550 Analog Input Hardware Manual CONTROL MICROSYSTEMS SCADA products... for the distance Steacie Drive Telephone: 63-59-93 Kanata, Ontario Facsimile: 63-59-0 KK A9 Technical Support: -6-676 Canada -CONTROL
550 Analog Input Hardware Manual 000-005 Control Microsystems Inc. All rights reserved. Printed in Canada. Trademarks TeleSAFE, TelePACE, SmartWIRE, SCADAPack, TeleSAFE Micro6 and TeleBUS are registered trademarks of Control Microsystems Inc. All other product names are copyright and registered trademarks or trade names of their respective owners. Material used in the User and Reference manual section titled SCADAServer OLE Automation Reference is distributed under license from the OPC Foundation. 550 Analog Input Hardware Manual October 9, 007
Table of Contents OVERVIEW... 3 IMPORTANT SAFETY INFORMATION... 3 INSTALLATION... 5 3. Field Wiring... 5 3. Address Selection... 7 3.3 Input Offset Selection... OPERATION AND MAINTENANCE... 9. Data Format... 9.. 0% Input Offset... 9.. 0% Input Offset... 9. Maintenance... 0.3 Troubleshooting... 0. Calibration... 0 5 SPECIFICATIONS... 6 APPROVALS AND CERTIFICATIONS... 3 Index of Figures Figure : 550 Typical 0mA Field Wiring... 6 Figure : 550 Typical 5 Volt Field Wiring... 6 Figure 3: 550 Analog Input Address Switches... 7 Figure : 550 Input Offset Switches... 550 Analog Input Hardware Manual October 9, 007
Overview The model 550 analog input module adds eight analog inputs to the 5000 Series input/output system. Up to sixteen model 550 modules may be connected to the I/O bus, for a total of analog inputs per I/O bus. These inputs are used with devices such as pressure, level, flow, and temperature transmitters; instrumentation such as ph and conductivity sensors; and other high-level analog signal sources. The 550 module is configured for either 0mA current loop or 5 volt operation. The current loop has 50 ohm current sense resistors on the inputs. It is otherwise identical to the voltage module. DIP switches enable or disable a 0% input offset. The module measures 0 to 0mA or 0 to 5 V signals with the offset disabled. The module measures to 0mA or to 5 V signals with the offset enabled. The 550 module uses a bit successive approximation analog to digital (A/D) converter. A single chip microcontroller with integral watchdog timer operates the A/D and communicates over the I/O bus. All inputs are transient protected and optically isolated from the main logic power. The inputs are single ended. They share a common return. 550 Analog Input Hardware Manual October 9, 007 3
Important Safety Information Power, input and output (i/o) wiring must be in accordance with Class I, Division wiring methods Article 50- (b) of the National Electrical Code, NFPA 70 for installations in the U.S., or as specified in Section -J of the Canadian Electrical Code for installations within Canada and in accordance with the authority having jurisdiction. WARNING! EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS, DIVISION. WARNING! EXPLOSION HAZARD WHEN IN HAZARDOUS LOCATIONS, TURN OFF POWER BEFORE REPLACING OR WIRING MODULES. WARNING! EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NONHAZARDOUS. 550 Analog Input Hardware Manual October 9, 007
3 Installation The installation of the 550 module requires mounting the module on the 7.5mm by 35mm DIN rail and connecting the module to the system I/O Bus. Refer to the System Configuration Guide, at the beginning of this manual, for complete information on system layout, I/O Bus cable routing and module installation. 3. Field Wiring The 550 module provides eight single ended analog inputs. All inputs share a common return (SIG COM). Controller, modem and I/O modules use screw termination style connectors for termination of field wiring. They accommodate solid or stranded wires from to AWG. The connectors are removable. This allows module replacement without disturbing the field wiring. Leave enough slack in the wiring for the connector to be removed. CAUTION: To remove the connector: Remove power before servicing unit. Pull the connector upward from the board. Apply even pressure to both ends of the connector. To install the connector: Line up the pins on the module with the holes in the connector. Make sure all the pins line up properly. Push the connector onto the pins. Apply even pressure to both ends on the connector. Connect an external -30V DC power supply to the Power Input terminals. This is to power the isolated analog input circuits. 5V power required for the digital circuitry is available on the I C bus. Refer to the specifications for details. The 0mA version supports loop powered and self-powered transmitters. Loop powered transmitters connect between the + volts and the analog input. The loop current continues to the volt return through a 50 ohm resistor built into the 0mA input circuit. Self-powered transmitters connect to the analog input and to SIG COM. Figure : 550 Typical 0mA Field Wiring shows how to wire these transmitters. 550 Analog Input Hardware Manual October 9, 007 5
Volt Input + SIG 0 3 COM 5 6 7 3 5 6 7 9 0 SIG COM Current Sense Resistors + + V Supply + + V Supply wire loop powered transmitter shown on Input Self powered transmitter shown on Input 6 Figure : 550 Typical 0mA Field Wiring The 5 volt version is identical to the 0mA version except that the 50 ohm input resistors are not installed. 5 volt signals connect from the analog input to SIG COM. Figure : 550 Typical 5 Volt Field Wiring shows how to wire 5 volt inputs. Volt Input + SIG 0 3 COM 5 6 7 3 5 6 7 9 0 SIG COM + V Supply 5 Volt transmitter shown on Input 6 + Figure : 550 Typical 5 Volt Field Wiring 550 Analog Input Hardware Manual October 9, 007 6
3. Address Selection The 5000 Series I/O bus will support a maximum of forty I/O (input/output) modules. 5000 Series I/O module types may be combined in any manner to the maximum supported by the controller used. The types of input and output modules available are: Digital Input modules Digital Output modules Analog Input modules Analog Output modules Counter Input modules Each type of I/O module, connected to the I/O bus, must have a unique I/O module address. Different types of I/O modules may have the same module address. The address range supported by the SmartWIRE, SCADAPack or TeleSAFE Micro6 controller module may restrict the I/O module address range. Refer to the controller manual for the maximum address supported. Four address switches labeled,, and set the module address. To set the address: Open all four switches by pressing down the left side of the switch. Close the switches that total to the desired address. Figure 3: 550 Analog Input Address Switches shows the switch setting for each of the 6 module addresses. 0 3 5 6 7 9 0 3 5 How to Set Switches Determine the module address. Press the side of the switches shown in gray above. Press this side to ignore switch value Press this side to add switch value Figure 3: 550 Analog Input Address Switches 550 Analog Input Hardware Manual October 9, 007 7
3.3 Input Offset Selection The 550 module can apply 0% input offset to the signals measured. With the offset enabled, the module reads -0mA signals or -5 V signals. With the offset disabled the module reads 0-0mA signals or 0-5 V signals. To enable the 0% offset: Open the two switches labeled 0% by pressing down the left side of the switches. Close the two switches labeled 0% by pressing down the right side of the switches. To disable the 0% offset (and select 0% offset): Open the two switches labeled 0% by pressing down the left side of the switches. Close the two switches labeled 0% by pressing down the right side of the switches. Figure : 550 Input Offset Switches shows the switch settings for enabling and disabling the offset. 0% Input Offset 0% Input Offset How to Set Offset Switches Determine the desired offset Press the side of the switches shown in gray. 0% Offset 0% Offset 0% Offset 0% Offset Press this side to disable switch function Press this side to enable switch function Figure : 550 Input Offset Switches 550 Analog Input Hardware Manual October 9, 007
Operation and Maintenance. Data Format 5000 Series analog input and output modules use 6 bit signed numbers (5 bits plus sign). s with less than 6 bit resolution normalize the data into the 6 bit format. The 550 module has a bit, unipolar, analog to digital (A/D) converter. There are 096 A/D counts in the input signal range. The module can be configured to use 0% or 0% input offset. The input resolution is better with the 0% input offset, due to the smaller input range... 0% Input Offset The 0% input offset configuration measures 0-0mA or 0-5V signals. The input resolution is:.ua/count on 0mA version.mv/count on the 5 V version The table below shows the A/D output value for several input signals... 0% Input Offset Current(mA) Voltage(V) A/D Output 0 0 0 5.5 9 0.5 63 5 3.75 576 9.995.999 3760 The 0% input offset configuration measures -0mA or -5V signals. The input resolution is: 3.9uA/count on the 0mA version 0.976mV/count on the 5 V version The table below shows the A/D output value for several input signals. Current(mA) Voltage(V) A/D Output < < 0 0 9 3 63 6 576 9.996.999 3760 550 Analog Input Hardware Manual October 9, 007 9
. Maintenance This module requires no routine maintenance. If the module is not functioning correctly, contact Control Microsystems Technical Support for more information and instructions for returning the module for repair..3 Troubleshooting Problem 0mA inputs always read 0. Reading is at or near 0 for all input signals. Reading is constant. 0mA readings are not accurate. Action Check transmitter power. Check if the input transient suppressers are damaged. Check that the analog input is not forced. Check for a damaged 50 current sense resistor.. Calibration The 550 module is calibrated and burned in at the factory. It does not require periodic calibration. Calibration may be necessary if the module has been repaired as a result of damage. There are three potentiometers for calibration of the analog inputs. The 5V ADJ. potentiometer (R5) adjusts the gain in the 0% offset configuration. The V ADJ. potentiometer (R9) adjusts the gain in the 0% offset configuration. The V ADJ. potentiometer (R9) adjusts the zero in the 0% offset configuration. Adjustment of the zero in the 0% offset configuration is not necessary. Calibration requires that you read the converted value from the module using a communication or SCADA controller module. Refer to the controller module manual for details. To calibrate the module:. Apply input signals to as many channels as possible.. Measure voltage between U, pin 6 and U, pin. Adjust the 5V ADJ. potentiometer for 5.000 V. 3. Measure voltage between U3, pin and U, pin. Adjust the V ADJ. potentiometer for.000 V.. Measure voltage between U3, pin 7 and U, pin. Adjust the V ADJ. potentiometer for.000 V. 5. Set offset dip-switches to 0%. Close both 0% dip-switches (press down on the right). Open both 0% dip-switches (press down on the left). 6. Apply.99 V (for 5 V version) or 9.993mA (for 0mA version). 7. Read the converted signal from the communication controller. Adjust the 5V ADJ. potentiometer for readings that alternate between 375 and 3760 on all channels.. Set offset dip-switches to 0%. Close both 0% dip-switches (press down on the right). Open both 0% dip-switches (press down on the left). 9. Apply.0005 V (for 5 V versions) or.00ma (for 0mA version). 550 Analog Input Hardware Manual October 9, 007 0
0. Read the converted signal from the communication controller. Adjust the V ADJ. potentiometer for readings that alternate between 0 and on all channels.. Apply.995 V (for 5 V versions) or 9.99mA (for 0mA version).. Read the converted signal from the communication controller. Adjust the V ADJ. potentiometer for readings that alternate between 375 and 3760 on all channels. 3. Repeat steps through if necessary. 550 Analog Input Hardware Manual October 9, 007
5 Specifications Disclaimer: Control Microsystems reserves the right to change product specifications without notice. For more information visit www.controlmicrosystems.com. Input Points Resolution Input Resistance Converter type Accuracy Input Offset Type Normal mode rejection Over-scale Input Capacity (without damage) Isolation Reading Update Time Response Time Power Requirements Terminations Dimensions Mounting Packaging Environment bits 00k nominal for 5V inputs 50 for 0mA inputs Successive approximation +/ 0.% of full scale at 5 o C (77ºF) +/ 0.% of full scale over temperature range DIP switch configurable for 0% offset Single ended 60dB at 50 / 60 Hz. Continuous: 60% over scale sustained input signal. 0.5A maximum current and.v maximum voltage. Transient:.5kV surge withstand capability as per ANSI/IEEE C37.90.-99 500VAC from the logic power 00ms 0ms typical for 0% to 90% signal change 5V at 0mA to V at 0mA (loop power extra at 0mA maximum per loop) pole, removable terminal block to AWG 5 amp contacts.5 inch (0mm) wide.65 inch (mm) high.75 inch (mm) deep 7.5 x 35 DIN rail Corrosion resistant zinc plated steel with black enamel paint 5% RH to 95% RH, non-condensing 0 o C to 60 o C 0 o F to 0 o F 550 Analog Input Hardware Manual October 9, 007
6 Approvals and Certifications Safety Non-Incendive Electrical Equipment for Use in Class I, Division Groups A, B, C and D Hazardous Locations. 550 Analog Input Hardware Manual October 9, 007 3