Emerson Powerdrive F300 User Manual page 272

Safety Product Mechanical
information information installation
Trip
Over Frequency Output frequency has exceeded the maximum frequency threshold
222 The Over Frequency trip indicates that the output frequency has exceeded 560 Hz for more than 4 ms.
Over Speed Motor speed has exceeded the over speed threshold
In open loop mode, if the Output Frequency (05.001) exceeds the threshold set in Over Speed Threshold (03.008) in either
direction an Over Speed trip is produced. In RFC-A and RFC-S mode, if the Speed Feedback (03.002) exceeds the Over
Speed Threshold in Pr 03.008 in either direction an Over Speed trip is produced. If Pr 03.008 is set to 0.0 the threshold is
7
then equal to 1.2 x the value set in Pr 01.006.
Recommended actions:
• Reduce the Speed Controller Proportional Gain (03.010) to reduce the speed overshoot (RFC-A, RFC-S modes only)
Over Volts DC bus voltage has exceeded the peak level or maximum continuous level for 15 seconds
The Over Volts trip indicates that the DC bus voltage has exceeded the VM_DC_VOLTAGE[MAX] or
VM_DC_VOLTAGE_SET[MAX] for 15 s. The trip threshold varies depending on voltage rating of the drive as shown below.
Voltage rating
Sub-trip Identification
Source
Control
2
system
Control
system
Power
system
Recommended actions:
• Increase deceleration ramp (Pr 00.004)
• Decrease the braking resistor value (staying above the minimum value)
• Check nominal AC supply level
• Check for supply disturbances which could cause the DC bus to rise
• Check motor insulation using a insulation tester
Phase Loss Supply phase loss
The Phase Loss trip indicates that the drive has detected an input phase loss or large supply imbalance. The drive will
attempt to stop the motor before this trip is initiated. If the motor cannot be stopped in 10 seconds the trip occurs
immediately. The Phase Loss trip works by monitoring the ripple voltage on the DC bus of the drive, if the DC bus ripple
exceeds the threshold, the drive will trip on Phase Loss. Potential causes of the DC bus ripple are input phase loss, Large
supply impedance and severe output current instability.
Source
Control
system
Power
system
32
Control
system
Input phase loss detection can be disabled when the drive is required to operate from the DC supply or from a single phase
supply in Input Phase Loss Detection Mode (06.047).
Recommended actions:
• Check the AC supply voltage balance and level at full load
• Check the DC bus ripple level with an isolated oscilloscope
• Check the output current stability
• Reduce the duty cycle
• Reduce the motor load
• Disable the phase loss detection, set Pr 06.047 to 2.
272
Electrical Getting Basic
installation started parameters the motor
VM_DC_VOLTAGE[MAX]
200 415
400 830
575 990
690 1190
xx y
00 0
00 0
Power module
0
number
xx y
00 0
Power module Rectifier
number number
Running NV Media Card
Optimization
Operation
Diagnosis
VM_DC_VOLTAGE_SET[MAX]
410
815
970
1175
01: Instantaneous trip when the DC bus voltage exceeds
VM_DC_VOLTAGE[MAX].
02: Time delayed trip indicating that the DC bus voltage is above
VM_DC_VOLTAGE_SET[MAX].
00: Instantaneous trip when the DC bus voltage exceeds
VM_DC_VOLTAGE[MAX].
00: Phase loss detected based on control system feedback. The drive
attempts to stop the drive before tripping unless bit 2 of Action On Trip
Detection (10.037) is set to one.
00: Phase loss has been detected by the rectifier module. Ensure that on
a single phase supply, the unused supply terminal is connected to one of
the other supply terminals.
01: Mains loss has been detected by the rectifier module in a multi-power
module system, where this must be treated as a phase loss condition to
prevent damage to the drive.
Onboard Advanced Technical
Diagnostics
PLC parameters data
zz
zz
Powerdrive F300 User Guide
UL listing
information
Issue Number: 2