Alliance Laundry Systems CABINET FREESTANDING 9001889R7 - Manual (Page 60)

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Inverter Drive Error Codes
9001889 58
Stall prevention
(overcurrent) During acceleration–If a current of more
than 150% of the rated inverter current
flows in the motor this function stops the
increase in frequency until the overload
current reduces to prevent the inverter
from resulting in overcurrent shut-off.
When the overload current has reduces
below 150%, this function increases the
frequency again.
During constant-speed operation–If a
current of more than 150%, this function
lowers the frequency again.
When the overload current has reduces
below 150%, this function increases the
frequency again.
During deceleration–If a current of more
than 150% of the rated inverter current
flows in the motor, this function stops the
decrease in frequency until the overload
current reduces to prevent the inverter
from resulting in overcurrent shut-off.
When the overload current has reduced
below 150%, this function decreases the
frequency again.  Check to make sure
the machine is
loaded properly and
that the load is
balanced.
 Verify that the AC
drive’s parameters
are correct.
 Load the machine
properly to
distribute the load
evenly.
 Contact Alliance
Laundry Systems’
Customer Service
department.
Stall prevention
(overvoltage) During deceleration-If the regenerative
energy of the motor exceeds the brake
capability, this function stops the decrease
in frequency to prevent overvoltage
shutoff. As soon as the regenerative
energy has reduced, deceleration resumes. Check to make sure
the machine is loaded
properly and that the
load is balanced. Load the machine
properly to distribute
the load evenly.
PU stop A stop made by pressing the key of
the PU has been set in Pr. 75 “PU stop
selection”.
Check for a stop made
by pressing the
key of the operation
panel during external
operation.
Perform operation
correctly.
This alarm appears if:
 The RES signal is on;
 You attempted to set any parameter
value in the external operation mode;
 You attempted to change the operation
mode during operation;
 You attempted to set any parameter
value outside its setting range.
 You attempted to set any parameter
value during operation (while signal
STF or STR is ON).
 You attempted to set any parameter
value while parameter write is being
inhibited in Pr. 77 “parameter write
inhibit selection”.
Perform operation
correctly.
Operation
Panel
Indication
Name Description and NOTES Check point Corrective action
STOP
RESET
STOP
RESET