Function block library
7-152

SHB9300CRV EN 2.0
4. Determine source for the activation of the mains failure control:
– see chapter 7.6.48.1
5. Generate proportional gain and adaptation of the DC bus voltage controller:
– C0974 = 1006 (FIXED100% to MFAIL-CONST)
– C0973 = 1000 (FIXED0% to MFAIL-ADAPT)
6. Achieve restart protection
– C0976 = 6100 (MFAIL-NOUT to MCTRL-NACT)
– C0975 = 19538 (C0472/18 to MFAIL-THRESHLD)
– First enter approx. 2 % under C0472/18 (reference: nmax C0011)
7. Connect reset input (here with terminal X5/E5 TRIP-RESET):
– C0972 = 55 (DIGIN5 to MFAIL-RESET)
8. Enter all function blocks used (except for codes and digital inputs DIGIN)in free positions of
the processing table in C0465.
Tip!
All settings must be saved non-volatile in a parameter set under C0003.
FIXED0%
C0472/18
FIXED100%
NSET-NOUT
CMP2-OUT
DIGIN5
C0472/18
MCTRL-NACT
MCTRL-NACT
MCTRL-N-SET
MCTRL-I-LOAD
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
Fig. 7-114 Link for the basic configuration C0005 = 1000
Activation
l
MFAIL-FAULT = HIGH activates the mains failure control.
l
MFAIL-FAULT = LOW triggers a timing element. After the time set under C0983 has elapsed,
the mains failure control is completed/canceled (see description of mains recovery, chapter
7.6.48.6).
– The drive is accelerated to the speed setpoint if the restart protection is not active.
– The drive is still braked to zero speed, if the restart protection is active (see description
about the restart protection, Chapter 7.6.48.3).
– If the restart protection is active, the drive can only be reset by a HIGH level signal at the
MFAIL-RESET input.
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