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CPC 485 Installation And Operation Manual

Peripherals
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026-1701 Rev 0 01-05-98
CPC Peripherals
Installation and
Operation

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Summary of Contents for CPC 485

  • Page 1 026-1701 Rev 0 01-05-98 CPC Peripherals Installation and Operation...
  • Page 3 Computer Process Controls, Inc. 1640 Airport Road Suite #104 Kennesaw, GA 31044 Phone (770) 425-2724 Fax (770) 425-9319 ALL RIGHTS RESERVED The information contained in this manual has been carefully checked and is believed to be accurate. However, Computer Process Controls, Inc. assumes no responsibility for any inaccuracies that may be contained herein.

  • Page 5: Table Of Contents

    Table of Contents INTRODUCTION................................1 485 ALARM PANEL ................................ 3 ................................... 3 VERVIEW Features ..................................3 ..................................3 NSTALLATION Mounting ..................................3 Power Wiring .................................. 4 Power Jumpers................................4 Network Wiring ................................4 Network Terminating Resistance Jumpers........................4 Device ID Numbering ..............................4 Baud Rate..................................
  • Page 6 Other Environmental Management Systems ......................... 17 DEW CELL DEW POINT PROBE (P/N 203-1902) ....................19 ..................................19 VERVIEW ..................................19 OUNTING ....................................19 IRING ................................20 OFTWARE ETUP Input Board and Point Configuration ........................... 20 Sensor Control Setup..............................20 LIGHT LEVEL SENSOR (P/N 206-0002)........................21 ..................................
  • Page 7 ..................................37 VERVIEW ..................................37 ESCRIPTION Installation ..................................38 ............................... 38 OFTWARE EQUIREMENTS TEMPERATURE SENSORS ............................39 ..................................39 VERVIEW ............................... 39 OUNTING AND OCATION Inside Temp Sensor ............................... 39 Outside (Ambient) Temperature Sensor........................40 Temperature Probe for Duct and Walk-In Box......................40 Insertion and Immersion Probes...........................

  • Page 9: Introduction

    Introduction This manual describes how to wire and configure various peripheral devices that are commonly used with CPC control networks. Each section gives a brief overview of the device and provides device specifications. Sections also include in- formation on installing (mounting and wiring) and configuring the device within the proper CPC controller (RMCC, BCU, BEC).

  • Page 11: 485 Alarm Panel

    25-pin parallel printer interface port. CPC uses the 485 Alarm Panel (Figure 1) to accom- Installation plish this task. The 485 Alarm Panel is linked to all RE- FLECS Controllers through the RS485 COM B Host Mounting Network. Although the alarm panel has many features that...

  • Page 12: Power Wiring

    Figure 2 shows the enclosure dimensions and weight. Figure 3 - COM B Wiring - REFLECS to 485 Alarm Panel Using the RED wire, connect the positive ter- minal (+) on the alarm panel to the positive (+) terminal on COM B.

  • Page 13: Baud Rate

    Table 1 - 485 Alarm Panel Dip Switch Settings Baud Rate Rockers 6 and 7 on switch SW2 on the 485 Alarm Panel determines the baud rate at which alarm messages will be received across the COM B network. The 485 Alarm Panel can only communicate at 4800 baud;...

  • Page 14: Setting The Clock

    Setting the Clock Press and release the Reset button on the front panel. To set the 485 Alarm Panel’s on-board clock: Use the arrow buttons to select the month. Be sure that the display shows NO Quickly press and release the Reset button.

  • Page 15: Operation

    During this mode of operation, users may view the previ- • Check for loose cable connections at both the ous 20 alarm messages in the 485 Panel’s log by using the RS485 NETWORK terminals on the 485 Alarm UP and DOWN arrow keys (see “Displaying Alarms” for Panel and the REFLECS COM B terminal(s).

  • Page 17: Rs232 Bus Amplifier (P/N 812-1800)

    The RS232 Bus Amplifier (P/N 812-1800), shown in same wall outlet as the modem and local terminal. The Figure 5, is used to connect CPC products together as an RS232 Bus amplifier may be powered by 120 volts or 208 integrated communications system.

  • Page 18: System Connections

    In general, the RS232 Bus Amplifier will be installed in isting refrigeration system in a variety of ways depending close proximity to the CPC controllers, modem, and local upon the relative proximity of the compressor racks, other computer terminal. Figure 6 shows this layout.

  • Page 19: System Description

    System Data From Lights The red SYSTEM DATA FROM light, shown in Figure 4, flashes when data are being received from a CPC con- troller or additional Bus amplifier. If no data are being re- ceived, the green light remains illuminated. These lights are associated with the TX input of each SYSTEM PORT.

  • Page 20: System Override Buttons

    The TERMINAL TO MODEM button, shown in Fig- ure 9, allows the user to disconnect the modem and local terminal from the CPC controllers. By pressing the TER- MINAL TO MODEM button, the user can either program the modem or communicate with another computer termi- nal.

  • Page 21: Modem (P/N 370-9600)

    Modem (P/N 370-9600) If a CPC bus amplifier is used in the network, the 535- 1015 cable is not used (see RS232 Bus Amplifier (P/N 812- 1800) on page 9). Figure 10 - COM C Network Connection Software Setup All newer versions of REFLECS software (RMCC, BEC, and BCU) are preset to use this modem without any additional setup.

  • Page 23: Checkit Refrigeration System Monitor (P/N 508-2000)

    Checkit Refrigeration System Monitor (P/N 508-2000) • Works with conventional or parallel systems • Maintenance-free • Protects against product and refrigerant loss • Detects refrigerant loss from any part of the sys- Installation Location Checkit should be installed in a convenient location on a horizontal liquid line, preferably between the liquid re- ceiver and the evaporator.

  • Page 24: Set-Up

    After the vessel and refrigeration line have cooled completely, apply Wakefield Thermal Before monitoring of the Checkit sensor by the RMCC Joint Compound #120-5 (CPC P/N 020- can begin, the location of the Checkit sensor must be iden- 7120) or equivalent on the sensor and re-in- tified.

  • Page 25: Other Environmental Management Systems

    =PREV ->=SET-DATA 0=MENU SELECT NUMBER 0=MENU systems. Contact CPC concerning specific setup informa- tion for non-RMCC units. Alarm Setpoint/Notice Setpoint The Checkit sensor continuously monitors the refriger- ation system for a temperature increase indicating low liq- uid levels within the system. The RMCC may be configured to generate an alarm and/or a notice when the measured Checkit temperature rises to a defined value.

  • Page 27: Dew Cell Dew Point Probe (P/N 203-1902)

    Dew Cell Dew Point Probe (P/N 203-1902) Overview The dew cell dew point probe can be used to monitor Figure 15 -Dew Cell Dew Point Probe Mounting the dew point of a particular area. The probe should be Wiring mounted in a relatively dust free area with the probe in an “up”...

  • Page 28: Software Setup

    CPC (P/N 203- 1925). 9 10 11 12 13 14 15 16 POWER INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT AC1 0V AC2 +485 16AI -485 INPUT INPUT INPUT INPUT...

  • Page 29: Light Level Sensor (P/N 206-0002)

    Light Level Sensor (P/N 206-0002) Overview CPC stocks a low voltage light sensor designed to pro- vide input to 16AI boards. The light level sensor provides the controllers with information that allows controllers to switch lights on or off, or provide continuous signals to Figure 17 - Light Level Sensor Mounting electronic dimming ballasts for fluorescent fixtures.

  • Page 30: Software Setup

    9 10 11 12 13 14 15 16 POWER INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT AC1 0V AC2 +485 16AI -485 INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT S3 NETWORK 17 18 19 20 21 22 23 24...

  • Page 31: Indoor Relative Humidity Sensor (P/N 203-5750)

    Indoor Relative Humidity Sensor (P/N 203-5750) Mount the sensor as follows: Remove the two screws from the sides of the enclosure, and remove the cover. Mount the sensor to the wall using the two mounting holes near the flattened corners of the mounting plate (as shown in Figure 19).

  • Page 32: Software Setup

    Figure 20 - Relative Humidity Sensor Wiring Software Setup Input Board and Point Configuration Set up the relative humidity sensor by assigning the board and point address to the appropriate input. Refer to the REFLECS Installation and Operation Manual for more information.

  • Page 33: Outdoor Relative Humidity Sensor (P/N 203-5760)

    Outdoor Relative Humidity Sensor (P/N 203-5760) Overview The outdoor relative humidity sensor (P/N 203-5760) comes in a weather-proof enclosure designed to be mount- " !´ ''(Ãp€ ed on an outside wall. The sensing element for the outdoor humidity sensor is a General Eastern bulk resistance type sensor.

  • Page 34: Software Setup

    Figure 22 - Relative Humidity Sensor Wiring Software Setup Input Board and Point Configuration Set up the relative humidity sensor by assigning the board and point address to the appropriate input. Refer to the REFLECS Installation and Operation Manual for more information.

  • Page 35: Refrigerant Transducer (P/N 809-1550)

    When refrigerant is detected, the RT High Sensitivity R-113, R-22, R134a, R-22, sends a signal to a 16AI input board, and to a CPC control- R-12, R-11 R-12 ler such as the Building Environmental Control (BEC) or Refrigeration Monitor and Case Control (RMCC).

  • Page 36: Location

    Remount the board using the two mount volts. If more than one transducer per 16AI board is to be screws. installed, connect the RTs to CPC Power Supply (P/N 258- 1000). After wiring, replace the protective cover and set screws.
  • Page 37 Cut off the shield at the transducer and ground at either a ground lug or an odd termi- nal on the 16AI board. Set the corresponding 16AI Input Type Dip Switch to the DOWN position, as shown in Figure 24. Figure 24 - Single Refrigerant Transducer Layout Multiple Refrigerant Transducers Layout Connect the refrigerant transducers to the 16AI input...
  • Page 38 Attach the white wire to the OUT terminal of each of the RTs and an even terminal on the Ground the negative output of the power sup- 16AI board input connections. ply to one of the odd terminals of the 16AI in- Attach the red wire to the +V terminal of each put connections.

  • Page 39: System Description

    =PREV =NEXT ->=SET-DATA 0=MENU controller then sends a signal to the 485 alarm and writes an alarm or notice to the alarm log within the CPC control- ler. In order for the CPC controller and refrigerant trans- Once on-line, the RT may generate small ambient read- ducer to interact, the CPC controller must be configured to ings that do not constitute an actual refrigerant leak.
  • Page 40 Output Definitions OUTPUT DEFINITIONS 12:00 Output Bd Pt Output Bd Pt CMP01 00 00 CMP02 00 00 CMP03 00 00 CMP04 00 00 CMP05 00 00 CMP06 00 00 CMP07 00 00 CMP08 00 00 =PREV =NEXT ->=SET-DATA 0=MENU The fan’s output board and point address will need to be assigned to a sensor control output (SEN CTL 01 - SEN CTL 48).

  • Page 41: Eclipse Pressure Transducers

    ® ® Table 8-Specifications for Eclipse Pressure Transducers CPC supplies Eclipse Pressure Transducers for use in some refrigeration control systems. All 100, 200, and 500 Description PSIG pressure transducers ordered for use with RMCC sys- ®...

  • Page 42: Mounting

    ® plied. In addition, the Eclipse pressure transducer is The Eclipse pressure transducer can safely handle an compatible with ammonia. applied vacuum. With the Eclipse, there is no need to re- move or valve off the transducer before a vacuum is ap- Pressure in PSIG 0 to 100 PSIG 0 to 200 PSIG...

  • Page 43: Software Requirements For Eclipse Pressure Transducers

    WHITE (TO EVEN #) STANDRD). INPUT CONNECTIONS To choose Eclipse or Standard transducers using Ultra- Site (v. 2.00 - 2.04), contact CPC for assistance. All other REFLECS controllers use standard pressure transducers. 16AI BOARD See “Standard Pressure Transducers,” page 37.

  • Page 45: Standard Pressure Transducers

    Table 10 lists the part numbers for the 100, 200, and 500 lb. pressure transducers along with pressure/voltage Description ranges for each CPC standard pressure transducer type. Computer Process Controls pressure transducer is a Standard pressure transducers should be mounted in a...

  • Page 46: Installation

    Each pressure transducer is supplied with 20 feet of ca- ble for connection to a 16AI input board. Table 11 shows the corresponding output voltage for each transducer. Pressure in PSIG Output Voltage (VDC) 0-100 PSIG Standard 0-200 PSIG Standard 0-500 PSIG Standard Transducer Transducer...

  • Page 47: Temperature Sensors

    8-inch stainless steel im- mersion temp probe Overview 201-2009 8-inch stainless steel in- CPC supplies a variety of temperature sensors for use in sertion temp probe a number of different applications. Most temperature sen- High-Temp 201-5000 32° to 300° F (0° to 150°...

  • Page 48: Outside (Ambient) Temperature Sensor

    The temperature sensor may be mounted using a rub- be used to monitor temperature. Insertion probes are for use ber-lined tubing clamp. CPC also offers an aluminum cov- in ducts and are not to be used with liquids. The immersion...

  • Page 49: Pipe Mount Sensors

    Supply and Return Air Sensors CPC uses the same temperature sensor used for outside and inside temperature to monitor supply and return air temperatures in HVAC applications. When used in this ap- plication, the sensors are supplied without enclosure cov- ers.

  • Page 51: Refrigerant Liquid Level Sensor (P/N 207-0100)

    Refrigerant Liquid Level Sensor (P/N 207-0100) Figure 34-Wiring Diagram for Refrigerant Liquid Level Sensor If extending the cable is required, use a Overview shielded cable with three conductors such as Belden #8771 or Belden #9363. Ground the The LA100SD-U Refrigerant Liquid Level Sensor is shield to the same odd 16AI terminal as the designed to be used as a tank-mounted sensor.

  • Page 53: Refrigerant Level Transducer Probe (P/N 207-1000)

    RMCC for the RLT probe, go The RLT probe must be ordered with the correct im- to Sensor Setup and select the sensor number mersion length for your receiver. Contact CPC for assis- of the RLT probe. In the type field, scroll tance.

  • Page 55: Transformers

    10 Board–P/N 640-0048 Overview CPC supplies three different types of transformers for use in powering CPC input and output boards: the three- board transformer (P/N 640-0043), the six-board trans- former (P/N 640-0045), and the ten-board transformer (640-0048). As the names imply, each transformer is de- signed to power three, six, or ten I/O boards.

  • Page 56: Matching Transformers To Boards

    Power requirements for each board on the RMCC network are listed in Table 13. Power Requirements Each board used has specific power requirements. These requirements determine how many boards may be 16AI ARTC/8IO 485 Alarm Amps 0.25 0.75 0.75 0.1 / 0.05 15.0 10.0...

  • Page 57: Wiring The 16Ai, 8Ro, 4Ao, Or 8Do

    PINOUT 110 VAC 208 VAC FOR 208 VAC POWER SOURCE FOR 110 VAC POWER SOURCE 26513001 Figure 36 - Wiring for 640-0043, Three Board, and 640-0045, Six Board Transformer Figure 38-Wiring for Three 16AIs, 8ROs, 4AOs, or 8DOs or Any Combination of Wiring the 8IO Board Figure 37 - Wiring for 640-0048, Ten Board Transformer...
  • Page 58 On a 24 V AC line with the ground in the sys- tem on either side of the power line or with no ground in the system at all (Figure 41) Figure 39-Single 8IO Board Wired to One Transformer When the 8IO board is used by itself, it is satisfactory to wire the board with no grounding on either side of the 24 V AC power supply.
  • Page 59 When the 8IO is wired alone, either or neither side of the power supply may be grounded however, a separate Earth ground should be made off of the center terminal of the power connection. Figure 41-One 8IO with a Ground on Either Side of the Power Supply and One 8IO with no Ground in the System Peripherals Manual Transformers •...

  • Page 61: Sail Switches

    The Honeywell S637A Sail Switch (CPC P/N 205- 0637) can be wired so that it will relay two different states to a 16AI or other CPC input board. Only one state can be sent to the input board at anytime. The S437A can only re- lay one state.

  • Page 62: S437A

    A and B terminals (Figure 42). Run each wire to Figure 43-S637A Switch Connection for Signaling When Airflow an available point on a CPC input board. is Present To wire the sail switch so that it sends a signal...

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