Control Techniques UNIDRIVE SP1201 Guía Rápida página 41

Safety Product Mechanical
Information Information Installation
Trip
Enc7 Drive encoder trip: Initialisation failed
Re-set the drive
195
Check the correct encoder type is entered into Pr 3.38
Check encoder wiring
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 Pr
Enc10
21.20) is incorrect
Check the encoder wiring.
198
Perform an autotune to measure the encoder phase angle or manually enter the correct phase
angle into Pr
Spurious Enc10 trips can be seen in very dynamic applications. This trip can be disabled by setting
the speed threshold in Pr
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 analog signals of a
SINCOS encoder with the digital count derived from the sine and cosine waveforms and the
Enc11
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.
Drive encoder trip: The number of periods per revolution calculated from encoder data
Enc15
during auto-configuration is either less than 2 or greater than 50,000.
Linear motor pole pitch / encoder ppr set up is incorrect or out of parameter range
165 i.e. Pr 5.36 = 0 or Pr 21.31 = 0.
Faulty encoder.
Drive encoder trip: EnDat encoder - The number of comms bits per period for a linear
Enc16
encoder exceeds 255.
Select a different type of encoder.
166
Faulty encoder.
Drive encoder trip: The periods per revolution obtained during auto-configuration for a
Enc17
rotary SINCOS encoder is not a power of two.
Select a different type of encoder.
167
Faulty encoder.
Unidrive SP Short Form Guide
Issue Number: 1
Electrical Getting
Installation Started
3.25 21.20
(or Pr ).
3.08
to a value greater than zero. Caution should be used in setting the
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Running Advanced
Menu 0
the motor parameters
Diagnosis
UL Listing
Diagnostics Appendix
Information
41