Parameter
structure
Keypad and
format
Advanced
parameter
descriptions
Serial comms
Mentor MP Advanced User Guide
135
Issue Number: 4
www.onxcontrol.com
Trip
Data
processing
error:
Access
to
EEPROM
failed
Hardware fault - return drive to supplier
Data
processing
error:
Main
program
stack
overflow
Hardware fault - return drive to supplier
Data
processing
error:
No
Comms
from
power
processor
Hardware fault - return drive to supplier
Bucket
suppressor
capacitor
failure
Hardware fault - return drive to supplier
Overheat
on
bucket
suppressor
or
snubber
circuits
Check internal fan operation
Power
stage
recognition:
identification
code
error
Hardware fault - return drive to supplier
Power
processor:
Watchdog
failure
Hardware fault - return drive to supplier
Power
processor:
Undefined
exception
Hardware fault - return drive to supplier
Power
processor:
Level
overrun
Hardware fault - return drive to supplier
Power
circuit:
Thermistor
1
fault
Hardware fault - return drive to supplier
Power
software
not
compatible
with
user
software
Hardware fault - return drive to supplier
User
processor:
Armature
timing
error
Hardware fault - return drive to supplier
I
t
on
drive
output
current
(Refer
to
Pr
4.16)
20
Ensure the load is not jammed / sticking
Check the load on the motor has not changed
O.ht1
Drive
overheat
(SCR
junction)
based
on
thermal
model
21
Reduce ambient temperature
Reduce overload cycle
O.ht2
Heatsink
over
temperature
22
Check enclosure / drive fans are still functioning correctly
Check enclosure ventilation paths
Check enclosure door filters
Increase ventilation
Decrease acceleration / deceleration rates
Reduce duty cycle
Reduce motor load
O.ht3
External
discharge
resistor
over
temperature
27
The temperature of the external discharge resistor is monitored by the temperature accumulators. When the resistor temperature
(Pr
11.65
) reaches 100 % the drive will trip
See Pr
11.62
, Pr
11.63
and Pr
11.64
O.Ld1
Digital
output
overload:
total
current
drawn
from
24
V
supply
and
digital
outputs
exceeds
200
mA
Check total load on digital outputs (terminals 24, 25 and 26)and +24 V rail (terminal 22)
Motor
speed
has
exceeded
the
over
speed
threshold
7
The drive will trip O.SPd if the armature is open circuit when the drive is in estimated speed mode.
Check armature circuit
If the speed feedback (Pr
3.02
(
di05,
0.40
)) exceeds the over speed threshold (Pr
3.08
) in either direction an over speed trip is
produced. If this parameter is set to zero, the over speed threshold is automatically set to 1.2 x Pr
1.06
(
SE02,
0.23
) or Pr
1.07
(
SE01,
0.22
).
Reduce the speed loop gain (Pr
3.10
(
SP01,
0.61
)) and speed integral (Pr
3.11
(
SP02,
0.62
)) to prevent speed overshoot.
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