Field Weakening - Siemens SINAMICS Series Operating Instructions Manual

Commissioning
8.3 Commissioning using the BOP20 operator panel
〈5.5〉Operation with incremental encoder and SMC30
p50083[D] = 5 The actual speed value comes from an incremental encoder connected to
p0400[1]
p2000
〈5.6〉Operation with resolver and SMC10
p50083[D] = 5 A DRIVE-CLiQ encoder supplies the speed actual value
p0400[1]
p2000
〈6〉Data for field
〈6.1〉Control of the field
p50082 = 0
p50082 = 1
p50082 = 2
p50082 = 3
〈6.2〉Field weakening
p50081 = 0
p50081 = 1
〈7〉Set basic technological functions
〈7.1〉Current limits
p50171[D]
p50172[D]
278
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
contactor)
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
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 DC Converter
Operating Instructions, 12/2018, A5E34763375A