Power-Off Sequence - Siemens SIMOVERT MV Series Commissioning Instructions

yes
yes
Yes
**) The drive converter goes into the "ready to power-on"
status, further, the fan/HIB run-on is started
Fig. 5.3
108
Operation
Drive converter
OFF1
Command,
set n_set = 0
inhibit HLG
RM time
expired ? n_act = 0 and
Iexc goes to 0A *) and
de-energization delay time expired
No
Command,
Inhibit WR pulses
inhibit
RM time
expired ?
RM WR is inhibited
No
Command
LS OPEN
RM time
expired ?
RM LS is OPEN
No
Command
HIB OFF
**)
Yes
Ready to
Fault
power-on
Sequence diagram, OFF1
RM = Checkback signal
WR = Inverter
GR = Rectifier
HLG = Ramp-up generator
LS
HIB = Auxiliaries
LS OPEN
Crowbar
thyristor ON
Start run-on
fan/HIB
**)
RM time
expired ?
No
RM HIB OFF
RM 6RA24 OFF *)
*) only for SM
Siemens AG
SIMOVERT MV
= Circuit breaker
No
Time expired?
Yes
HIB OFF
6RA24 OFF *)
Fan OFF
Operator
command
Converter
status
Program
step
6SE8004-0BH76
Commissioning Instructions