Quick Start Guide. Variable Speed Drive. Part Number: Issue: 3

Transcription

1 EVC Series Quick Start Guide English Issue 3.book Page 1 Friday, March 11, :38 PM Quick Start Guide Variable Speed Drive Part Number: Issue: 3

2 Original Instructions For the purposes of compliance with the EU Machinery Directive 2006/42/EC. General Information The manufacturer accepts no liability for any consequences resulting from inappropriate, negligent or incorrect installation or adjustment of the optional operating parameters of the equipment or from mismatching the variable speed drive with the motor. The contents of this guide are believed to be correct at the time of printing. In the interests of a commitment to a policy of continuous development and improvement, the manufacturer reserves the right to change the specification of the product or its performance, or the contents of the guide, without notice. All rights reserved. No parts of this guide may be reproduced or transmitted in any form or by any means, electrical or mechanical including photocopying, recording or by an information storage or retrieval system, without permission in writing from the publisher. Drive firmware version This product is supplied with the latest hardware specific firmware version. If this drive is to be connected to an existing system or machine, all drive firmware versions should be verified to confirm the same functionality as drives of the same model already present. This may also apply to drives returned from a Service Centre or Repair Centre. If there is any doubt please contact the supplier of the product. The firmware version of the drive can be verified by viewing Pr ; it is also listed at the bottom of this page. Drive Software version This product is supplied with the latest application specific software version. The software version can be verified by viewing Pr ; it is also at the bottom of this page. WARNING This document is a guide only. It does not provide safety information. Incorrect installation or operation of the drive could result in injury or equipment damage. Refer to the Drive User Guide for essential safety information. Copyright March 2016 Drive Firmware version: XX.XX onwards Drive Software version: onwards

3 Contents 1 Drive wiring Fusing Line reactor / Choke (optional depending on local regulations) EMC filter Drive-compressor cables AC mains cables System control Analog / Digital Modbus Keypad Analog I/O configuration Modbus configurations Keypad shortcuts Parameters Configuration control word parameter System control word parameter Menu 0 - compressor specific parameters PC Tools - HVAC Connect Quick start commissioning / start-up using HVAC Drive Connect (V onwards) Quick Start Guide

4 1 Drive wiring A Warning contains information which is essential for avoiding a safety hazard. WARNING For detailed information on making the necessary power connections to the drive, to fusing and to EMC accessories, please refer to the documentation listed below. Be sure to follow local regulations when deciding whether or not EMC filters and line reactors will be required for your specific application. 1.1 Fusing Refer to section 4.3 of the Drive User Guide for acceptable fuse amperage and class Line reactor / Choke (optional depending on local regulations) Refer to section in the Drive User Guide for line reactor considerations. 1.3 EMC filter Refer to section in the EMC Data sheet for external EMC filter selection Drive-compressor cables Refer to section 4.3 of the Drive User Guide for details on drive output cable size. 1.5 AC mains cables The final mains connections should be made last, after verifying all other wiring. Refer to section 4.3 of the Drive User Guide for details on drive input cable size. 4 Quick Start Guide

5 Figure 1-1 below illustrates the required power connections for the AC mains, the optional EMC accessories, grounding, and the compressor. The motor terminals for the compressor are always located on the bottom of the drive. However, the location of the AC mains terminals may vary by drive model. Figure 1-1 AC and Compressor connections AC Connections Motor Connections L1 L2 L3 PE U V W Fuses L1 Optional EMC filter Optional line reactor L2 Mains Supply L Supply Ground 6 7 Drive Compressor U L1 V L2 W L3 ground ground Drive wiring System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 5

6 2 System control The drive can be controlled in one of two ways: in analog / digital control mode, or in Modbus control mode. The drive is configured to run in analog / digital control mode by default. If the application requires Modbus control then some drive parameters will need to be adjusted as outlined in section 2.2 Modbus on page Analog / Digital The drive is set up to run in analog / digital control mode by default. The following connections are the preferred connections to run the drive (as illustrated in Figure 2-1): Drive Enable (between pins 22 and 31) Run/Stop (between pins 22 and 26) Drive Reset (between pins 22 and 25) Compressor On (indicated from pin 24) Speed Reference 0 to 10 V (between pins 4, 8 and 11) Pressure Sensors 2 x 4-20 ma (between pins 5 and 22, 7 and 22) Stator Heating (between pins 22 and 27) Defrost Control (between pins 22 and 28) User Trip e.g. OEM emergency stop (between pins 22 and 29) Drive OK on Relay (between pins 41 and 42) The following connections are used at a minimum to put the drive in to a basic test mode: Drive Enable (between pins 22 and 31) Run/Stop (between pins 22 and 26) Drive Reset (between pins 22 and 25) Speed Reference 0 to 10 V (between pins 4, 8 and 11) Set Pr bit 3 = 1 to disable Envelope Control Refer to section 6 in the Drive User Guide for specific details regarding these features and their corresponding connections. If the drive has previously been configured to run in Modbus control mode then there are two ways to configure the drive back into analog / digital control mode. 1. The simplest option is to reset the drive back to factory defaults. The drawback to this method is that ALL parameters are defaulted. If other drive parameters have been customized then they will be lost. Position the keypad to any "zero" parameter (i.e. Pr MM.000); press enter. Scroll up to "Reset 60 Hz defs", press enter. 2. The second option is to manually configure the drive back into the analog / digital control mode. This method will retain all other parameter modifications previously made to the drive. Set the following parameters: Pr bit 8 = 0 Adjust other features in Pr as required Verify that Pr = 0 Reconfigure analog inputs according to Table 2-1 Control drive operation via I/O switch on pins 26 and 31 Details on Pr and Pr can be found in section 4.1 and section Quick Start Guide

7 The following figure illustrates the preferred connections to control the drive and compressor. Figure 2-1 Connections available in analog / digital control mode Polarized connectors * The Drive Enable /Pressure Switch terminal is a positive logic input only. NOTE Suction Pressure Sensor 4-20 ma, 18 Bar Discharge Pressure Sensor 4-20 ma, 50 Bar Speed signal 0-10 V +10 V GND Compressor On Drive Reset Start / controlled stop Stator Heating On Defrost Control User Trip Drive Enable Pressure Switch* Drive OK Signal Signal Signal Optional Optional 0 V common External 24 V supply (not used) When the drive is configured for analog / digital control mode (i.e. Pr bit 8=0), a logic high signal on the Start / Controlled Stop pin 26 will turn on the compressor; a logic low signal on pin 26 will initiate the controlled shutdown sequence V 8 AI V common 21 0 V common V 23 0 V common V common V common +AI1 -AI1 AI2 AO1 AO2 Digital I/O 1 Digital I/O 2 Digital I/O 3 Digital I/O 4 Digital I5 Digital I6 Relay (Over voltage category II) System control System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 7

8 The following figure illustrates the system connections for analog / digital control mode. Note that all system features and control take place via pairs of signal wires as shown in Figure 2-1. Figure 2-2 Analog / digital control mode OEM controller DLT Start/Stop and Stator Heating Control 2 x digital input Speed Reference command (rpm) 0-10 VAnalog signal User Trip, Drive Reset,Defrost control 3 x digital input Drive OK Relay Compressor On 1 x Digital Output AI2 Pevaporating Discharge Temperature AI1 Pcondensing Pe For Super Heat Control Condenser Pressure (Pc) Condenser Motor Power Expansion Valve Fan Compressor * Evaporator Evaporator Pressure (Pe) * Compressor functionality provided by the dedicated drive software. 8 Quick Start Guide

9 Table 2-1 lists the parameters and corresponding values that need to be configured before the drive will operate in analog / digital control mode using envelope control. The following parameters are the default values for the drive assuming that an 18 bar sensor is used for suction and a 50 bar sensor is used for discharge. Table 2-1 Settings for Analog Speed Command with Envelope Control Parameter Description Value Device AI1 Control 4 (4-20 ma) Analog Input 1 Suction Pressure (4-20 ma) Or Analog Reference Modbus setting 4 (4-20 ma) 6 (0-10 V) Scaling Destination Address AI2 Control (4-20 ma) Analog Input 2 Discharge Pressure (4-20 ma) Or Analog Reference 4 (4-20 ma) 6 (0-10 V) Scaling Destination Address AI3 Control 9 6 (Therm No (Volt) Analog input 3 Trip) 0-10 V Speed Reference Scaling 1 (Volt) Destination Address The drive assumes that the pressure transducer is rated in [bar]. However, the drive is configured to display the measured suction and discharge pressure in [PSIG]. The drive can be configured to display the pressures in [bar] by adjusting Pr [bit 5]=1. The scaling values for Pr and Pr in Table 2-1 will need to be recalculated under the following scenarios: 1. The suction transducer is not rated for 18 [bar] and/or the discharge transducer is not rated for 50 [bar]. 2. The user wants to view the pressure in [bar] units. System control System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 9

10 Example 1: Calculating the scaling values for an 18 bar (suction) transducer and for a 50 bar (discharge) transducer; displaying units in [bar]. Set Pr bit 5 = 1. 18[bar] 100 Pr = = [bar] 100 Pr = = Example 2: (drive default values) Calculating the scaling values for an 18 bar (suction) transducer and for a 50 bar (discharge) transducer; displaying units in [PSIG]. Set Pr bit 5 = 0. Note that a factor of 14.5 [PSIG] per 1 [bar] is added in to the equation below. Pr = 18[bar] [ PSIG per bar] = Pr = 50[bar] [ PSIG per bar] = In summary, use the following equations to calculate the scaling values for Table 2-1. ( FullBarValue) 100 scale[psig] = = scale[bar] = ( FullBarValue) Quick Start Guide

11 2.2 Modbus This section will guide you through the steps to configure the drive to run in Modbus control mode. The following connections are required to run the drive (as illustrated in Figure 2-3): Drive Enable/Pressure Switch (between pins 22 and 31) Connection to OEM controller via RJ485 port Figure 2-3 Connections available in Modbus control mode V 1 8 Pin 2 - TxRx Pin 3-0V/GND Pin7 - /TxRx Drive Enable Pressure Switch Once the appropriate control connections have been made to the drive then adjust the following parameters to configure the drive into Modbus control mode: Set the following parameters: Pr bit 8 = 1 (default is 0) Adjust other features in Pr as required Adjust Pr = 0.0 Adjust Pr = 0.0 Adjust Pr = 0.0 Set desired speed with Pr Control drive operation from PLC via adjusting the bits in Pr as required Details on Pr and Pr can be found in section 4.1 and section 4.2. System control System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 11

12 Figure 2-4 illustrates the system connections for Modbus control mode. Note that all system features and control take place via a network patch cable and not through individual pairs of wire as would be used in the analog / digital control mode. Figure 2-4 Modbus control mode OEM controller Reset Start / Stop and Stator heating control Stator heat Defrost control OEM trip Speed reference command (rpm) Drive condition (alerts / trips / lockouts) Pc and Pe Discharge Line Temperature Discharge Temperature Pe Pc Condenser Pressure (Pc) Expansion Valve Condenser Fan Compressor* Motor Power Evaporator Evaporator Pressure (Pe) * Compressor functionality provided by the dedicated drive software. 12 Quick Start Guide

13 3 Keypad A keypad is used view and make adjustments to the drive parameters. There are two optional keypads that can be used with the drive: a snap on keypad that physically attaches to the drive or a remote keypad that can be mounted to the outside of an enclosure. The snap on keypad connects to the drive in the same way independently of the control mode being used; the remote keypad connection will vary as described below depending on the control mode. 3.1 Analog I/O configuration The following drive parameters will need to be configured via HVAC Connect or a temporary snap on keypad before the remote keypad will begin to function (as illustrated in Figure 3-1): Adjust Serial Baud Rate Pr = Adjust Serial Address Pr = 1 Adjust Serial Mode Pr = 8 2 NP Set Pr = 'On' (this parameter will then turn back to 'Off' automatically) Save the drive parameters Adjusting the drive parameters can be accomplished in one of three ways: 1. Temporarily use a clip on keypad to make the changes. 2. Download and install the HVAC Connect software to communicate with the drive via an optional USB-to-RJ485 adaptor. 3. Use a pre-configured smart card and adaptor to "clone" the drive parameters. The remote keypad can be connected to either of the RJ485 ports on the drive via a RJ45 cable. Alternatively, if none of the three the items above are available to make changes to the drive parameters, a KI-485 Adaptor can be purchased. This alternative method will allow the remote keypad to function without having to change ANY drive parameters. Refer to section 3.2 for additional details. Figure 3-1 Remote keypad via 485 port NOTE 4 RJ45 cable Snap on Keypad (optional) Remote Keypad (optional) The snap on keypad and the remote keypad can both be used simultaneously in this configuration. Or Keypad System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 13

14 3.2 Modbus configurations When the drive is configured for Modbus control mode, an OEM controller is communicating as the master to the drive. Subsequently, the optional remote keypad is also a 485 master device. And while the drive has two RJ485 ports, they make up a single 485 channel. Therefore the second 485 port cannot be used for any other reason except to "daisy chain" the OEM controller to additional drives if the application requires. Therefore, the only way to connect an optional remote keypad to the drive would be through the use of a KI-485 Adaptor (as illustrated in Figure 3-2). Figure 3-2 Remote keypad via KI-485 Adaptor Snap on Keypad (optional) OEM controller Or 4 KI-485 Adaptor RJ45 cable Remote Keypad (optional) One benefit of using the KI-485 Adaptor, in either analog / digital control mode or in Modbus control mode, is that no parameter changes are required before the remote keypad will function with the drive. 14 Quick Start Guide

15 3.3 Keypad shortcuts This section explains some of the time saving features that are built into the keypads The keypad's "user settings" menu While scrolling through the parameters, press the return button twice and hold on the last press for 1 second. This will allow the user to view the keypad settings such as: Language options Backlight level Keypad software version Date/time features (for keypads with RTC) To exit the keypad settings menu, press the return button The "1001" save Drive parameters are usually saved by entering into any Pr MM.000 and scrolling up to select "Save parameters". However, this save will only work when the drive is not in a tripped state. Commissioning a drive via 24V or bench testing a drive via 24V, for example, would both put the drive in an "Under Voltage" tripped state which will not allow for any modified parameters to be saved within the drive using the traditional save method. To save parameters while the drive is in any tripped state, use the following procedure. Position the keypad to any "zero" parameter (i.e. Pr MM.000); press enter. Press the left arrow three times and then press the up arrow once to enter a value of '1000'. Press the right arrow three times and then press the up arrow once to enter a value of '1001'. Press the red 'stop' button to save the drive parameters The "multi-press" functions Simultaneously pressing the left and right arrows while scrolling through the parameter menus will bring the keypad directly to menu 0 (i.e. Pr 00.PPP). Simultaneously pressing the up and down arrows while scrolling through the parameter menus will bring the keypad directly to parameter 0 within that menu (i.e. Pr MM.000). Example: Pressing the left and right arrows simultaneously and then subsequently pressing the up and down arrows simultaneously is the fastest way to return back to Pr Simultaneously pressing the up and down arrows while editing a parameter value will reset the value to zero The "go to parameter" If the security parameter Pr is set to 'all menus', then the quickest way to move to a parameter that would otherwise require many key presses to navigate to is: Hold in the enter key for 1 second Enter in a parameter of interest; press enter. Keypad System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 15

16 4 Parameters 4.1 Configuration control word parameter Pr , containing the configuration control word, is used to control the drive in both analog / digital control mode and in Modbus control mode. To allow for simple drive configurations in Modbus control mode, all drive and compressor functions are enabled/disabled using this single bitwise parameter: Pr Table 4-1 Pr {Pr } Bit Key to the Configuration Parameter (the first bit, aka. the least significant bit, is on the right side of the binary number): Name Function Default 0 (1 st ) Variable switching frequency 0: Disable, 1: Enable 0 (Disable) 1 (2 nd ) Single phase AC input detection 0: Disable, 1: Enable 0 (Disable) 2 (3 rd ) Short cycle protection 0: Enable, 1: Disable 0 (Enable) 3 (4 th ) Envelope control 0: Enable, 1: Disable 0 (Enable) 4 (5 th ) DLT Temperature unit 0: Fahrenheit, 1: Celsius 0 ( F) 5 (6 th ) Envelope Pressure unit 0: Psig, 1: Bar 0 (Psig) 6 (7 th ) Oil control 0: Enable, 1: Disable 0 (Enable) 7 (8 th ) Defrost cycle control 0: Disable, 1: Enable 0 (Disable) 8 (9 th ) Control source for Start/run and stator heater 0: From Terminal digital input 1: From Modbus or Keypad 0 (Digital) 9 (10 th ) DLT protection 0: Disable, 1: Enable 0 (Disable) 10 (11 th ) Locked rotor detection on start 0: Enable, 1: Disable 0 (Enable) 11 (12 th ) Reserved N/A N/A 12 (13 th ) Lost rotor ride-through protection 0: Enable, 1: Disable 0 (Enable) 13 (14 th ) DLT temperature source 0: From Modbus or Keypad, 1: From Terminal Analog Input 0 (From OEM) 14 (15 th ) Reserved N/A N/A 15 (16 th ) Reserved N/A N/A 16 Quick Start Guide

17 4.2 System control word parameter Pr , containing the system control word, is used to control the drive only in Modbus control mode. To allow for simple drive configurations in Modbus control mode, all drive and compressor functions are enabled/disabled using this single bitwise parameter: Pr Table 4-2 Key to the Control Parameter (the first bit, aka. the least significant bit, is on the right side of the binary number): Pr Bit Name Function Default 0 (1 st ) Start 1: Start 0: No action 0 1 (2 nd ) Controlled shutdown 1: Shutdown the compressor 0: No action 0 2 (3 rd ) Stator heating control 1: Turn on the stator heater 0: No action 0 3 (4 th ) Defrost cycle trigger 1: Trigger the defrost cycle on transition 0: No action 0 4 (5 th ) Reset trips if possible 1: Reset trips on transition 0: No action 0 5 (6 th ) Trip on communication loss 1: Enable the communication watchdog 0: No action 0 Bits 6 to 15 Reserved N/A N/A NOTE When the drive is configured for Modbus control mode (i.e. Pr bit 8=1), the compressor is started by setting Pr bit 1=1; the compressor will continue to run even if Pr bit 1 is set back to 0. The only way to enable the controlled shutdown sequence in Modbus control mode is to set Pr bit 2=1. Drive wiring System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 17

18 4.3 Menu 0 - compressor specific parameters Menu 0 is used to bring together all the compressor specific parameters for easy basic setup of the drive. All of the parameters in menu 0 appear in other menus in the drive (denoted by { }). Where control is via 485 serial communications, a MODBUS address is given for each parameter (assumes 32-bit access). Refer to section 6 of the Drive User Guide for additional details on Menu 0 parameters. Table 4-3 Menu 0 parameters Parameter Range Default Mapping Modbus address (hex) Enable conditions Software system state Condition alerts Condition warnings Trip/Lockout number Configuration control parameter System control word User speed reference in rpm Speed reference after envelope control Final Speed reference Speed feedback Stator heating control mode Condenser pressure (displayed in tenths of a unit) Evaporator pressure (displayed in tenths of a unit) DC Bus Voltage ±VM_DC_VOLTAGE V Drive output frequency ±VM_SPEED_FREQ_ REF Drive output voltage ±VM_AC_VOLTAGE V Drive output power ±VM_POWER kw Total Current ±VM_DRIVE_CURRENT_ UNIPOLAR A Torque producing current ±VM_DRIVE_CURRENT A Accumulated Energy kw ±99.99 kwh Accumulated Energy MW to MWh DLT (Discharge line temperature) Inverter temperature % DLT over temperature fault count Locked Rotor Failure start count Number of soft-start attempts Short cycle count Active EVC Drive trip number Quick Start Guide

19 Last trip time Last trip date Soft-start speed Soft start acceleration Soft-start dwell time Normal running acceleration Normal running deceleration Shut down deceleration Shutdown hold speed Controlled shutdown dwell time Stop deceleration Oil boost threshold speed Oil boost threshold time Oil boost acceleration rate Oil boost deceleration rate Oil boost speed {01.026} Oil boost solution time Oil Boost timer Stator heating wattage Skip Reference Skip reference band Skip Reference Skip reference band Skip Reference Skip reference band Defrost deceleration rate Defrost acceleration rate User defrost speed reference Defrost cycle end dwell time DLT check delay time Locked rotor Idle time Parameter Range Default Mapping Lost rotor ride-through dynamic threshold Modbus address (hex) Lost rotor ride-through constant threshold Short cycle limit Short cycle time Envelope Profile Selection Serial address Drive wiring System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 19

20 Serial mode Serial Baud rate 8 2 NP (0), 8 1 NP (1), 8 1 EP (2), 8 1 OP (3), 8 2 NP M (4), 8 1 NP M (5), 8 1 EP M (6), 8 1 OP M (7), 7 2 NP (8), 7 1 NP (9), 7 1 EP (10), 7 1 OP (11), 7 2 NP M (12), 7 1 NP M (13), 7 1 EP M (14), 7 1 OP M (15) 300 (0), 600 (1), 1200 (2), 2400 (3), 4800 (4), 9600 (5), (6), (7), (8), (9), (10) 8 2 NP (0) (6) Fieldbus Monitor trigger time Unassigned Clone parameters None (0), Read (1), Program (2), Auto (3), Boot (4) Reset comms Reset drive Running log of alerts entry number Running log alert ID number and days and hours Unassigned Security level Menu 0 (0), All Menus (1), Read-only Menu 0 (2), Read-only (3), Status Only (4), No Access (5) EVC Drive software version Out of envelope trip delay time Parameter Range Default Mapping Out of envelope trip delay time for low condensing at power up Modbus address (hex) NOTE All parameters have a 16 bit data size. Depending on the OEM controller being used, the controller might need to subtract '1' from the Modbus addresses listed above in order to access the intended parameter. 20 Quick Start Guide

21 5 PC Tools - HVAC Connect 5.1 Quick start commissioning / start-up using HVAC Drive Connect (V onwards) HVAC Drive Connect is a Windows based software commissioning / start-up tool. HVAC Drive Connect can be used for commissioning / start-up and monitoring, drive parameters can be uploaded, downloaded and compared and simple or custom menu listings can be created. Drive menus can be displayed in standard list format or as live block diagrams. HVAC Drive Connect is able to communicate with a single drive or a network. HVAC Drive Connect can be downloaded from: (file size approximately 100 MB). HVAC Drive Connect system requirements Windows 8, Windows 7 SP1, Windows Vista SP2, Windows XP SP3 Minimum of 1280 x 1024 screen resolution with 256 colours Microsoft.Net Frameworks 4.0 (this is provided in the downloaded file) Note that you must have administrator rights to install HVAC Drive Connect Any previous copy of HVAC Drive Connect should be uninstalled before proceeding with the installation (existing projects will not be lost). Included within HVAC Drive Connect is the Parameter Reference Guide for HVAC Drive Updating firmware If the drive has previously been installed and commissioned then apply the AC mains voltage to the drive. Alternatively the drive's control logic can be powered up out of the box using a 24 Vdc power supply. Refer to the Drive User Guide for additional information on connecting 24 Vdc to the drive. Once the drive has been powered up then start HVAC Drive Connect. Based on the available communication accessories available, select one of the two options below from the 'Project Management' screen to communicate with the drive. 1. Connect an optional USB-to-485 Adaptor to one of the open 485 ports on the drive. Select Scan serial RTU network. Note that no other device is permitted to actively use the other 485 port on the drive as a master. 2. Connect an optional SI-Ethernet option module to the drive and connect to a computer using an RJ45 cable. Select Scan Ethernet network Drive wiring System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 21

22 NOTE HVAC Connect can take up to 10 minutes to locate and connect to the drive. Once HVAC Drive Connect appears to have identified the drive, press the 'Online' icon to begin communicating with the drive. 22 Quick Start Guide

23 If required, obtain the most recent firmware for the drive model and place the file on the computer desktop. Click on the 'Change Firmware' icon from the Dashboard tab. Browse for the file with an '.img' file extension and select 'open'. Click on the 'Next' icon at the top-right corner of the window. Ensure that no power or communication connections are at risk of becoming disconnected and then click on "Start Download" to proceed with updating the drive firmware. Note that it could take approximately 8 to 10 minutes to upgrade the drive via 485; it should take less than 1 minute to upgrade the drive via the SI-Ethernet module. Once HVAC Drive Connect prompts that the upgrade is complete, close out of any messages that have popped up. At this point, HVAC Drive Connect may require the user to re-scan for the drive before communications can resume. Drive wiring System control Keypad Parameters PC Tools - HVAC Connect Quick Start Guide 23

24 5.1.2 Saving / Loading parameters Saving parameters from a drive can be useful for many reasons including the following: Creating a backup of non-default parameters prior to experimenting with parameter value adjustments. Creating a master parameter file that can be used to "clone" subsequent drives as a way to reduce commissioning time. To save a parameter set from the drive, click on the 'Upload to a file' icon and press save. To download a.parfile from a computer into a drive, click on the 'Download file to drive' icon and press open Viewing drive parameters To view the drive parameters, choose a menu by clicking the 'Parameter Listings' icon on the Dashboard tab. HVAC Drive Connect has some useful tools built in to the program. The drive parameters can be compared against the drive default values to show what parameter values have changed from defaults. Alternatively, the drive parameters can be compared against a.parfile located on a computer to show what drive parameter values have changed from the original file. 24 Quick Start Guide

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