Functions
7.9 Technological functions
Inverter with CU240B-2 and CU240E-2 Control Units
202 Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Table 7- 31 Control logic parameters of the motor holding brake
Parameter Description
P1215 = 1 Enable motor holding brake
0 Motor holding brake locked (factory setting)
1 Motor holding brake just like the sequence control
2: Motor holding brake permanently open
3: Motor holding brake just like the sequential control, connected via BICO
P1216 Motor holding brake opening time (factory setting 0.1 s)
P1216 > Braking signal relay runtimes + Brake release time
P1217 Motor holding brake closing time (factory setting 0.1 s)
P1217 > Braking signal relay runtimes + Brake closing time
P1226 Stationary state detection speed threshold (factory setting 20 1/min)
When braking with OFF1 or OFF3, when the speed falls below this threshold,
standstill is detected and the monitoring time P1227 or P1228 is started
r0052.12 "Open motor holding brake" status
Table 7- 32 Advanced settings
Parameter Description
P0346 Magnetizing time (factory setting 0 s)
During this time the induction motor is magnetized. The inverter calculates this
parameter using P0340 = 1 or 3.
P0855 Open motor holding brake (imperative) (factory setting 0)
P0858 Close motor holding brake (imperative) (factory setting 0)
P1227 Stationary state detection monitoring time (factory setting 300 s)
P1228 Pulse deletion delay time (factory setting 0.01 s)
P1351 Starting frequency of motor holding brake (factory setting 0%)
Setting the frequency set value at the slip compensation output when starting with
motor holding brake.
When the parameter p1351 is set to > 0, slip compensation is automatically switched
on.
P1352 Starting frequency for motor holding brake (factory setting 1351)
Setting the signal source for the frequency set value at the slip compensation output
when starting with motor holding brake.
P1475 Speed controller torque set value for motor holding brake (factory setting 0)
Setting the signal source for the torque set value when starting with motor holding
brake.
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