Honeywell Class 500 Installation Instructions Manual
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Honeywell Class 500 Installation Instructions Manual

Honeywell Class 500 Installation Instructions Manual

Advanced kwh/demand meter
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Class 500 Advanced KWh/Demand
Meter
APPLICATION
The Class 500 Meter is a 3-element meter with communications. The device is used to monitor electric power usage of individual
loads after the utility meter. Installation must only be performed by qualified personnel and in accordance with these
instructions and all applicable local and national electrical codes.
INSTALLATION INSTRUCTIONS
62-0304-05

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Summary of Contents for Honeywell Class 500

  • Page 1 APPLICATION The Class 500 Meter is a 3-element meter with communications. The device is used to monitor electric power usage of individual loads after the utility meter. Installation must only be performed by qualified personnel and in accordance with these instructions and all applicable local and national electrical codes.

  • Page 2: Specifications

    CLASS 500 ADVANCED KWH/DEMAND METER SPECIFICATIONS Input Voltage Configuration: Outdoor Housing Rating (Model numbers with an R at the 3-wire (Delta) or 4-wire (WYE) end): NEMA 4 Mains Voltage Input: Up to 600 VAC RMS available Indoor Housing Rating (Model numbers without an R at...

  • Page 3: Installation

    Meters labeled for 115/208 volt service MUST NOT be installed on service feeds of 277/480 volt and vice versa. VERIFY that the Class 500 Meter current sensors are sized suitably for the load to be monitored. Compare the color of the arrows on the current sensors to the chart below to confirm the correct current sensor is being used.

  • Page 4: Meter Installation

    RS485 connections are not required. The display board LCD readout indicates the cumulative kWh value as well as errors associated with the Class 500 Meter, such as low battery or sensor errors. METER INSTALLATION Mounting 1.
  • Page 5 5. External switch mechanism/in-line fuse installation: a. To ensure a safe installation, the Class 500 Meter requires an external switch mechanism, such as a circuit breaker, be installed to the Class 500 Meter MAINS input wiring. The switch mechanism must be installed in close proximity to the Class 500 Meter and be easily reachable for the operator.
  • Page 6 Once all the current sensors are installed onto their appropriate phase conductors, you can begin terminating the current sensors onto the Class 500 Meter main board. The current sensor leads can be extended up to 500 feet for remote monitoring applications. To extend the length of the wires, use #22 AWG twisted pair wire with a black and white conductor, rated for 600 VAC.
  • Page 7 CLASS 500 ADVANCED KWH/DEMAND METER ETHERNET BOARD M28748A Fig. 7. Location of LED D5 (labeled “MTR”) and Ethernet board. Verify that the AC MAINS voltage wires are all connected to the correct positions on terminal block TB1. Inspect the MAINS input wiring to verify each conductor is terminated at the correct terminal block position.
  • Page 8 The meters are networked in a daisy-chain configuration with BELDEN 1120A cable or an equivalent. A cable rating of 600V allows a RS-485 network to be connected to 480-volt meters. Communications wiring should enter/exit the Class 500 Meter enclosure through the 1/2 in. hole located on the upper (top) surface of the enclosure using a 4-conductor, UL-approved telephone cord terminated with an RJ-11 male connector.
  • Page 9 Fig. 10. Modbus installation overview. METHOD 1: DAISY-CHAIN WITH WIRE TERMINAL (MOST COMMON METHOD) 1. Connect the “HI” terminal (Display PCB J3 Pin 1) of each Class 500 unit together so that all unit Hl terminals are linked (Hl to Hl to Hl, etc.).
  • Page 10 3. All locations being monitored must have the same power source. A 480 volt Class 500 Meter, for example, cannot monitor a 208 volt load circuit nor can a Class 500 Meter monitor two 480 or 208 volt loads if they are from different originating power sources or from different transformers.
  • Page 11 NOTE: One set of current sensors equates to three sensors, one per phase. The multiplier only applies when extra sets of cur- rent sensors are installed on one Class 500 Meter. Therefore, if you are using only one set of three current sensors, the multiplier is not required.

  • Page 12: Maintenance

    Lithium Battery Replacement Instructions The Class 500 Meter has a lithium battery cell that is used to retain the contents of SRAM and the RTC during power outages. The battery has a life expectancy greater than 8 years (See Table 3 for battery specifications).

  • Page 13: External Contact Input

    These consist of removable plug and header assemblies similar to the current sensor inputs. The external device can be mounted up to 100 feet away from the Class 500 Meter, and wire sizes from 24 to 16 gauge (AWG) can be used for the connection. If the external device utilizes a polarity-dependent, solid-state contact, the plus (+) from the contact must terminate on the left hand pin of the headers on the Meter.
  • Page 14 CLASS 500 ADVANCED KWH/DEMAND METER Modbus Point Map Modbus data points available from the Class 500 meter. Listed under Class 500. Table 4. Honeywell Modbus point map INTEGER W FLOAT CALC. DESCRIPTION CLASS 500 40001 2 41001 T-del Energy delivered...
  • Page 15 8 504D 324B 0106 0421 0800 454D 4F4E 2020 Firmware version: PM 5K, Ver, Ver date/time, Honeywell 46009 8 456E 6572 6779 204D 6574 6572 0000 0000 Device description: Honeywell Energy Meter 46017 8 1356 4503 0613 0300 0000 0000 0000 0000...

  • Page 16: Frequently Asked Questions

    Q. Can the Class 500 Meter line voltage wires be run in the same conduit as the sensor leads? A. Yes, there will be no effect on the Class 500 Meter if the sensor leads and line voltage wires are run in the same conduit.

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