Troubleshooting and fault elimination
Error elimination
BehaviourincaseofovervoltageintheDCbus(OUmessage)
9
9.4
9.4.3
9.4-4
EDSVF9333V EN 3.0-06/2005
U
DC
t C0912³
t < C0912
t = C0912
01
IMP
9300vec142
Fig. 9.4-2 Influence of the delay time (C0912)
c
Switch-off threshold OU
d
Switch-on threshold OU
The period of time between exceeding the sw itch-off threshold OU and
undershooting the switch-on threshold OU equals or is higher than the set
delay time in C0912.
After undershooting the switch-on threshold OU the pulse inhibit is
deactivated.
The period of time between exceeding the sw itch-off threshold OU and
undershooting the switch-on threshold OU is lower than the set delay time
in C0912.
The pulse inhibit is deactivated after the delay time in C0912 has elapsed.
ƒ In C0912 the delay time is set in [ms].The Lenze setting can be changed
by the factor 0.5 ... 2.
Adjustment
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