6
-68
Reducing Drive Overheating Pre-Alarm Warning Levels
The Drive detects the temperature of the cooling fins using the thermistor, and protects the Drive from over-
heating. You can receive Drive overheating pre-alarms in units of 10
°
C.
The following overheating pre-alarm warnings are available: Stopping the Drive as error protection, and con-
tinuing operation, with the alarm OH (Radiation fins overheating) on the Digital Operator flashing.
Related Parameters
* Factory settings will vary based on drive capacity.
Parameter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control Methods
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vector
Open
Loop
Vector
2
L8-02
Overheat Alarm
Level
When the cooling fin temperature
exceeds the value set in this
parameter, an Overheat Alarm
(OH) will occur.
50
to
130
95
°
C*
No
A
A
A
A
A
OH Pre-Alarm
Lvl
L8-03
Overheat
Pre-Alarm
Operation
Selection
Selects the Drive operation upon
an OH pre-alarm detection.
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
3: Alarm Only
0 to 3
3
No
A
A
A
A
A
OH Pre-Alarm
Sel
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