ABB RELION REX640 - 6.8.7 Signals; 6.8.7.1 MSVPR Input signals; 6.8.7.2 MSVPR Output signals; 6.8.8 MSVPR Settings

M
Incoming Feeder1 (primary source) Incoming Feeder2 (backup source)
Outgoing Feeder1
Bus1 Bus2
CB5
CB1 CB2
CB3
CB4
MSVPR
Control logic
Measurement
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 Type Default Description
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
6.8.7.2 MSVPR Output signals
Table 1298: MSVPR Output signals
Name Type Description
U_LOW BOOLEAN Low remanent voltage
6.8.8 MSVPR Settings
Supervision functions
1MRS759142 F
1350 REX640
Technical Manual