Nidec E300 Series - Page 266

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266 Installation and System Design Guide
Issue Number: 1
Autotune 2 Position feedback direction incorrect
12
The drive has tripped during a rotating auto-tune. The cause of the trip can be identified from the associated sub-
trip number.
Recommended actions:
• Check motor cable wiring is correct
• Check feedback device wiring is correct
• Check setting of C12 Drive Encoder Feedback Reverse
• Swap any two motor phases (U, V, W)
Autotune 3 Measured inertia exceeded parameter, commutation signals changed in wrong direction
13
The drive has tripped during a rotating auto-tune or mechanical load measurement test. The cause of the trip can
be identified from the associated sub-trip number.
Recommended actions:
• Check motor cable wiring is correct
• Check feedback device U,V and W commutation signal wiring is correct
• Check setting of C12 Drive Encoder Feedback Reverse
Autotune 4 Drive encoder U commutation signal fail
14
A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC
Servo) and the U commutation signal did not change during a rotating auto-tune.
Recommended actions:
• Check feedback device U commutation signal wiring is correct (Encoder T.7 and T.8)
Autotune 5 Drive encoder V commutation signal fail
15
A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC
Servo) and the V commutation signal did not change during a rotating auto-tune.
Recommended actions:
• Check feedback device V commutation signal wiring is correct (Encoder T.9 and T.10)
Autotune 6 Drive encoder W commutation signal fail
16
A position feedback device with commutation signals is being used (i.e. AB Servo, FD Servo, FR Servo, SC
Servo) and the W commutation signal did not change during a rotating auto-tune.
Recommended actions:
• Check feedback device W commutation signal wiring is correct (Encoder T.11 and T.12)
Autotune 7 Motor number of poles / position feedback resolution set incorrectly
17
An Auto-tune 7 trip is initiated during a rotating auto-tune, if the motor poles or the position feedback resolution
have been set up incorrectly where position feedback is being used.
Recommended actions:
• Check line per revolution for feedback device (C03)
• Check the number of poles (B05)
Autotune No Dir Direction signal not received when starting an auto-tune
78
Direction signal not given while attempting to perform auto-tune. A direction signal must be given within 6 s of
drive enable to prevent this trip while attempting to auto-tune (Auto-tune (B11) >
1)
Recommended actions:
• Check Direction Input 1 (G39) and Direction Input 2 (G40) ensuring a direction signal is received.
• Check control wiring is correct.
• Check control wiring is undamaged.
• Check control sequence from Elevator controller
Trip Description / Recommended action
Sub-trip Reason
1 Position feedback did not change when used during a rotating auto-tune
2
Motor speed did not reach the required speed for rotating auto-tune or mechanical load
measurement
Sub-trip Reason
1 Measured inertia > parameter (E15) during mechanical load measurement
2 Commutation signals changed in the wrong direction during a rotating auto-tune
3 The mechanical load test has been unable to identify the motor inertia