Siemens SED2 VFD NEMA Operating Instructions Manual page 52

SED2 VFD NEMA Type 3R/3RHE Bypass Operating Instructions
Automatic Restart Continued
Parameter Description
P1211 P1210 = 5, Restart after blackout or
fault (P1211 disabled):
The inverter will acknowledge the
faults (F0003 etc.) at power on
after blackout and will restart the
drive. It is necessary that the ON
command is wired via digital input
(DIN).
P1210 = 6, Restart after supply
power brown/blackout or fault
(P1211 disabled):
The inverter will acknowledge the
faults (F0003 etc.) at power on
after blackout or brownout and
will restart the drive. It is
necessary that the ON command
is wired via digital input (DIN).
Setting 6 causes the motor to
restart immediately.
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.
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.
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Action
1. Press to enter the SED2
parameter mode and to r0000.
2. Press to advance to
parameter P1211.
3. Press to access the
parameter values level.
4. Press to advance to
desired value.
5. Press to confirm and save
the setting.
Setting/Default
Minimum = 0
Default = 3
Maximum = 10
Suggested = 10
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