Summary of Contents for Combined Energy CET-HD-PM2-1
- Page 1 Power Meter CET-HD-PM2-1 Product User Manual CET-HD-PM2-1 Power Meter User Manual (V9)
-
Page 2: Table Of Contents
RS485 Serial Connection Installation RS485 Filter for Goodwe DNS, TDS, ES G2 (ES-20) Inverters External Contactor Control using TRIAC output Compatible Contactors Installation Instructions CT Harness and CT Bundles CT Bundle Labelling Meter Configuration Button Identify Blink CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 3: Safety Notices
4. This device should be installed by technically qualified personnel. Failure to install in compliance with national and local electrical codes and according to recommendations provided by Combined Energy Technologies may result in electrical shock or fire hazard, unsatisfactory performance, or equipment failure. -
Page 4: Compliance With Local Wiring Rules And Network Requirements
AS/NZS 3000 (latest version) must also be adhered to. Note: When calculating “highest voltage present” as defined in AS/NZS 3000, in 3 phase installations the highest voltage present is across phases and hence greater than that of a single phase installation. CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 5: Introduction
Introduction The CET-HD-PM2 Power Meter (“PM2”) is a three-phase six-channel power meter and load controller for use in Combined Energy home energy management systems. The CET-HD-PM2 accepts up to six clip-on current transformers (CTs) for monitoring net energy flow to the site in addition to solar inverters and other loads of interest. -
Page 6: Technical Specifications
Operating Temperature Range: 0C to +50C IP Rating: IP56 (when installed according to the instructions in this User Manual) Standards: ● IEC 60950-1, AS/NZS 60950-1 - Information Technology Directive ● EN 50561-1 – Electromagnetic Compatibility for PLC products CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 7: Product Features
○ Standard ratings of 60A, 120A and 200A with 3 CTs per Bundle ○ Larger CT Bundles rated to 400A, 800A and 1200A available on request ● Combined Energy CT Harness (required to connect CT Bundles to Power Meter) ○ Available in 0.5m and 3m lengths... -
Page 8: Installation Guide
The following is an example wiring diagram for a typical single-phase installation: The CET-HD-PM2-1 must be protected by an upstream protection device (or a combination of devices) with a trip current of 32A or less and an earth-leakage trip current of 30mA or less. -
Page 9: Three-Phase System
CET-HD-PM2-1, in addition to the Neutral and Earth connections. The CET-HD-PM2-1 must be protected by an upstream protection device (or a combination of devices) with a trip current of 32A or less and an earth-leakage trip current of 30mA or less. -
Page 10: Mount The Enclosure Base
2. If the product is installed outdoors, all conduit ports (including unused ports) and mounting screw positions must be sealed with silicone adhesive or PVC glue to maintain the product's IP rating. 3. Install the enclosure base using the included mounting accessories (screws, neoprene washers, wall plugs): CET-HD-PM2-1 Power Meter User Manual (V9) - Page 11 If the enclosure base is warped the lid will not seal to the base correctly and the product IP rating may be compromised: 5. Ensure that the included neoprene washers are used when fastening the wall mounting screws: CET-HD-PM2-1 Power Meter User Manual (V9)
- Page 12 6. Silicone adhesive should be used to seal the mounting screws if the product is installed outdoors: 7. Press the included plastic screw covers into the mounting screw holes: CET-HD-PM2-1 Power Meter User Manual (V9)
- Page 13 8. Install all required power and data conduit and cables into the enclosure base. 9. All enclosure openings must be sealed to ensure the product is waterproof. Conduit glands and plugs must be sealed with PVC cement or a silicone adhesive. CET-HD-PM2-1 Power Meter User Manual (V9)
-
Page 14: Connect Lv Power Supply Cables
If the CET-HD-PM2 is being used to monitor a 2-phase or 3-phase supply, one reference must be connected for each additional phase (to the Phase B and Phase C positions on the terminal block). CET-HD-PM2-1 Power Meter User Manual (V9) - Page 15 (or a combination of devices) with a trip current of 32A or less and an earth-leakage trip current of 30mA or less. The CET-HD-PM2 must be installed with a disconnect device. The disconnect device shall disconnect simultaneously all line conductors of the AC MAINS SUPPLY. CET-HD-PM2-1 Power Meter User Manual (V9)
-
Page 16: Connect Ct Harness And Data Cables
Ethernet Connection Installation section for more details 14. If an RS485 connection is required (e.g. for a data connection to a solar Inverter), please see the RS485 Serial Connection Installation section for more details CET-HD-PM2-1 Power Meter User Manual (V9) - Page 17 Ensure the rubber gasket is properly seated on the enclosure lid during this process and does not get pinched or fouled by the enclosure. Check that there are no debris or tears on the gasket prior to assembly which could compromise the waterproof seal. CET-HD-PM2-1 Power Meter User Manual (V9)
- Page 18 CET-HD-PM2-1 Power Meter User Manual (V9)
- Page 19 17. When correct operation of the device has been confirmed, insert the plastic screw caps into the 6 lid screw positions: Important: these plastic caps must be fitted to ensure the product remains weatherproof. CET-HD-PM2-1 Power Meter User Manual (V9)
-
Page 20: Ethernet Connection Installation
1. Using a flat blade screwdriver, carefully remove the breakout tab covering the RJ45 "Ethernet" port: 2. Connect the remote equipment to the RJ45 port using a double insulated Ethernet cable (e.g. Clipsal 5005C305B). CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 21: Rs485 Serial Connection Installation
(e.g. Clipsal 5005C305B). The pinout for the RS485 cable is shown below: An RJ11 6P4C crimp connector is included in the standard set of accessories in the PM2 box. An RJ12 connector would also be compatible using pins 3 & 4. CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 22: Rs485 Filter For Goodwe Dns, Tds, Es G2 (Es-20) Inverters
(e.g. GW5000D-NS, GW5000-ES-20), an additional filter is required to block interference from the inverter from disrupting the CET-HD-PM2-1's powerline communications. The CET-IT2-485FILT-1 RS485 filter is not supplied with the CET-HD-PM2-1 but can be ordered separately in a pack of 5 filters (PN: CET-IT2-485FILPK-1). A pack of 5 RS485 filters is included in the CET Installer Kit (PN: CET-HD-INST-KIT-1). - Page 23 RS485 filter, and the brown-white wire to the data negative "-" INV terminal. Strip 11mm of insulation from the wires before termination: Wrap the terminated wires in 6 layers of electrical tape to ensure the finished assembly is properly insulated: CET-HD-PM2-1 Power Meter User Manual (V9)
-
Page 24: External Contactor Control Using Triac Output
External Contactor Control using TRIAC output The Sw output of the CET-HD-PM2-1 Power Meter is a 240VAC output controlled by an onboard TRIAC. This output can be used to energise the coil of an external relay/contactor for discrete control of large loads. -
Page 25: Installation Instructions
Installation Instructions Important: the neutral side of the relay/contactor coil must be terminated at the protected neutral of the same RCBO that provides power to the CET-HD-PM2-1 Power Meter. Important: The TRIAC that drives the Sw output is sensitive to over-voltage conditions - never connect a switch in series with the TRIAC output. -
Page 26: Ct Harness And Ct Bundles
CT Harness and CT Bundles The Combined Energy CT Harness system enables easy connection of up to 6 Current Transformers (CTs) to Combined Energy metering products: The CT Harness accepts up to two CT Bundles, each with three CTs: The purple USB-C cable provides a single-cable link between the CT Harness and the CET-HD-PM2. -
Page 27: Ct Bundle Labelling
A sheet of Red and Blue labels is supplied with each CT Bundle. It is recommended to label each bundle either RED or BLUE prior to installation, as this makes it much easier to configure the power meter and to debug issues with CT placement. CET-HD-PM2-1 Power Meter User Manual (V9) -
Page 28: Meter Configuration
CTs that relate to specific Devices within the Site. The meter configuration can be set by Combined Energy, or can be manually configured using the onSite web app. 1. Ensure that there is an Energy Management Unit (EMU) installed at the Site with access to the Internet, and that the Power Meter is able to communicate with the EMU (indicated by a green light on the button after power up). -
Page 29: Button
In some cases it may be necessary to manually reset the Powerline Communications (PLC) network. This can be done by pressing and holding the tactile push button on the front panel of the CET-HD-PM2-1 for at least 20 seconds and releasing the button when the light begins blinking fast.
Need help?
Do you have a question about the CET-HD-PM2-1 and is the answer not in the manual?
Questions and answers