SERIES 230 A2ADTL Transfer Switch User Manual

SERIES 230 A2ADTL Transfer Switch User Manual Version V1.1 Revision Date Jan 12 th, 2018 BOM Code 31013293 ASCO Power Technologies provides customers with technical support. Users may contact the nearest ASCO Power Technologies sales office or service center. Copyright 2018 by ASCO Power Technologies All rights reserved. The contents in this document are subject to change without notice. ASCO Power Technologies Address: 160 Park Avenue, Florham Park, NJ 07932-1049, USA Website: www.ascopower.com Customer Service Hotline: 800 800 ASCO E-mail: customercare@asco.com

Contents Chapter 1 Overview... 1 1.1 Model Description And Order Information... 1 1.1.1 Model Description... 1 1.1.2 Configuration Description... 2 1.1.3 Accessory Model Description And Order Information... 2 1.2 Appearance... 4 1.3 Product Composition... 4 1.4 Controller Functions And Features... 4 1.5 Panel Description... 5 1.6 Application Environment... 5 1.7 Technical Parameters... 6 1.7.1 Transfer Switch Technical Parameters... 6 1.7.2 Controller Technical Parameters... 6 1.7.3 Product Certification Requirements... 7 Chapter 2 Installation... 8 2.1 Installation... 9 2.1.1 Installation Of The Automatic Transfer Switch... 9 2.1.2 Automatic Transfer Switch Dimensions... 10 2.1.3 Automatic Transfer Switch Front Panel Cutout Dimensions... 11 2.1.4 Wiring Power Terminals... 11 2.1.5 Optional Accessory(Auxiliary Contact) Installation... 12 2.2 Controller Interface description... 14 2.2.1 Embedded C300 Controller Interface... 14 2.2.2 RS485 Communication Port (Optional)... 15 Chapter 3 Operation... 16 3.1 Panel And Indicator... 16 3.2 DIP Switch... 17 3.3 Generator Control... 18 3.4 Manual Operation... 18 3.5 Auto Operation... 19 3.6 Padlock... 20 Chapter 4 Maintenance And Troubleshooting... 21 4.1 Start Up / Function Test... 21 4.1.1 Manual Operation Test... 21 4.1.2 Verify Voltage Detection... 21 4.1.3 Automatic Operation Test... 21 4.2 Maintenance... 22

4.3 Common Troubleshooting... 22 Appendix 1 Surge Protection Device... 23 Appendix 2 Glossary... 24

Chapter 1 Overview 1 Chapter 1 Overview The ASCO Series 230 A2ADTL transfer switch is a professional PC class dual power transfer switch. It utilizes a highly reliable mechanism and electric design, based on a modular concept, and is suitable for various power continuity applications. All Series 230 transfer switch products meet EN60947-6-1 and GB/T14048.11-2016 requirements. This chapter will introduce the model description, appearance, product composition, and application environment, as well as the mechanical and electrical parameters of this transfer switch. 1.1 Model Description And Order Information 1.1.1 Model Description Taking A2ADTLB30080HBX0,72D as an example, the model description is shown in Table 1-1. Table 1-1 Model Description and Order Information A2ADTL B3 0080 H B X 0,72D 2 2 3 4 5 6 7 8 1 Series 230 A2ADTL Transfer Switch A2ADTL 2 3 4 Number of Poles, Configuration Rated Operating Current Rated Operating Voltage B1 Description Series 230 A2ADTL Transfer Switch Center-off (Three-Position Design) 2 Poles (Single Phase 220V-240V, 2-Wire with Neutral Line) 02 2 Poles (Two Phase 220V-240V, 2-Wire without Neutral Line) B3 0016 16A 0032 32A 0063 63A 0080 80A D E F H J K 4 Poles (Three Phase 380V-415V, 4-Wire with Neutral Line) 220V 230V 240V 380V 400V 415V 5 Controller B C300 Embedded Controller 6 Accessory 0 No Accessory 7 Enclosure 0 No Enclosure 8 Accessories X 72D 132A~132F With Accessory, Such as 132A~132F,72D With RS485 Communication Function Auxiliary Contacts Note: Default frequency setting is 50Hz. If the application frequency requires 60Hz, please indicate this when ordering Series 230 Products. ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

2 Chapter 1 Overview 1.1.2 Configuration Description Table 1-2 Configuration Information Switch Category Type Sample Poles Line and Neutral AC Voltage(V) A2ADTL B3 0080 H B 0 0 L1 L2 L3 N L-L L-N _ 220 B1 D C L1 L1 _ 230 B1 E N N 2 _ 240 B1 F Source I L1 N Source II _ 220 02 D C L1 L1 _ 230 02 E L2 L2 _ 240 02 F Source I L1 L2 Source II 380 220 B3 H L1 C L1 L2 L2 4 400 230 B3 J L3 L3 L4 L4 415 240 B3 K Source I L1 L2 L3 L4 Source II 1.1.3 Accessory Model Description And Order Information Auxiliary Contacts (Optional Accessory) 132 A A Auxiliary Contact Quantity Blank: 1 Contact A: 2 Contacts Function Code (See Diagram Below) 132A-132F: Auxiliary Contact Figure 1-1 Appearance of Auxiliary Contact For example: 132BA means 2 contacts, which close when the ATS transfers to Source II position. ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 1 Overview 3 Auxiliary Contact Code Definitions 132A-132C: The auxiliary contacts can be used to indicate positions with the CLOSED contact, see Table 1-3. 132D-132F: The auxiliary contacts can be used to indicate positions with the OPEN contact, see Table 1-4. Table 1-3 Schematic 1 132A-132C Diagram Auxiliary Contact Function Position of the Transfer Switch 132A 132B 132C I O II Auxiliary Contact Type and Part Number LAP1F100 (16021426) LAP1F010 (16021427) Auxiliary Contact Mounting Location (16021426*1) (16021426*1) (16021427*2) Table 1-4 Schematic 2 132D-132F Diagram Auxiliary Contact Function Position of the Transfer Switch 132D 132E 132F I O II Auxiliary Contact Type and Part Number LAP1F100 (16021426) LAP1F010 (16021427) Auxiliary Contact Mounting Location (16021426*1) (16021426*1) (16021427*2) ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

4 Chapter 1 Overview 1.2 Appearance The appearance of the transfer switch is shown in Figure 1-2. Figure 1-2 Appearance (Shown In B3 Configuration, 4 Poles) 1.3 Product Composition Series 230 Automatic Transfer Switch includes one transfer switch mechanism and one embedded C300 controller. The A2ADTL frame has 80A and below multiple ampere rating options. The following accessories are included as standard in the Series 230 A2ADTL Automatic Transfer Switch package, see Table 1-5: Table 1-5 Series 230 A2ADTL Transfer Switch Standard Accessories Accessory Name Model and Specification Part Number Quantity Mounting Clips Mounting Clips for A2ADTL/A2RDTL 63124584 6 pcs User Manual Series 230 A2ADTL Transfer Switch User Manual 31013293 1 copy The following accessories are optional in the Series 230 A2ADTL Automatic Transfer Switch package, see Table 1-6: Table 1-6 Series 230 A2ADTL Transfer Switch Optional Accessories Function Code Accessories Name Model and Specification Part Number Quantity 132A,132AA Auxiliary Contact (NO) LAP1F100 16021426 1 or 2 132B,132BA Auxiliary Contact (NO) LAP1F100 16021426 1 or 2 132C,132CA Auxiliary Contact (NC) LAP1F010 16021427 2 or 4 132D,132DA Auxiliary Contact (NC) LAP1F010 16021427 1 or 2 132E,132EA Auxiliary Contact (NC) LAP1F010 16021427 1 or 2 132F,132FA Auxiliary Contact (NO) LAP1F100 16021426 2 or 4 Note: These optional accessories must be ordered separately, and require configuration at the installation site. 1.4 Controller Functions And Features Detects the voltages and frequencies of two AC input sources, alarming when power source failures occur such as overvoltage, under-voltage, over-frequency and under-frequency. Multiple operating modes: Automatic (Source I Priority, No Source Priority), Remote Control, and Manual. Center-off position delay and Center-off position protection. Center-off position delay: When the transfer switch transfers the load from one source to another source, the transfer switch can stay in center-off position for a period of time. This center-off position delay time can be set by the user, depending on the load characteristics. The default setting is 0 seconds, but can be set to 5 seconds, in order to consume the load inertia and protect loads such as motors from getting damaged by the inrush current when the load transfers from one source to another source. ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 1 Overview 5 Center-off position protection: When enabled, if there are abnormalities with both Sources I and Source II, the transfer switch will transfer the load to the center-off position to protect the load from damage. Built in abnormal transfer diagnosis capabilities in order to protect the transfer switch. Many configurable options, including under voltage drop out, over voltage trip, center-off position delay and protection and switching time delays. User DI / DO Ports for external monitor and control. RS485 Communication Function (Optional). 1.5 Panel Description For the Transfer Switch panel description, see Figure 1-3. User Interface Lock Position Indicator Handle Controller Unit Manual/Auto Slide Mechanism Unit Handle Slot Arc Housing Figure 1-3 Panel Description 1.6 Application Environment Altitude: 2000 meters or less Ambient Temperature: -5 C to +40 C Humidity: Less than 95%, Non-condensing Degrees of Protection: IP20 Pollution Class: Class III Mounting Method: Horizontal or Vertical Product Standards Met: EN60947-6-1 and IEC60947-6-1 Environmental Standards Met: RoHS and WEEE ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

6 Chapter 1 Overview 1.7 Technical Parameters 1.7.1 Transfer Switch Technical Parameters See Table 1-7. Rated Operating Voltage Ue (Vac) Operating Voltage Range (V) Utilization Category Item Table 1-7 Technical Parameters Rated Insulation Voltage Ui (V) 800 Rated Impulse Withstand Voltage Uimp (kv) 8 Rated Short-Time Making Capacity Icm (peak) (ka) 8 Rated Short-Circuit Withstand Current Icw (ka/0.03s) 6 Rated Conditional Short-Circuit Current Iq (rms) (ka) Operating Transfer Time (s) <3.0 220 / 230 / 240(2 poles) 380 / 400 / 415(4 poles) Ue=220 / 230 / 240 / 380 / 400 /415 AC-32A, AC-33B 65(FUSE)\15(MCB) Parameter 125 Vac ~300Vac 1.7.2 Controller Technical Parameters Table 1-8 Application Temperature Requirement Condition Standards Operating Temperature -20 ~+60 Storage Temperature -40 ~+70 IEC61800-1 Humidity 95% Maximum, Non-Condensing IEC60721-3-3 3K3 Altitude 2000 Meters or Less IEC60721-3-3 3K3 Vibration 5~9,9~200Hz, 3.5mm, 10m/s2, 5 Sweep Cycles,1 oct/min IEC60721-3-3 3M4 Shock Sinusoidal,15g,6ms,3 Times/Direction IEC60721-3-3 3M4 Item Rated Operating Voltage(Ue) Operating Voltage Range Rated Operation Frequency Rated Insulation Impulse Withstand Voltage Protection Class of Enclosure Pollution Degree 3 Overvoltage Class Lightning Tolerability Level Table 1-9 Technical Parameters 220 240Vac 125~300Vac 50Hz / 60Hz 6kV for AC Circuitry / 1.5kV for DC Circuitry IP20 Distribution Level, Industral Conditions. Parameter AC input: 8/20us impulse current waveform, 20kA 10 times, 40kA 1 time, L-PE. More than 1 minute between two impulses.note 1 Signal IO: 8/20us impulse current waveform, differential-mode 3kA, common-mode 5kA, 10 times.note 2 Note 1: Tested with Class C SPD. No loss of controller power, no damage and no performance degradation indicated. Note 2: Only for RS-485 communication ports, GEN and FIRE port. Table 1-10 Detection Range and Accuracy Signal Type Detected Accuracy Detectable Range AC Voltage ±1.5% 125~300Vac AC Frequency ±1% 45Hz ~ 65Hz ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 1 Overview 7 Table 1-11 Electromagnetic Interference Performance Parameters Item Requirements Standard Conducted Disturbance Emission Class A EN 55022 Radiation Disturbance Emission Class A EN 55022 Harmonic Current Emission Class A Equipment EN61000-3-2 Voltage Fluctuations and Flicker - EN61000-3-3 Surge Immunity Immunity to Electrical Fast Transient Immunity to Electrostatic Discharge Immunity to Radiated Electric Fields Immunity to Continuous Conducted Interference Table 1-12 Electromagnetic Immunity Performance Parameters Item Requirements & Criterion Standard Criterion: 1 Line to Ground: 2KV Line to Line:1kV Level 1 Criterion: A Power Port: 2kV Signal Port: 1kV Criterion: 1 Contact discharge: 4kV Air discharge :8kV Criterion: 1 10V/m, 80MHz - 1GHz Criterion: 1 Power Port: 10V Signal Port: 10V, 150 khz - 80MHz EN 61000-4-5 EN 61000-4-4 EN61000-4-2 EN61000-4-3 EN 61000-4-6 1.7.3 Product Certification Requirements Table 1-13 Certification Requirements Certification Categories CE IEC Standard EN60947-6-1 IEC60947-6-1 ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

8 Chapter 2 Installation Chapter 2 Installation! DANGER DANGER is used in this manual to warn of a hazardous situation which, if not avoided, will result in death or serious injury.! WARNING WARNING is used in this manual to warn of a hazardous situation which, if not avoided, could result in death or serious injury.! CAUTION CAUTION is used in this manual to warn of a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE NOTICE is used in this manual to bring attention to an incorrect application which, if not avoided, could result in improper operation. An experienced and licensed electrician must install the ATS. Each automatic transfer switch contains a rating label (name plate) to define the rated load (Ampere rating). Refer to the label on the transfer switch for specific values.! DANGER Do not exceed the values on the rating label. Exceeding the rating can cause personal injury or serious equipment damage. ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 2 Installation 9 2.1 Installation The Automatic Transfer Switch is connected to an electronic control circuit with a power supply that is can be impacted by overvoltage conditions, leading to premature loss of function. Therefore, it is recommended that users install Class C Surge Protection Devices upstream of automatic transfer switches, using the proper SPD wiring methods. See Appendix 1 (Surge Protection Device) for additional details and recommended wiring methods. The A2ADTL transfer switch is not suitable for isolation, and a switch-disconnector must be installed when isolation function is needed. 2.1.1 Installation Of The Automatic Transfer Switch The A2ADTL transfer switch dimensions are shown in Figure 2-1. It can be mounted to a DIN35 Rail in the cabinet. First pull out the DIN35 Rail Mounting Snaps of transfer switch, assemble transfer switch to the DIN35 Rail and then push the DIN35 Rail Mounting Snaps into place. The transfer switch has 3 DIN35 Rail Mounting Snaps. ❷ ❸ ❷ ❶ ❶ ❹ Automatic transfer switch installation steps: ❶ Pull (3) mounting snaps out to extended position ❷ Mount the groove on rear of switch to enclosure DIN rail ❸ Push/rotate switch to snap onto DIN rail as shown ❹ Push (3) mounting snaps back into the locked position Automatic transfer switch removal steps: ❶ Use screwdriver to pull (3) mounting snaps down to extended position ❷ Pull switch forward and up to disengage from the DIN rail Figure 2-1 Automatic Transfer Switch DIN Mounting The transfer switch may also be mounted directly to an enclosure or other surface using screws and the (6) included metal mounting clips referenced in Section 1.3 and shown in Figure 2-2 Slide and snap the (6) mounting clips into the slots on the rear of the transfer switch, in the positions as shown in Figure 2-2. (3) On top and (3) on the bottom. The transfer switch may now be mounted to an enclosure or other surface using screws positioned within the U-shaped opening of each of these clips. ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

10 Chapter 2 Installation Mounting Clip (6x) Figure 2-2 Automatic Transfer Switch Clip Mounting To remove the mounting clips, use a flat head screw driver at the base of the clip and push it out from the back of the plastic transfer switch housing. 2.1.2 Automatic Transfer Switch Dimensions Figure 2-3 Mounting Dimensions (unit: mm) Dimensions of A2ADTL as Table 2-1 Table 2-1 A Dimensions 2 Pole 4 Pole A (mm) 216 252 B (mm) 36 72 C (mm) 83 119 ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 2 Installation 11 2.1.3 Automatic Transfer Switch Front Panel Cutout Dimensions 6X 108.0 119.0 107 88 14 >7mm 124.0 A 47mm 2 Pole 4 Pole A (mm) 218 254 Figure 2-4 Recommended Front Panel Cut Out Dimensions (Unit: mm) 2.1.4 Wiring Power Terminals 1. Loosen the screw of wire plate using Philips/Cross-head screwdriver. 2. Insert the end of the cable wire into power terminal using a Philips/Cross-head screwdriver rotating clockwise. The cross sectional area of the cable wire used to connect the transfer switch should be a minimum of 4mm 2 or 12AWG, and should not exceed 35mm 2 or 2AWG. Figure 2-5 Wiring ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

12 Chapter 2 Installation! WARNING 1. The transfer switch inlet and outlet shall be properly connected. The highest priority power source should be connected to Souce I, and the alternate power source should be connected to Source II. 2. Cable ends bare / stripped wire length must be 10±2mm minimum / maximum. 3. It is essential to tighten all M4 power terminal screws to a torque of 4N m. 4. Make sure that the LINE and LOAD cabling are connected correctly in accordance with labeling shown in Figure 2-6. Figure 2-6 Labels Indicating Line and Load Position For Cable Connections 2.1.5 Optional Accessory(Auxiliary Contact) Installation The Auxiliary Contact installation locations are shown in Figure 2-7. The installation procedures are as follows: 1. With the auxiliary contact screw holes facing outward, align the 4 claws with the corresponding 4 square holes on the transfer switch side plate, and then snap it into position, as shown in Figure 2-7. (Pay special attention to the direction of the screw hole faces as shown below) Screw holes Upward Location 1 Location 2 Figure 2-7 Auxiliary Contact Mounting Locations ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 2 Installation 13 2. When mounting an additional auxiliary contact on top of another contact, remove the sticker located in the center of the contact that is being mounted, then as above, with the screw holes facing upward, snap the 4 claws into the corresponding 4 square holes on the previously installed auxiliary contact and push it into position, as shown in Figure 2-8. If installing an additional auxiliary contact on top of another, first remove the sticker on the base auxiliary contact, otherwise do not remove the sticker to protect the auxiliary contact from dust and debris. Remove The Sticker Keep The Sticker Figure 2-8 Auxiliary Contact Installation On Top Of Another Contact NOTICE 1. The outer center sticker on an auxiliary contact that is mounted directly to the switch side plate must be removed before installation of an additional auxilary contact on top of it. 2. Keep the center sticker on the outer auxiliary contact in place to avoid debris or dust from getting inside. 3. The maximum number of auxiliary contacts that can be used are 4, or 2 contacts per location. There are 2 slot locations. 3. Auxiliary Contact Specifications: 1) Ratings: Rated Thermal Current Ith /A Rated Insulation Voltage V Rated Impulse Withstand Voltage Uimp/kV Degree Of Protection Pollution Class Maximum Cable Cross Section 16 690 4 IP20 3 2.5mm2 2) Additional Information: AC-15 DC-12 DC-13 Ue / V Ie / A Ue / V Ie / A P / W Ie / A P / W 230 6 24 10 240 2 48 400 4 72 4 288 0.8 58 690 2 125 2 250 0.55 69 250 0.55 138 0.27 68! CAUTION In order to ensure proper function, the auxiliary contact circuit should have a minimum current flow of 5mA ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

14 Chapter 2 Installation 2.2 Controller Interface description 2.2.1 Embedded C300 Controller Interface Figure 2-9 Controller interface port Table 2-2 Controller interface port description Port Port label Attribute Definition Port 1 + DC IN 24VDC±15% DC 24V external power supply. 2-3 4 5 GEN 30VDC, 0.5A Rating Current > 5mA Normally Closed (NC) & Normally Open (NO) relay outputs. During Source 1 Priority mode, when the controller loses power or Source 1 has some abnormality, the NC contact closes and the NO contact opens. The engine will start. When Source I returns and the switch transfers to Source I, the NC contact opens and the NO contact closes after 2 minutes (engine cool down), stopping the engine. 6 7 ALM 30VDC, 0.5A Rating Current > 5mA Alarm relay output, when the controller raise alarm, the relay NO contact closed. X1 8 + FIRE 9-10 DI1 11 DI2 12 DI3 13 DI4 14 DI_COM 24VDC±30%, the polarity must installed as shown Passive Digital Input Passive Digital Input Passive Digital Input Passive Digital Input Passive Digital Input-COM Fire signal will force the switch to center-off position. Remote operation mode, short connection, the switch will transfer to center-off position Remote operation mode, short connection, the switch will transfer to Source I Remote operation mode, short connection, the switch will transfer to Source II Push to test, connect to COM 15s, will start the Engine test. Passive digital input-com ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 2 Installation 15 2.2.2 RS485 Communication Port (Optional) There is an optional RS485 communication port on the side of controller Zone, as shown in Figure 2-10 when installed. Figure 2-10 RS485 Communication Port By using an external connection wire, a computer or other intelligent device can communicate with the controller. MODBUS protocol has been integrated for communication applications. The RS485 communication port is a half-duplex communication port, supplying 485+ and 485- as differential signals. DGND is communication digital ground and PGND is protected ground. Wire connections should be made according to the specific application. The right plug (PE) is a Protected Earth connector. Connecting a very short grounding cable to this port provides improved voltage surge and lightning protection of the RS485 communication port, and is recommended when using the communications port. Table 2-3 RS485 Communication Port description(optional) Port Port label Attribute Definition 1 485+ Communication signal 485A 2 485- Communication signal 485B 3 DGND Digit GND Digit GND 4 PGND Protect Grounding Protect Grounding ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

16 Chapter 3 Operation Chapter 3 Operation 3.1 Panel And Indicator See Figure 3-1 for the control panel and see Table 3-1 for the indicator instruction. DIP Switch 1 DIP Switch 2 Source I available Indicator Source I available Indicator Operation Status Indicator Alarm Indicator Source I Connected Indicator Center-off Position Indicator Source II Connected Indicator Communication Port (For ENP Service Engineer Only) Figure 3-1 Control Panel Table 3-1 Indicator Description Indicator Operation Status Indicator (Green) Alarm Indicator (Red) Source I Available Indicator (Green) Source II Available Indicator (Green) Source I Connected Indicator (Green) Source II Connected Indicator (Green) Center-Off Position Indicator (Yellow) Description This light indicates the operating status of the Controller. When it is on or flashing, it indicates normal operation; and when it is off, it indicates abnormal operation. When in Source I Priority Mode, the alarm indicator will be on when the Controller detects such abnormalities as undervoltage, overvoltage, phase loss or complete power failure on Source I. It ignores the status of Source II. When in the No-Source Priority Mode or the Remote Mode, the alarm will be on when the Controller detects such abnormalities as undervoltage, overvoltage, phase loss and power failure on Source I or Source II. Otherwise, the alarm will flash during any critical failure, such as switch operation failure or a fire alarm. When it is on, it indicates normal operation of Source I. When it is off, it indicates that Source I is not connected or a loss of power. When it is on, it indicates normal operation of Source II. When it is off, it indicates that Source II is not connected or a loss of power. When it is on, it indicates that Source I is connected. When it is off, it indicates that Source I is in the process of switching off or is not connected. When it is on, it indicates that Source II is connected. When it is off, it indicates that Source II is in the process of switching off or is not connected. When it is on, it indicates that the load is in the Center-OFF position. When it is off, it indicates that the load is not in the Center-OFF position and it is connected to either Source I or Source II. ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 3 Operation 17 3.2 DIP Switch Two DIP switches are located on the upper left of the Control panel, with 16 bits in total. When the white slider of each bit is at the top, it is ON, and when it is at the bottom, it is OFF, as shown in Figure 3-2. Bit 1 Bit 8 ON OFF Figure 3-2 DIP Switch The DIP switch is used for various parameter settings; definitions are shown in Table 3-2, Table 3-3 and Table 3-4. X in the table means that Bit is unrelated to that setting. Table 3-2 DIP Switch 1 Illustration Setting Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Parameter Rated Voltage Rated Frequency Under-Voltage Dropout Overvoltage Trip Control Mode OFF OFF X X X X X X 220V ON OFF X X X X X X 230V OFF ON X X X X X X 240V ON ON X X X X X X 208V X X OFF X X X X X 50Hz X X ON X X X X X 60Hz X X X OFF OFF X X X Ref Table 3-3 X X X ON OFF X X X Ref Table 3-3 X X X OFF ON X X X Ref Table 3-3 X X X ON ON X X X Ref Table 3-3 X X X X X OFF X X Overvoltage Trip Disabled X X X X X ON X X Overvoltage 120%Trip Enabled X X X X X X OFF OFF Source I Priority X X X X X X ON OFF Source II Priority X X X X X X OFF ON No Source Priority X X X X X X ON ON Remote Control Mode When enabled, Overvoltage Dropout is 120% of rated operating voltage, Pickup is 115%. Rated Frequency: Under Frequency Dropout Is 80% of set frequency, Pickup is 90%. Over Frequency Dropout is 115% of set frequency, Pickup is 110%. Dropout = Value at which the controller will initiate transfer to an Alternate source Pickup = Value at which the controller will return to the Preferred source Default Setting Ref to Order Bit3 OFF Bit4 OFF Bit5 OFF Bit6 OFF Bit7 OFF Bit8 OFF Table 3-3 Under-Voltage Dropout and Pickup Settings Rated Voltage Bit4,Bit5 208V(Line to Neutral) 220V/230V/240V(Line to Neutral) Dropout Pickup Dropout Pickup OFF OFF 85% (177V) 90% (187V) 85% 90% ON OFF 80% (166V) 85% (177V) 80% 85% OFF ON 75% (156V) 80% (166V) 70% 75% ON ON 70% (146V) 75% (156V) 65% 70% ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

18 Chapter 3 Operation Table 3-4 DIP Switch 2 Illustration Setting Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Parameter Center Position Protection Center Position Time Delay Priority To No- Priority Time Delay No-Priority To Priority Time Delay Three Phase / Single Phase Communication parameters OFF X X X X X X X Disable ON X X X X X X X Enable X OFF X X X X X X Disable X ON X X X X X X Enable 5s X X OFF OFF X X X X 0s X X ON OFF X X X X 5s X X OFF ON X X X X 30s X X ON ON X X X X 5 Minutes X X X X OFF OFF X X 1s X X X X ON OFF X X 30s X X X X OFF ON X X 5 Minutes X X X X ON ON X X 30 Minutes X X X X X X OFF X Three Phase X X X X X X ON X Single Phase X X X X X X X OFF Default setting X X X X X X X ON User defined Default Setting Bit1 OFF Bit2 OFF Bit3 OFF Bit4 OFF Bit5 OFF Bit6 OFF Bit7 OFF Bit8 OFF 3.3 Generator Control The controller can control a generator through the GEN port. In Source I Priority mode, when the controller loses power or Source I (Priority source) has some abnormality, the controller sends a generator start signal. When priority source availability returns, a time delay keeps the generator running for 2 minutes (cool-down period), then sends a generator stop signal. Note: If the controller loses power for any reason, the NC and COM contact of GEN will close, sending a generator start signal. Once the controller restarts, a generator stop signal will be sent after a 2 minute cool-down time delay, if the normal source is available. 3.4 Manual Operation The transfer switch manual operation procedures are as follows: 1. Slide the AUTO/MANUAL cover left, to MANUAL position, as shown in Figure 3-3. Figure 3-3 Switching the AUTO/MANUAL to MANUAL! CAUTION Make sure AUTO/MANUAL SWITCH lines up with the correct indication position mark 2. Remove the handle from the holding slot. Insert the operating handle into the handle slot, and rotate the handle according to the position and direction shown in the position indicator window. The handle must be fully inserted into slot, or switch will not operate correctly. 1) When the window initially displays I (Normal Source), perform the following operations as needed: To switch to the OFF Position (Center-Off), rotate the handle 90 degrees counter-clockwise. After hearing a 'click', and the window displays OFF, it indicates that the switch has successfully transferred to the OFF Position. ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 3 Operation 19 To switch to Position II (Emergency Source), rotate the handle 180 degrees counter-clockwise. After hearing a 'click, and the window displays II, it indicates that the switch has successfully transferred to Position II. 2) When the window initially displays OFF (Center-off Position), perform the following operations as needed: To switch to Position I (Normal Source), rotate the handle 90 degrees clockwise. After hearing a click', and the window displays I, it indicates that the switch has successfully transferred to Position I. To switch to Position II (Emergency Source), rotate the handle 90 degrees counter-clockwise. After hearing a click', and the window displays II, it indicates that the switch has successfully transferred to Position II. 3) When the window initially displays II (Emergency Source), perform the following operations as needed: To switch to the OFF Position (Center-Off), rotate the handle 90 degrees clockwise. After hearing a 'click', and the window displays OFF, it indicates that the switch has successfully transferred to the OFF Position. To switch to Position I (Normal Source), rotate the handle 180 degrees clockwise. After hearing a 'click', and the window displays I, it indicates that the switch has successfully transferred to Position I. The detailed handle rotation positions are shown in Figure 3-4. I (Normal source) OFF (Center-off-Position) II (Emergency Source) If Initial Position is Position OFF If Initial Position is Position OFF If Initial Position is Position OFF Figure 3-4 Switch Rotation Diagram! CAUTION 1. If the AUTO/MANUAL switch is not in the right position (MANUAL), the handle cannot be inserted. 2. If the handle is not fully inserted into the handle slot, the handle will not operate or the socket may be damaged. 3. The manual handle operation torque required is typically less than 2N m. If greater force is required, check switch position and direction of handle rotation before proceeding. Forces higher than 4N m can damage the manual operator. 4. Take care when operating by hand that fingers do not scrape on the housing of the transfer switch. 3.5 Auto Operation 1. Remove the operating handle from the handle hole and replace in the handle storage slot for future use. 2. Slide the AUTO/MANUAL cover to the right, into the AUTO Position, as shown in Figure 3-6. Figure 3-5 Switching AUTO/MANUAL to AUTO 3. Once AUTO/MANUAL switch is in the 'AUTO' Position, the switch will automatically transfer to the position that is Currently set in the controller. ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

20 Chapter 3 Operation! WARNING 1. The manual operation handle MUST be removed from the handle slot, and replaced in the storage slot for the AUTO/MANUAL cover to slide into the AUTO Position. 2. Make sure AUTO/MANUAL cover slides completely to the right as shown in Figure 3-6 to ensure automatic function. Otherwise, the transfer switch will not work in Automatic Mode. 3.6 Padlock 1. Ensure that the AUTO/MANUAL switch is in MANUAL position and Switch is in OFF position as shown in Figure 3-7. Figure 3-6 Switching AUTO/MANUAL to LOCK 2. Pull the padlock pull-tab out and lift up to expose the lock hole. Then insert the padlock into the hole to lock it, as shown in Figure 3-8.! CAUTION 1. The transfer switch must be in the OFF position, and the AUTO/MANUAL cover slid all the way to the left in the MANUAL position, for the padlock pull-tab to be pulled out. 2. The specified diameter of the A2ADTL transfer switch padlock must be φ3mm to φ5mm. Figure 3-7 Padlock Pull Tab ASCO Series 230 A2ADTL Transfer Switch User Manual

Chapter 4 Maintenance And Troubleshooting 21 Chapter 4 Maintenance And Troubleshooting This chapter describes the transfer switch installation, commissioning and common faults and maintenance methods. 4.1 Start Up / Function Test 4.1.1 Manual Operation Test Both power supply sources must be disconnected before manual testing can begin. Refer to Chapter 3.4 to operate the switch in Manual mode. Using the handle, manually operate the transfer switch from Source I position to Source II position, and then return the switch to the Source I position. The switch operation should be smooth, and without interruption. 4.1.2 Verify Voltage Detection First make sure the rated voltage of the transfer switch on the nameplate is the same as the rated voltages of both power supply sources. Connect Source I live power supply source to the transfer switch. Source I Indication LED will be on (green). Then disconnect Source I by opening the upstream circuit breaker, and repeat with Source II; the Source II Indication LED will be on (green). This ensures that the source wiring is correct. Figure 4-1 LED Light Indication! DANGER When measuring voltage of power sources to ensure it matches the switch nameplate rating, do not touch the terminals or copper bars of the transfer switch, otherwise it could result in death, or serious injury. 4.1.3 Automatic Operation Test This is used to test the ATS in automatic operation mode and operate the transfer switch automatically. 1) Connect Source I live power supply source to the transfer switch by close the upstream circuit breaker. The Transfer Switch should transfer to Sources I position. Then disconnect Source I by opening the upstream circuit breaker. 2) Connect Source II live power supply source to the transfer switch by close the upstream circuit breaker. The Transfer Switch should transfer to Sources II position. Then disconnect Source II by opening the upstream circuit breaker. ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

22 Chapter 4 Maintenance And Troubleshooting 3) Connect Source I and Source II live power supply source to the transfer switch by close the upstream circuit breaker, finished the test. 4.2 Maintenance To ensure consistent reliability of the transfer switch to make sure it is operating normally, regular maintenance testing should be conducted. It is recommended to do so once every three months. 4.3 Common Troubleshooting Table 4-1 Troubleshooting Guideline Run LED Off Troubleshooting Issues ALARM LED Constantly on or flashing No response in auto mode The handle cannot be used to operate the switch manually. Once handle is inserted, one cannot operate the handle The AUTO/MANUAL switch cannot be set to 'AUTO' Position The padlock pull-tab cannot be pulled up Recommended Action Check if there is normal voltage in the power input port Check power supply Check DIP Switch 1 Bit 1,Bit 2 setting Controller may be damaged, please contact your authorized Service provider representatives. C heck if Source I or Source II is available. If the Alarm LED is still flashing, this indicates that there is a switch failure. Cycling any DIP switch Bit will clear the error. Be sure to return the Bit to its original intended position. If Alarm indication occurs often, it indicates that the transfer switch may have a more serious issue, please contact your authorized Service representative. Check if the AUTO/MANUAL switch is in 'AUTO' Position. Check if the wiring is routed correctly Check if the power supply meets the rated voltage range. Check if the AUTO/MANUAL switch is in 'MANUAL' Position Check if the transfer switch has been padlocked. Check if the handle is turning in the correct direction based on Chapter 3.4. Check if operator is applying enough force to handle (recommended operating torque is typically less than 2 N m and never more than 4 N m) Check to make sure the handle has been removed from the handle slot. Check to make sure the padlock pull-tab has been pushed all the way down to the original unlocked position. Check if OFF is displayed in the position indicator window. Check to make sure the AUTO/MANUAL cover is in the 'MANUAL' Position For all other issues, please contact your authorized Service provider. ASCO Series 230 A2ADTL Transfer Switch User Manual

Appendix 1 Surge Protection Device 23 Appendix 1 Surge Protection Device 1. The Series 230 Automatic Transfer Switch must be protected against frequent voltage surges or power anomalies by installing an upstream Surge Protection Device (SPD) before connecting to a live Source I and Source II. It is recommended that the SPD wire connections use the V-shaped wiring method shown in Appended Figure 1. When limited by practical conditions, if it is difficult to adopt V-shaped wiring, the direct-parallel-connection method shown in Appended Figure 2 may also be used. It is very important that the connection wire should be as short as possible (less than 0.5m) when using direct-parallel-connection method to achieve better protective performance. 2. The connection wires should be multi-core copper wire with a cross-sectional area greater than 10mm 2 (AWG6). 3. Appropriate MCB or Fuse should be serial-connected to the front-end of the SPD for AC power supply. The MCB should have the C tripping characteristic. 4. The Source power supplies should be disconnected when installing SPD s. Live installation is prohibited. 5. While an SPD may not need special maintenance, it is recommended that one periodically checks whether the indicators of the SPD are functioning normally and that the SPD is operating in accordance with the manufacturer s requirements. 6. The Wiring method shown in Appended Figure 3 is forbidden. If a previously installed SPD is wired similar to Appended Figure 3, the wiring needs to be modified to Appended Figure 1 or Appended Figure 2. Source I L1 L2 L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Series230 Transfer Switch Load Source I L1 L2 L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Series230 Transfer Switch Load L1 Source L2 II L3 N Connection Wiring Lenth 1m Source II L1 L2 L3 N Connection Wiring Lenth 1m MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Cable line 2m Grouding Cable Lenth 0.2m Controller MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Cable Line 2m Controller Grouding Cable Lenth 0.2 m Appended Figure 1: V-Shaped Wiring Method Appended Figure 2: Direct-Parallel-Connection Method Source I L1 L2 L3 N Connection Wiring Lenth 1m Series230 Transfer Switch MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Load L1 Source L2 II L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Cable Line 2m Controller Grouding Cable Lenth 0.2m Appended Figure 3: Incorrect Connection Method ASCO Series 230 A2ADTL Automatic Transfer Switch User Manual

24 Appendix 2 Glossary Appendix 2 Glossary ATS NC NO Automatic Transfer Switch Normally Closed Normally Open ASCO Series 230 A2ADTL Transfer Switch User Manual