Siemens SINAMICS V20

Parameter list
8.2 Parameter list
SINAMICS V20 Converter
262 Operating Instructions, 10/2019, A5E34559884-012
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data set
Data
type
Acc.
Level
P1215
Holding brake enable
0 - 1
0
C, T
-
-
U16
2
Enables/disables holding brake function. The motor holding brake (MHB) is controlled via status word 1
r0052 bit 12. This signal can be issued via:
• status word of the serial interface (e.g. USS)
• digital outputs (e.g. DO1: ==> P0731 = 52.C (r0052 bit 12))
0
Motor holding brake disabled
1
Motor holding brake enabled
Caution:
If the converter controls the motor holding brake, then a commissioning may not be carried out for potential-
ly hazardous loads (e.g. suspended loads for crane applications) unless the load has been secured.
It is not permissible to use the motor holding brake as working brake, as it is generally only designed for a
limited number of emergency braking operations.
P1216
Holding brake re-
lease delay[s]
0.0 - 20.0 1.0 C, T - - Float 2
Defines period during which converter runs at minimum frequency P1080 before ramping up.
P1217
Holding time after
ramp down [s]
0.0 - 20.0 1.0 C, T - - Float 2
Defines time for which converter runs at minimum frequency (P1080) after ramping down.
Note:
If P1217 > P1227, P1227 will take precedence.
P1218[0...2]
BI: Motor holding
brake override
0 - 4294967295 0 U, T - CDS U32 3
Enables the motor holding brake output to be overridden, allowing the brake to be opened under separate
control.
P1227[0...2]
Zero speed detection
monitoring time [s]
0.0 - 300.0 4.0 U, T - DDS Float 2
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
If P1217 > P1227, P1227 will take precedence.
P1230[0...2]
BI: Enable DC brak-
ing
0 - 4294967295 0 U, T - CDS U32 3
Enables DC braking via a signal applied from an external source. Function remains active while external
input signal is active. DC braking causes the motor to stop rapidly by applying a DC braking current (current
applied also holds shaft stationary).
When the DC braking signal is applied, the converter output pulses are blocked and the DC current is not
applied until the motor has been sufficiently demagnetized. This delay time is set in P0347 (demagnetization
time). If this delay is too short, overcurrent trips can occur. The level of DC braking is set in P1232 (DC
braking current - relative to the rated motor current) which is set to 100 % by default.
Caution:
With the DC braking, the kinetic energy of the motor is converted into heat in the motor. The converter could
overheat if it remains in this status for an excessive period of time!