Field Weakening - Siemens SINAMICS DCM Operating Instructions Manual

Commissioning
8.3 Commissioning using the BOP20 Operator Panel
〈6.5〉Operation with incremental encoder and SMC30
p50083[D] = 5 The actual speed value comes from an incremental encoder connected to
p0400[1]
p2000
〈6.6〉Operation with resolver and SMC10
p50083[D] = 5 A DRIVE-CLiQ encoder supplies the speed actual value
p0400[1]
p2000
〈7〉Data for field
〈7.1〉Control of the field
p50082 = 0
p50082 = 1
p50082 = 2
p50082 = 3
p50082 = 4
〈7.2〉Field weakening
p50081 = 0
p50081 = 1
〈8〉Set basic technological functions
〈8.1〉Current limits
p50171[D]
p50172[D]
244
an SMC30 (r3770).
Encoder type selection
Speed in rpm at 100% speed
Remark:
The value set here determines the 100% speed for the closed-loop speed
control.
Encoder type selection
Speed in rpm at 100% speed
Comment:
The value set here defines the 100% speed for the closed-loop speed
control.
Internal field is not used
(e.g. in the case of permanent-magnet motors)
The field is activated with the line contactor
(field pulses are activated or deactivated at the same time as the line con-
tactor)
Automatic switching-in of the standstill field set using p50257 after a time
that can be parameterized using p50258 has elapsed, once operating state
o7 or higher has been reached
Field current permanently switched on
Field with Auxiliaries ON signal activated
No speed-dependent or EMF-dependent field weakening
Field-weakening operation by means of internal closed-loop EMF control,
i.e. at speeds above the motor's rated speed (= "cut-in speed"), the motor
EMF is constantly kept at setpoint EMFset (r52289) = p50101 – p50100 x
p50110
System current limit in torque direction I (as % of p50100)
System current limit in torque direction II (as % of p50100)
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A