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462 E300 Design Guide
Issue Number: 1
Encoder 7 Initialization failed
195
The Encoder 7 trip indicates that the set-up parameters for the position feedback device are incorrect. The feedback device
which has caused the trip can be identified by the sub-trip number.
Recommended actions:
• Reset the trip and perform a save
• Check the encoder is connected correctly
• Check the correct encoder type is selected Drive Encoder Type (C01)
• Check the encoder power supply setting Drive Encoder Voltage Select (C04)
• Check the correct encoder comms baud rate is selected in Drive Encoder Comms Baud Rate (C06)
• Carry out an encoder auto-configuration Drive Encoder Auto Configuration Select (C02) = Enabled
• Carry out re-initialize with Position Feedback Initialize (C18)
• Check Position Feedback Initialized Indication (C19)
• Faulty encoder, replace
Encoder 8 Position feedback interface has timed out
196
The Encoder 8 trip indicates that position feedback interface communications time exceeds 250 μs. The feedback device
which has caused the trip can be identified by the sub-trip number.
Recommended actions:
• Ensure the encoder is connected correctly
• Check the correct encoder type is selected Drive Encoder Type (C01)
• Ensure that the encoder is compatible with the drive encoder specification
• Increase the encoder baud rate in Drive Encoder Comms Baud Rate (C06)
Encoder 12 Encoder could not be identified during auto-configuration
162
The Encoder 12 trip indicates that the drive is communicating with the encoder but the encoder type is not recognized.
Recommended actions:
• Check to see if auto-configuration is supported for the encoder type
• Disable Drive Encoder Auto Configuration Select (C02) and enter the encoder set-up parameters manually
Encoder 13 Data read from the encoder is out of range during auto-configuration
163
The Encoder 13 trip indicates that the data read from the encoder was out of the range during auto-configuration. No
parameters will be modified with the data read from the encoder as a result of auto configuration.
Recommended actions:
• Check to see if auto-configuration is supported for the encoder type being used
• Disable Drive Encoder Auto Configuration Select (C02) and enter the encoder set-up parameters manually
Encoder Not Init Encoder initialization failure
162
The drive's encoder interface has not initialized prior to travel.
This may be because the encoder has an older / slower comms interface. Drive Encoder Additional Power Up Delay (C10)
may be increased to allow extra time for the encoder comms to initialize Position Feedback Initialize (C18) may be used to
manually initialize the feedback, and Position Feedback Initialized Indication (C19) indicates the initialization status.
Recommended actions:
• Ensure the encoder is connected correctly.
• Ensure that the encoder is compatible
Fast disable err Fast disable control sequence error
65
The Fast disable input sequence is incorrect i.e. the Fast disable input is not applied during the stop following brake apply,
or removed during the start. The Fast disable input does not become active, On (1) following brake apply and after 4 s, or
the Fast disable input failed to turn Off (0) after 6 s during the start whilst waiting for the Safe Torque Off (STO), Drive
enable input to become active.
Recommended actions:
• Check the control wiring arrangement (default, Control terminal 27) Fast disable input
• Check T27 Digital Input 04 State (F06) during operation for the correct sequence Off (0) or On (1)
• Disable the Fast disable input by setting the control input destination from Fast Disable (B27) to 00.000
Trip Diagnosis
Sub-trip Reason
1 Drive position feedback interface
Sub-trip Reason
1 Drive position feedback interface
Sub-trip Reason
1 Drive position feedback interface
Sub-trip Reason Parameter
11 P1 Rotary lines per revolution error C03
14 P1 Rotary turns bits error C07
15 P1 Communications bits error C08
16 P1 Calculation time is too long C24
17 P1 Line delay measured is longer than 5 μs C26
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