IDEX Health & Science VS-606V7 Series - Manual (Page 135)

135
Protective
Operation
Output is shut
OFF and motor
coasts to a
stop.
RH (Installed type braking
resistor overheating)
The protection function has
operated.
• The declaration time
is too short.
• The regenerative
energy from the
motor is too large.
⇓
• Increase the
deceleration time.
• Reduce the
regenerative load.
(Internal Braking Transistor
Fault)
The braking transistor is not
operating properly.
• Replace the Inverter
OL1 (Motor overload)
Motor overload protection
operates by built-in electronic
thermal overload relay. • Check the load size
or V/f pattern setting
(parameters n011 to
n017)
• Set the motor rated
current shown on the
nameplate by
parameter n036.
OL2 (Inverter overload)
Inverter overload protection
operates by built-in electronic
thermal overload relay. • Check the load size
or V/f pattern setting
(parameters n011 to
n017)
• Check the inverter
capacity
OL3 (Over torque detection)
V/f mode: Inverter output
current exceeded the
preset value in
parameter n098.
Vector mode: Motor current or
torque exceeded the
preset value in
parameters n097 and
n098.
When over torque is detected,
inverter performs operation
according to the preset setting
of parameter n096.
Check the driven
machine and correct
the cause of the fault,
or increase the value of
parameter n098 up to
the highest value
allowed for the
machine.
Alarm Display
Inverter
Status
Explanation
Causes and
Corrective Actions
Digital
Operator
RUN (Green)
ALARM (Red)