Unidrive M200/201 Control Quick Start Guide
51
Issue Number: 3
SCL
Control word watchdog has timed
out
The control word has been enabled and has timed out
SL.dF
Option module in option slot 1 has
changed
Option slot 1 on the drive is a different type to that installed
when parameters were last saved on the drive.
SL.Er
Option module in option slot 1 has
detected a fault
Option module in option slot 1 on the drive has detected an
error.
SL.HF
Option module 1 hardware fault
Option slot 1 on the drive has indicated a hardware fault.
SL.nF
Option module in option slot 1 has
been removed
The option module in option slot 1 on the drive has been
removed since the last power up.
SL.tO
Option module watchdog function
service error
The option module installed in Slot 1 has started the option
watchdog function and then failed to service the watchdog
correctly.
So.St
Soft start relay failed to close, soft
start monitor failed
Soft start relay in the drive failed to close or the soft start
monitoring circuit has failed.
St.HF
Hardware trip has occurred during
last power down
Hardware trip (HF01 –HF19) has occurred and the drive has
been power cycled. Enter 1299 to
xx.000
to clear trip
Sto
No Safe Torque Off board fitted
Internal STO board not fitted correctly.
th
Motor thermistor over-temperature
The motor thermistor connected to terminal 14 (digital input 5)
on the control connections has indicated a motor over
temperature.
th.br
Brake resistor over temperature
The
th.br
trip is initiated if the hardware based braking resistor
thermal monitoring is connected and the resistor overheats.
tH.Fb
Internal thermistor has failed
Internal thermistor has failed.
thS
Motor thermistor short circuit
The motor thermistor connected to terminal 14 (digital input 5)
on the control connections, is short circuit or low impedance
(<50
Ω
).
tun.S
Autotune test stopped before
completion
The drive was prevented from completing an autotune test,
because either the drive enable or the drive run signals were
removed.
tun.1
Autotune 1
The drive has tripped during a rotating autotune. The cause of
the trip can be identified from the sub-trip number.
Refer to the
Control User Guide
.
tun.3
Autotune 3
RFC-A mode only.
The drive has tripped during a rotating auto-tune or mechanical
load measurement. The cause of the trip can be identified from
the associated sub-trip number.
Refer to the
Control User Guide
.
U.OI
User OI ac
The
U.OI
trip is initiated if the output current of the drive exceeds
the trip level set by
User Over Current Trip Level
. Refer to the
Control User Guide
.
Trip
code
Condition
Description
Sub-trip
Reason
2
The motor did not reach the required
speed during rotating auto-tune or
mechanical load measurement.
Sub-trip
Reason
1
Measured inertia has exceeded the
parameter range during a mechanical
load measurement.
3
The mechanical load test has been
unable to identify the motor inertia
