Automatic Trip Reset; Setting Trip Conditions - Parker 690+ Series Product Manual

6-4
Trips and Fault Finding

Automatic Trip Reset

Using the keypad, the drive can be configured to automatically attempt to reset a trip when an
attempt is made to start driving the motor, or after a preset time once the trip condition has
occurred. The following function blocks (MMI menus) are used to enable automatic trip resets.

Setting Trip Conditions

The following function blocks (MMI menus) are used to set trip conditions:
Trip Message and Meaning
NEGATIVE SLIP F
TR TOO LARGE
TR TOO SMALL
MAX RPM DATA ERR
STACK TRIP
LEAKGE L TIMEOUT
POWER LOSS STOP
MOTR TURNING ERR
MOTR STALLED ERR
INVERSE TIME
PHASE FAIL
Seq & Ref::Auto Restart (Auto-Reset)
Seq & Ref::Sequencing Logic
Trips::I/O Trips
Trips::Trips Status
www.comoso.com
Possible Reason for Trip
Autotune has calculated a negative slip frequency,
which is not valid. Nameplate rpm may have been set
to a value higher than the base speed of the motor.
Check nameplate rpm, base frequency, and pole
pairs are correct.
The calculated value of rotor time constant is too
large. Check the value of nameplate rpm.
The calculated value of rotor time constant is too
small. Check the value of nameplate rpm.
This error is reported when the MAX SPEED RPM is set
to a value outside the range for which Autotune has
gathered data. Autotune gathers data on the motor
characteristics up to 30% beyond "max speed rpm". If
MAX SPEED RPM is later increased beyond this range,
the drive had no data for this new operating area,
and so will report an error. To run the motor beyond
this point it is necessary to re-autotune with MAX
SPEED RPM set to a higher value.
The drive was unable to distinguish between an
overcurrent/Dsat or overvoltage trip
The leakage inductance measurement requires a test
current to be inserted into the motor. It has not been
possible to achieve the required level of current.
Check that the motor is wired correctly.
Power Loss Stop sequence has ramped Speed
Setpoint to zero or timed out
The motor must be stationary when starting the
Autotune
The motor must be able to rotate during Autotune
The inverse time current limit is active:
motor loading is too great:
•
motor current >150% for 60s in Constant duty
motor current >110% for 60s in Quadratic duty
fixed or autoboost levels are too high
•
An input supply is missing:
Supply phase wire break
• Supply phase wire break
• Blown supply fuse
• Tripped supply circuit breaker
Table 6-1 Trip Messages
690+ Series AC Drive