Differential Input For +/-10 V At Rated Armature Dc Current; Input For +/-1 V At Rated Armature Dc Current - Siemens SINAMICS DCM Operating Instructions Manual

Parameter settings
p51822 =
p51823 =
p51824 =
Load
The load resistor for the V-circuit should be located externally, but must not be grounded
externally. Grounding is via terminal XB-2. R701 should be removed.
6.6.3.3

Differential input for +/-10 V at rated armature DC current

This connection option is intended for operation with an LEM transformer or shunt amplifier.
It should be remembered that many products are limited in terms of what they can control.
Where this is the case, connection should be based on a 1 V input.
Connection
XB-1 positive (not inverted), XB-4 negative (inverted). External grounding at XB-4 is
recommended. The signal has both polarities (switches pole during torque changes).
S700 switch positions:
Remove R701 and R704. The difference amplifier has an attenuating effect (10:1).
Parameter settings
p51822 =
p51823 =
p51824 =
Load
The load resistor for the LEM transformer should be located externally and grounded with
the power supply. Since shunt amplifiers generally have a ±10 V voltage output, they do not
require a load.
6.6.3.4

Input for +/-1 V at rated armature DC current

This connection option is intended for operation with an LEM transformer.
Connection
XB-1 positive (not inverted), XB-4 negative (inverted). External grounding at XB-4 is
recommended. The signal has both polarities (switches pole during torque changes).
SINAMICS DCM Control Module
Operating Instructions, 06.2010, C98130-A7067-A1-02-7619
Rated armature DC current
Input voltage at rated armature current/10
4
1 – 3 connected
4 – 6 connected
7 – 9 connected
Rated armature DC current
Input voltage at rated armature current/10
5 (bipolar)
6.6 Measurement of the armature current
Connecting
97