ABB RELION REX640 Technical Manual page 1350

Supervision functions
Incoming Feeder1 (primary source)
Measurement
Figure 767: Example of remanent voltage supervision after fault
MSVPR runs in the range of 10...70 Hz. If the frequency is lower than 10 Hz, the motor
terminal voltage is very low. The remanent voltage setting is typically set to 20...30
percent of the rated voltage.
6.8.7 Signals
6.8.7.1 MSVPR Input signals
Table 1297: MSVPR Input signals
Name
U3P
BLOCK
6.8.7.2 MSVPR Output signals
Table 1298: MSVPR Output signals
Name
U_LOW
6.8.8 MSVPR Settings
1350
CB1
Bus1
CB3
Control logic
MSVPR
M
Type
SIGNAL
BOOLEAN
Type
BOOLEAN
Incoming Feeder2 (backup source)
Bus2
CB5
Outgoing Feeder1
Default
-
0=False
Description
Low remanent voltage
1MRS759142 F
CB2
Measurement
CB4
Description
Three-phase voltages
Block signal for acti-
vating the blocking
mode
REX640
Technical Manual