Freq Limit For Kinetic Buffering - Siemens MICROMASTER 440 Parameter Manual

Parameter Description
P1256 = 1:
Maintain dclink voltage until mains is returned or drive is tripped undervoltage or pulses disabled when
frequency falls below the limit in P1257.
V
DC
P1245
V
DC_min
f
P1257
Pulse
1
enabled
0
P1256 = 2:
This option ramps down the frequency to stand still even when mains return. If mains return, then an OFF1
is active until P1257 limit then pulses disabled. If mains does not return, frequency brought down under the
control of vdc-min controller until P1257 limit then pulses disabled or undervoltage has occurred.
V
DC
P1245
V
DC_min
f
P1257
Pulse
enabled
1
0
P1257[3]

Freq limit for kinetic buffering

CStat: CUT
P-Group: SETPOINT
Frequency which kinetic buffering (KIB) either hold speed or disable pulses depending on P1256.
Index:
P1257[0] : 1st. Drive data set (DDS)
P1257[1] : 2nd. Drive data set (DDS)
P1257[2] : 3rd. Drive data set (DDS)
152
OFF1
OFF2
Datatype: Float Unit: Hz
Active: first confirm QuickComm.: No
Issue 01/06
t
t
t
t
t
t
Min: 0.00
Def: 2.50
Max: 600.00
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
Level
3