Operating Instructions

Commissioning
Siemens Building Technologies, Inc. 69
Parameter Description Action Setting/ Default
P1080 Minimum Motor
Frequency
0 Hz to 650 Hz
Minimum motor frequency
at which the motor will run
irrespective of the
frequency setpoint. This
value applies to both
clockwise and
counterclockwise rotation.
1. Press
to advance to
parameter P1080.
2. Press
to access the
parameter values level.
3. Press
to advance to
desired value.
4. Press
to confirm and
save the setting.
Site Setting
(20-30% Max)
Default = 10
Maximum Motor
Frequency
0 Hz to 650 Hz
Maximum motor frequency
at which the motor will run
regardless of the frequency
setpoint. This value applies
to both clockwise and
counterclockwise rotation.
1. Press
to advance to
parameter P1080.
2. Press
to access the
parameter values level.
3. Press
to advance to
desired value.
4. Press
to confirm and
save the setting.
Site Setting
Default = 50 or
60
(Default is
determined by
the setting of the
Motor
Frequency and
Unit of
Measurement
DIP switches.)
P1082
NOTE:
This value is limited internally to 200 Hz or five times the rated motor frequency
(P0305) when P1300is greater than or equal to 20 (control mode=vector
control). The value displays via r0209 (maximum frequency).
Ramp-up Time
0s to 650s
1. Press
to advance to
parameter P1120.
2. Press
to access the
parameter values level.
3. Press
to advance to
desired value.
4. Press
to confirm and
save the setting.
Site Setting
Default = 10
Typical fan =
120s.
Typical pump =
30s.
P1120
NOTES:
1. Setting the ramp-up time too short can cause the SED2 to trip (F0001
overcurrent, F0002 overvoltage, or F0003 undervoltage).
2. If using an external frequency setpoint with set ramp rates (such as from a
PLC), achieve optimum SED2 performance by setting ramp times (P1120
and P1121) slightly shorter than those of the PLC.