Siemens SINUMERIK 840D sl Series Diagnostics Manual page 711

08/2005
207995 <location>Drive: Pole position identification routine not successful
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The pole position identification routine was unsuccessful.
Fault value (r0949, decimal):
1: No current is established.
2: The starting current is not zero.
3: The selected maximum distance was exceeded (p1981).
4x: The measuring signal does not permit a clear evaluation.
5: The maximum current was exceeded during the measurement.
6: The current measurement must be re-calibrated.
7x: The sensor module does not support the pole position identification routine.
70 ... 79: Only for internal Siemens troubleshooting.
8: The pole position identification routine current required is greater than the maximum
current.
9: The set pole position identification routine current is zero.
Note: x = 0 ... 9
Remedy: Re fault value = 1:
Check the motor connection and DC link voltage.
For the following parameters, set practical values that are not zero (p0325, p0329).
Re fault value = 3:
Increase the maximum distance (p1981).
Reduce the currents for the pole position identification routine (p0325, p0329).
Stop the motor in order to carry-out the pole position identification routine.
Re fault value = 40 ... 49:
Increase the currents for the pole position identification routine (p0325, p0329).
Stop the motor in order to carry-out the pole position identification routine.
Select another technique for pole position identification routine (p1980).
Use another motor, absolute value encoder or Hall sensors.
Re fault value = 5:
Reduce the currents for the pole position identification routine (p0325, p0329).
Re fault value = 6:
Re-calibrate the motor module.
Re fault value = 7x:
Upgrade the software in the sensor module.
Re fault value = 8:
Increase the maximum current (p0640).
Reduce the currents for the pole position identification routine (p0329).
The power module cannot provide the necessary pole position identification routine current
(p0209 < p0329), replace the power module by a power module with a higher maximum
current.
Re fault value = 9:
A value not equal to zero was entered in the pole position identification routine current
(p1993).
207996 <location>Drive: Pole position identification routine not carried-out
Reaction: ENCODER (OFF2)
Acknowledge: IMMEDIATELY
Cause: The drive was changed over, flying, from sensorless operation to operation with encoder
without having previously carried-out a pole position identification for the encoder. p1404
is then at a value between zero and the maximum speed and the pulses in the speed range
above p1404 were enabled without a pole position identification routine having been
previously carried-out in operation with encoder.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-711