Siemens SINAMICS S150 NEMA, Operating Instructions Manual

Page: 546 / 862

Functions, monitoring and protective functions
9.3 Drive functions
Enclosed Drives
544
Operating Instructions, 12/2018, A5E36652151A
Function diagram
FP 7017 Technology functions - DC braking
Parameters
•
p0300:
Mot type selection
•
p0491
Motor encoder fault response: ENCODER
•
p1226
Threshold for standstill detection
•
p1230
BI: Armature short-circuit/DC braking activation
•
p1231
Armature short-circuit/DC braking configuration
• 4: Internal armature short-circuit/DC braking
•
5: DC braking OFF1/OFF3
• 14: DC braking below starting speed
• p1232
DC braking, braking current
• p1233
DC braking duration
• p1234
Speed at the start of DC braking
• r1239
CO/BO: Armature short-circuit/DC braking status word
• p2100
Changing the fault reaction, fault number
• p2101
Changing the fault reaction, reaction
9.3.11 Increasing the output frequency
9.3.11.1 Description
In applications that require higher output frequencies, the pulse frequency of the drive may
have to be increased.
It may also be necessary to change the pulse frequency to prevent resonances from
occurring.
Since increasing the pulse frequency also increases the switching losses, a derating factor
for the output current must be taken into account when the drive is configured.
Once the pulse frequency has been increased, the new output currents are automatically
included in the calculation for power unit protection.