Siemens SINAMICS CU240S DP-F Operating Instructions Manual page 107

Table 5-14 Monitoring parameters
Parameter Name
Comment
r0061 CO: Rotor speed
Indicates the speed of the rotor. Used to check that the system is working correctly.
r0090 CO: Act. rotor angle
Indicates the current angle of the rotor. This function is not available on single input channel encoders.
r0403 CO/BO: Encoder status word
Displays status word of speed encoder in bit format:
Bit 00 - Encoder active
Bit 01 - Encoder fault
Bit 02 - Signal OK
Bit 03 - Encoder low speed loss
Bit 04 - Single edge measurement
When commissioning the closed-loop Vector control with sensor (VC) the frequency
inverter should first be operated with V/f control (p1300 = 0). When the motor is spinning
and the speed encoder connected (activated using p0400), parameters r0061 and r0021
must match one another as far as the following quantities are concerned:
• Sign
• Absolute value (a deviation of a few percent is permitted)
The closed-loop Vector control with sensor (encoder) (p1300 = 21 or 23) may only be
activated if both conditions are fulfilled.
Too short ramp times (P1120 and 1121) can cause F90, encoder feedback loss).
Note
If the encoder is incorrectly connected, incorrect values will be displayed in r0061, r0063,
r0021 and r0022
Control Units CU240S
Operating Instructions, 07/2008 - FW 3.2, A5E00766042B AD
CAUTION
Commissioning
5.8 Commissioning the Encoder
0 = No 1 = Yes
0 = No 1 = Yes
0 = No 1 = Yes
0 = No 1 = Yes
0 = No 1 = Yes
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