User guide

Rockwell Automation Publication 20B-IN027A-EN-P - March 2011 3
PowerFlex 700 Phase Monitor Relay Replacement
7. Remove the wire connected to terminal 24 of the relay. Relabel this wire
“28.”
8. Remove the end clamps from the DIN rail. Remove the relay and discard.
9. Mount the new relay to the DIN rail and install end clamps.
10. Connect wire numbers 25 and 28 to the corresponding terminals of the
new relay.
11. Connect the L1, L2 and L3 wires to the corresponding terminals of the
new relay.
12. Verif y the following adjustments:
Figure 2 - Replacement Relay Adjustments
13. Apply power and check for proper operation.
If phasing is correct, the “R/T” LED will illuminate.
If phasing is not correct, the “F1” and “F2” LEDs will alternately
illuminate. Refer to the PowerFlex 700 Frame 7…10 Installation
Instructions, publication 20B-IN014 for troubleshooting information.
Type B - Drives Manufactured January 20, 2011 and after
1. Verify that all power to the drive has been removed.
2. Using Figure 1
, verify that the relay installed in your drive matches “Type
B.” If not, refer to the procedure on page 2
.
No.
(see Figure 2
) Adjustment Setting
➊ DIP Switches OFF
➋ Overvoltage Threshold Set to maximum (580V)
➌ Undervoltage Threshold Set to minimum (350V)
➍ Phase Unbalance Threshold Set to maximum (25%)
➎ Delay Set to minimum (0 s)
L1 L2 L3
16
UV
UV
F2
F1
R/T
Asym. %
Time s
15 18 26 25 28
580
15
350
6
ON
43 21
OFF
➊
➍
➌
➋
➎