Emerson M200-01200024A10101AB100 Quick Start Manual page 52

Trip
Condition
code
Two or more parameters are
dESt writing to the same destination
parameter
dr.CF Drive configuration
Default parameters have been
EEF
loaded
Et An External trip is initiated
FAN.F Fan fail
Fi.Ch File changed
FI.In Firmware Incompatibility
HFxx trip Hardware faults
Output current overload timed out
It.Ac
2
(I t)
Braking resistor overload timed out
It.br
2
(I t)
no.PS No power board
O.Ld1 Digital output overload
Motor frequency has exceeded the
O.SPd
over frequency threshold
Oh.br Braking IGBT over-temperature
Oh.dc DC bus over temperature
Oht.C Control stage over-temperature
Inverter over temperature based
Oht.I
on thermal model
Oht.P Power stage over temperature
Oht.r Rectifier over temperature
OI.A1 Analog input 1 over-current
Instantaneous output over current
OI.AC
detected
52
Description
The dESt trip indicates that destination output parameters of two
or more logic functions (Menus 7 and 8) within the drive are
writing to the same parameter.
Contact the supplier of the drive.
The EEF trip indicates that default parameters have been
loaded. The exact cause/reason of the trip can be identified from
the sub-trip number (see Drive User Guide).
The cause of the trip can be identified from the sub trip number
displayed after the trip string.
Sub-trip
1 External Trip = 1
Refer to Drive User Guide.
Indicates the fan or fan circuitry has failed
A file has been changed, power cycle to clear the trip
The user firmware is incompatible with the power firmware.
Internal drive hardware fault (see Drive User Guide).
The It.Ac trip indicates a motor thermal overload based on the
output current and motor thermal time constant. The drive will
trip on It.Ac when the accumulator gets to 100 %.
This can occur when:
•
There is excessive mechanical load
• Ensure the load is not jammed / sticking
• Check the load on the motor has not changed
• Ensure the motor rated current is not zero
Braking resistor overload has timed out. This can be caused by
excessive braking resistor energy.
No communication between the power and control boards.
The total current drawn from 24 V user supply or from the digital
output has exceeded the limit.
Excessive motor speed (typically caused by mechanical load
driving the motor).
Braking IGBT over-temperature. Detected by thermal model
DC bus component over temperature based on a software
thermal model.
Control stage over-temperature detected.
IGBT junction over-temperature has been detected based on a
software thermal model.
This trip indicates that a power stage over-temperature has
been detected.
The Oht.r trip indicates that a rectifier over-temperature has
been detected.
Current input on analog input 1 exceeds 24 mA.
The instantaneous drive output current has exceeded.The set
limit.
Possible solutions:
• Increase acceleration/deceleration rate
• If seen during autotune reduce the voltage boost
• Check for short circuit on the output cabling
• Check integrity of the motor insulation using an insulation
tester
• Is the motor cable length within limits for the frame size
• Reduce the values in the current loop gain parameters
Unidrive M200-201 Quick Start Guide
Reason
Issue Number: 6