Operating Instructions

SED2 Conventional Bypass Option Operating Instructions
38 Siemens Building Technologies, Inc.
Automatic Restart, Continued
Parameter Description Action Setting/Default
P1210
(Continued)
P1210 = 7, Restart after
supply power
brown/blackout or fault
(P1211 enabled):
This setting is for use where
an external bypass system
or process is interlocked
with a relay that is set to
P0731/P0732=52.3 (fault).
The inverter functions the
same as P1210=6 (trip on
brownout, blackout or fault)
but uses P1211 and only
sets the fault bit
P0731/P0732=52.3 when
the specified number of
restarts defined in P1211
has expired. If no trip
occurs after 2 hours, the
fault counter is reset.
1. Press
to enter the SED2
parameter mode and to display
r0000.
2. Press
to advance to parameter
P1210.
3. Press
to access the parameter
values level.
4. Press
to advance to desired
setting.
5. Press
to confirm and save the
setting.
Minimum = 0
Default = 1
Maximum:
5 = Control
Board
Version
1.20 or
earlier
NOTES:
1. Auto restart requires a constant ON command (such as via a digital input).
2. P1200 flying start must be used in cases where the motor may still be turning, such as after a brief input
power break, or can be driven by the load.
3. A supply power brownout is when the power is interrupted and reapplied before the operator panel display
has gone dark. It is a very short supply power break where the DC link has not fully collapsed.
4. A supply power blackout is when the operator panel display has gone dark before the power is reapplied.
It is a long supply power break where the DC link has fully collapsed.