CET PMC-220 User manual

This is the installation and registration guide for CET Meter which referred to as MB-63 or               
6M+One device on our system. Throughout the rest of the document, the device will be              
addressed as CET Meter.
Installation guide
(Link for the SLDs: https://drive.google.com/drive/folders/1SK--jg-cPQgHH2JOm3B7fxpZGIdwI27G)
1. WARNING
DO NOT power-up the Solar Analytics device before/simultaneously with the CET Meter.          
It has to be powered up after the CET Meter.

2. The sequence
○DO NOT power-up the Solar Analytics device before/simultaneously with the CET         
Meter. It has to be powered up after the CET Meter.
○Install the CET device accordingly
○Establish the Modbus connection from the CET device to the MB-63 device
○Power up the CET device
○Power up the Solar Analytics device

3. What device are we dealing with?
○PMC-220 — straight-through connection.
○PMC-340-BA — straight-through connection.
○PMC-340-BB — 3P4W method: using the White CTs.


PMC-220
PMC-340-BA
PMC-340-BB




4. PMC-220
○Hardware installation
i. Straight through connection

ii. MB-63 Modbus B (+) and A (-) are to be connected to Terminal 8 and 7               
respectively...
○Configuration
i. This device relies on the MB-63 device for its timestamp.

5. PMC-340-BA
○Hardware installation
i. Straight through connection
ii. MB-63 Modbus B (+) and A (-) are to be connected to Terminal 12 and 11               
respectively.
○Configuration
i. Adjust the time and date.
ii. ↵2s, ↓x1, PW, ↵x1, enter the password as 0000 to enter to the               
configuration mode, then press ↓until you see the TIME SET, set the date             
and the time.
( ↵ 2s twice to go back to the Main Menu).

6. PMC-340-BB
○Hardware installation
i. The white CTs are to be attached to the PMC-340-BB — Pink on top and              
White on the bottom.
ii. The black CTs are to be attached to the MB-63.
iii. Terminal 1, 2, 3, and 4 are to be connected to the Red, White, Blue, and               
Neutral respectively.
iv. MB-63 Modbus B (+) and A (-) are to be connected to Terminal 12 and 11               
respectively — same as PMC-340-BA

○Configuration
i. Set up the turn ratio of cr1 and cr2 to 600 and 5

The turn ratio of CT1 equals to 0 is invalid! Hence, need to set the turn
ratio to 605 before tuning it back down to 600.

↵2s, ↓x1, PW, ↵x1, enter the password as 0000 to enter the configuration               
mode, then press ↓until you see the SYS SET, ↵x1, set the cr1 to 600, set                 
the cr2 to 5, ↵2s twice to go back to the Main Menu. (Continue to the next                 
point).
ii. Adjust the time and date
↓ until you see the TIME SET, set the date and the time.



7. Final check — voltage test!

Solar Analytics unable to do a remote phase-swap with the CET Meter, hence, the             
installation has to be correct on the spot!

○PMC-340-BB
i. Get the multimeter ready.
ii. Confirm that the voltage between Terminal 4 to Terminal 1, 2, and 3 are             
the same as the Terminal 4 to Phase 1, 2, and 3 respectively.

i.e. P1 to V1 should be very close to 0 and so on.

○PMC-340-BA
i. Get the multimeter ready.
ii. Confirm that the voltage between N to Terminal L1, L2, and L3 on the             
340-BA are the same as the N to P1, P2, and P3 on the MB-63              
respectively.

i.e. P1 to V1 should be very close to 0 and so on.

Troubleshooting
Purchase a USB to RS-422/485 cable
Download the PMC software
Wire USB adaptor to CET meter and plug it into your computer to diagnose the issue