Lenze EVS9332xS - Manual (Page 163)

Function library
Function blocks
3.2.40 Mains failure control (MFAIL)
3−111
l
EDSVS9332S−EXT EN 2.0
3.2.40 Mains failure control (MFAIL)
Purpose
If the supply voltage via L1, L2, L3 or +UG, −UG fails, the drive (drive network) can be decelerated
(braked) in a controlled way. Without this function, the drive (drive network) would coast.
C0988/7
MFAIL-DC-SET
C0989/1
MFAIL-FAULT
MFAIL-RESET
C0982
C0971
C0972
C0978
MFAIL-ADAPT
C988/2
C0973
C0974
C0981
+
-
1
0
C0988/1
C0970
MFAIL-CONST
C988/3
C0980 Vp
Tn
MCRTL-
DCVOLT
C0989/2
MFAIL-THRESHOLD
C0975
C0988/4
MFAIL-NACT
C0976
C0988/5
MFAIL-SET
C0977
C0988/6
CTRL
MFAIL-I-RESET
MFAIL-NOUT
MFAIL-STATUS
MFAIL
+
-
MFAIL-N-SET
C0983
Fig. 3−98 Mains failure control (MFAIL)
Signal Source Note
Name Type DIS DIS format CFG List Lenze
MFAIL−N−SET a C0988/1 dec [%] C0970 1 1000 Speed setpoint in [%] of C0011
MFAIL−ADAPT a C0988/2 dec [%] C0973 1 1000 Dynamic adaptation of the proportional
gain of the U
Gset
controller in [%] of C0980
MFAIL−KONST a C0988/3 dec [%] C0974 1 1000 Proportional gain of the U
Gset
controller in
[%] of C0980
MFAIL−THRESHOLD a C0988/4 dec [%] C0975 1 1000 Restart threshold in [%] of C0011
MFAIL−NACT a C0988/5 dec [%] C0976 1 1000 Comparison value for the restart threshold
in [%] of C0011
MFAIL−SET a C0988/6 dec [%] C0977 1 1000 Speed start point for the deceleration in
[%] of C0011
MFAIL−DC−SET a C0988/7 dec [%] C0978 1 1000 Voltage setpoint on which the DC bus
voltage is to be maintained, 100% =
1000V
MFAIL−FAULT d C0989/1 bin C0971 2 1000 HIGH = activates the mains failure control
MFAIL−RESET d C0989/2 bin C0972 2 1000 HIGH = reset
MFAIL−N−OUT a − − − − − Speed setpoint in [%] of C0011
MFAIL−STATUS d − − − − − HIGH = mains failure control active
MFAIL−I−RESET d − − − − − HIGH = mains failure control active, the
drive is braking