Omron SYSDRIVE 3G3MV A2002, Руководство пользователя

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8-5
Fault
display
Probable cause and remedy Fault name and
meaning
OL1
Motor overload (OL1)
The electric thermal relay
actuated the motor
overload protective
function.
Calculate the heat
radiation of the motor
from the output current of
the Inverter based on the
rated motor current
(n036), motor protection
characteristics (n037),
and motor protective time
setting (n038).
·
The load is excessive.
®
Reduce the load.
®
Increase the motor capacity.
·
The V/f setting is incorrect.
®
Reduce the V/f set voltage.
·
The value in n11 for maximum voltage frequency
is low.
®
Check the motor nameplate and set n11 to the
rated frequency.
·
The acceleration/deceleration time is too short.
®
Increase the acceleration/deceleration time.
·
The value in n036 for rated motor current is incor-
rect.
®
Check the motor nameplate and set n036 to the
rated current.
·
The Inverter is driving more than one motor.
®
Disable the motor overload detection function
and install an electronic thermal relay for each
of the motors.
The motor overload detection function is
disabled by setting n036 to 0.0 or n037 to 2.
·
The motor protective time setting in n038 is short.
®
Set n038 to 8 (the default value).
OL2
Inverter overload (OL2)
The electronic thermal
relay has actuated the
Inverter overload
protective function.
·
The load is excessive.
®
Reduce the load.
·
The V/f setting is incorrect.
®
Reduce the V/f set voltage.
·
The acceleration/deceleration time is too short.
®
Increase the acceleration/deceleration time.
·
The Inverter capacity is insufficient.
®
Use an Inverter model with a higher capacity.
Maintenance Operations Chapter 8