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Functions, monitoring and protective functions
9.3 Drive functions
Enclosed Drives
522
Operating Instructions, 12/2018, A5E36652151A
Parameter p1256 = 1 (p1296) can be used to activate time monitoring for kinetic buffering.
The monitoring time can be set in parameter p1255 (p1295). If buffering (i.e. the power
failure) lasts longer than the time set here, the drive is switched off with fault F7406 (drive:
kinetic buffering maximum time exceeded). The standard fault reaction for this fault is OFF3,
which means that this function can be used for controlled drive deceleration in the event of a
power failure. In this case, excess regenerative energy can only be dissipated via an
additional braking resistor.
Function diagram
FP 6220 (FP 6320)
Vdc_max controller and Vdc_min controller
Parameters
•
p1240 (p1280)
Vdc controller or Vdc monitoring configuration
•
p1245 (p1285)
Vdc_min controller switch-on level (kinetic buffering)
•
r1246 (r1286)
Vdc_min controller switch-on level (kinetic buffering)
•
p1247 (p1287)
Vdc_min controller dynamic factor (kinetic buffering)
•
p1250 (p1290)
Vdc controller proportional gain
•
p1251 (p1291)
Vdc controller integral action time
•
p1252 (p1292)
Vdc controller derivative-action time
•
(p1293)
Vdc_min controller output limit (V/f)
•
p1255 (p1295)
Vdc_min controller time threshold
•
p1256 (p1296)
Vdc_min controller response (kinetic buffering)
•
p1257 (p1297)
Vdc_min controller speed threshold
•
r1258 (r1298)
Vdc controller output
Summary of Contents for SINAMICS S150 NEMA
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