Siemens CU240S DP-F Parameter Manual

List of Parameters
Parameters
1-143
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Caution: It is not permissible to use the motor holding brake as working brake, as it is generally only designed for a limited
number of emergeny braking operations.
Note: In V/f control (P1300 < 20) a typical value of min. frequency P1080 for motor holding brake is the slip frequency of
the motor r0330.
In a vector control mode (P1300 = 20 or P1300 = 21)
• The value of the min. Frequency P1080 should be zero.
• The delay speed loss reaction should be > brake holding times (i.e. P0494 > P1216 and P0494 > P1217 )
• The delay time for motor pulled out should be > brake holding times (i.e. P2178 > P1216 and P2178 > P1217 )
Otherwise there may be encoder loss trips (F0090) when the brake is applied and pulses are enabled.
Description: Defines period during which inverter runs at min. frequency P1080 before ramping up.
Description: Defines time for which inverter runs at minimum frequency (P1080) after ramping down.
Description: Sets the monitoring time for the standstill identification.
When braking with OFF1 or OFF3, standstill is identified after this time has expired, after the setpoint speed has
fallen below P2167. After this, the braking signal is started, the system waits for the closing time and then the
pulses are cancelled.
Note: P1227 = 300.0 : function is deactivated
P1227 = 0.0 : pulses are locked immediately
n
nsy
nnsy
Slip
f
n
n n
P0310
100
r0330
[Hz]f ⋅
−
=⋅=
p1216 Holding brake release delay / MHB release delay
Access level: 2 P-Group: - Data type: Floating Point
Quick comm. NO Active: NO Data set: -
Can be changed: C, T
Min Max Factory setting
0.0 [s] 20.0 [s] 1.0 [s]
p1217 Holding time after ramp down / Thold. <- ramp-dwn
Access level: 2 P-Group: - Data type: Floating Point
Quick comm. NO Active: NO Data set: -
Can be changed: C, T
Min Max Factory setting
0.0 [s] 20.0 [s] 1.0 [s]
p1227[0...2] Zero speed detection monitoring time / Zero speed time
Access level: 2 P-Group: Setpoints Data type: Floating Point
Quick comm. NO Active: NO Data set: DDS
Can be changed: U, T
Min Max Factory setting
0.0 [s] 300.0 [s] 4.0 [s]

Siemens CU240S DP-F Specifications

General

Brand	Siemens
Model	CU240S DP-F
Category	Control Unit
Language	English