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Powerdrive F300 User Guide 271
Issue Number: 2
OI ac Instantaneous output over current detected
3
The instantaneous drive output current has exceeded above VM_DRIVE_CURRENT_MAX.
Recommended actions:
• Acceleration/deceleration rate is too short
• If seen during auto-tune reduce the voltage boost
• Check for short circuit on the output cabling
• Check integrity of the motor insulation using an insulation tester
• Check feedback device wiring
• Check feedback device mechanical coupling
• Check feedback signals are free from noise
• Is motor cable length within limits for the frame size
• Reduce the values in the speed loop gain parameters - (Pr 03.010, 03.011, 03.012) or (Pr 03.013, 03.014, 03.015)
• Has the phase angle autotune been completed? (RFC-S mode only)
• Reduce the values in current loop gain parameters (RFC-A, RFC-S modes only)
OI dc Power module over current detected from IGBT on state voltage monitoring
109
The OI dc trip indicates that the short circuit protection for the drive output stage has been activated.
Recommended actions:
• Disconnect the motor cable at the drive end and check the motor and cable insulation with an insulation tester
• Replace the drive
OI Snubber Snubber over-current detected
92
The OI Snubber trip indicates that an over-current condition has been detected in the rectifier snubber circuit. The reason
for the trip can be identified by the sub-trip number.
Recommended actions:
• Ensure the internal EMC Filter is installed
• Ensure the motor cable length does not exceed the maximum for selected switching frequency
• Check for supply voltage imbalance
• Check for supply disturbance such as notching from a DC drive
• Check the motor and motor cable insulation with an insulation tester
• Fit an output line reactor or sinusoidal filter
Option Disable Option module does not acknowledge during drive mode changeover
215
The Option Disable trip indicates that the option module did not acknowledge notifying the drive that communications with
the drive has been stopped during the drive mode changeover with in the allocated time.
Recommended trip:
• Reset the trip
• If the trip persists replace the option module
Out Phase Loss Output phase loss detected
98
The Out Phase Loss trip indicates that a phase loss has been detected at the drive output. If Output Phase Loss Detection
Enable (06.059) = 1 then output phase loss is detected as follows:
1. When the drive is enabled short pulses are applied to make sure each output phase is connected.
2. During running the output current is monitored and the output phase loss condition is detected if the current contains
more than TBD % negative phase sequence current for TBDs.
Recommended action:
• Check motor and drive connections
• To disable the trip set Output Phase Loss Detection Enable (06.059) = 0
Trip Diagnosis
Source xx y zz Description
Control
system
00
Rectifier
number
00
Instantaneous over-current trip when the measured a.c. current
exceeds VM_DRIVE_CURRENT[MAX].
Power
system
Power
module
number
0
Source xx y zz Description
Power
system
Power
module
number
Rectifier
number
00 Rectifier snubber over-current trip detected.
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