Control Techniques Unidrive sp Kurzhandbuch Seite 47

Safety Product Mechanical
Information Information Installation
Trip
Enc3 Drive encoder trip: Phase offset incorrect whilst running
Check the encoder signal for noise
Check encoder shielding
191
Check the integrity of the encoder mechanical mounting
Repeat the offset measurement test
Enc4 Drive encoder trip: Feedback device comms failure
Ensure encoder power supply is correct
Ensure baud rate is correct
192
Check encoder wiring
Replace feedback device
Enc5 Drive encoder trip: Checksum or CRC error
Check the encoder signal for noise
Check the encoder cable shielding
193
With EnDat encoders, check the comms resolution and/or carry out the auto-configuration Pr
3.41
Enc6 Drive encoder trip: Encoder has indicated an error
Replace feedback device
194
With SSI encoders, check the wiring and encoder supply setting
Enc7 Drive encoder trip: Initialisation failed
Re-set the drive
Check the correct encoder type is entered into Pr 3.38
Check encoder wiring
195
Check encoder power supply is set correctly
Carry out the auto-configuration Pr 3.41
Replace feedback device
Enc8 Drive encoder trip: Auto configuration on power up has been requested and failed
Change the setting of Pr 3.41 to 0 and manually enter the drive encoder turns (Pr 3.33) and the
196 equivalent number of lines per revolution (Pr 3.34)
Check the comms resolution
Drive encoder trip: Position feedback selected is selected from a Solutions Module slot
Enc9
which does not have a speed / position feedback Solutions Module fitted
197 Check setting of Pr 3.26 (or Pr 21.21 if the second motor parameters have been enabled)
Drive encoder trip: Servo mode phasing failure because encoder phase angle (Pr 3.25 or
Enc10
Pr 21.20) is incorrect
Check the encoder wiring.
Perform an autotune to measure the encoder phase angle or manually enter the correct phase
angle into Pr 3.25 (or Pr 21.20).
198 Spurious Enc10 trips can be seen in very dynamic applications. This trip can be disabled by
setting the overspeed threshold in Pr 3.08 to a value greater than zero. Caution should be used in
setting the over speed threshold level as a value which is too large may mean that an encoder
fault will not be detected.
Drive encoder trip: A failure has occurred during the alignment of the analogue signals of
a SINCOS encoder with the digital count derived from the sine and cosine waveforms and
Enc11
the comms position (if applicable). This fault is usually due to noise on the sine and
cosine signals.
Check encoder cable shield.
161
Examine sine and cosine signals for noise.
Drive encoder trip: Hiperface encoder - The encoder type could not be identified during
Enc12
auto-configuration
Check encoder type can be auto-configured.
162 Check encoder wiring.
Enter parameters manually.
Drive encoder trip: EnDat encoder - The number of encoder turns read from the encoder
Enc13
during auto-configuration is not a power of 2
163 Select a different type of encoder.
Drive encoder trip: EnDat encoder - The number of comms bits defining the encoder
Enc14
position within a turn read from the encoder during auto-configuration is too large.
Select a different type of encoder.
164
Faulty encoder.
Unidrive SP Short Form Guide
Issue Number: 2
Electrical Getting
Menu 0
Installation Started
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Running Advanced
Diagnostics
the motor parameters
Diagnosis
UL Listing
Appendix
Information
47