ABB REG670 - Function Block

VDSPVC is designed to detect fuse failures or faults in voltage measurement circuit,
based on phase wise comparison of voltages of main and pilot fused circuits.
VDSPVC blocking output can be configured to block functions that need to be
blocked in case of faults in the voltage circuit.
13.3.3 Function block
VDSPVC
U3P1*
U3P2*
BLOCK
MAINFUF
PILOTFUF
U1L1FAIL
U1L2FAIL
U1L3FAIL
U2L1FAIL
U2L2FAIL
U2L3FAIL
IEC14000048-1-en.vsd
IEC12000142 V2 EN
Figure 294: VDSPVC function block
13.3.4 Signals
Table 355: VDSPVC Input signals
Name
Type Default Description
U3P1 GROUP
SIGNAL
- Main fuse voltage
U3P2 GROUP
SIGNAL
- Pilot fuse voltage
BLOCK BOOLEAN 0 Block of function
Table 356: VDSPVC Output signals
Name
Type Description
MAINFUF BOOLEAN Block of main fuse failure
PILOTFUF BOOLEAN Alarm of pilot fuse failure
U1L1FAIL BOOLEAN Fuse failure of Main fuse group phase L1
U1L2FAIL BOOLEAN Fuse failure of Main fuse group phase L2
U1L3FAIL BOOLEAN Fuse failure of Main fuse group phase L3
U2L1FAIL BOOLEAN Fuse failure of Pilot fuse group phase L1
U2L2FAIL BOOLEAN Fuse failure of Pilot fuse group phase L2
U2L3FAIL BOOLEAN Fuse failure of Pilot fuse group phase L3
Section 13 1MRK502052-UEN B
Secondary system supervision
620
Technical manual