Siemens SINAMICS G130 Operating Instructions Manual page 368

Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without encoder
The optional motor data can be entered if it is known. Otherwise, this data is estimated from
the type plate data or determined by means of motor identification or speed controller
optimization.
Table 7- 3 Motor data type plate
Parameter Description
p0320 Rated motor short-circuit current
p0322 Maximum motor speed
p0323 Maximum motor current
p0325 Rotor position identification current, 1st phase
p0327 Optional load angle
p0328 Reluctance torque constant
p0329 Rotor position identification current
p0341 Motor moment of inertia
p0344 Motor weight
p0350 Stator resistance, cold
p0356 Quadrature axis stator inductance Lq
p0357 In-line stator inductance Ld
Short-circuit protection
For short-circuits that can occur in the drive converter or in the motor cable, the rotating
machine would supply the short-circuit until it comes to a standstill. An output contactor can
be used for protection. This should be located as close as possible to the motor. This is
particularly necessary if the motor can still be driven by the load when a fault develops. The
contactor must be provided with a protective circuit against overvoltage on the motor side so
that the motor winding is not damaged as a result of the shutdown.
Control signal r0863.1 (VECTOR) controls the contactor via a free digital output; the
checkback contact of the contactor is connected to parameter p0864 via a free digital input.
This means that if the drive converter develops a fault with a shutdown response, at the
instant in time that the pulses are inhibited, the motor is isolated from the drive converter so
that energy is not fed back to the fault location.
Function diagram
FP 6721
FP 6724
FP 6731
368
Vector control - Id setpoint (PEM, p0300 = 2)
Vector control – field weakening controller (PEM, p0300 = 2)
Vector control - interface to Motor Module (PEM, p0300 = 2)
Comment
For field weakening characteristic
Maximum mechanical speed
De-magnetization protection
-
Optional otherwise leave at 90°
-
-
For speed controller pre-control
-
-
-
-
Operating Instructions, 07/2016, A5E00331449A
Inverter chassis units