8
4
Parameter Description
Parameter Description
5.6 Electronic Thermal Relay Capacity (P.9)
P.9 “Electronic thermal relay capacity”
To simulate a thermal relay to prevent the motor from overheating, the electronic thermal relay
employs a built-in program.
Parameter
Factory Setting
Setting Range
Remarks
9
0
0~500A
---
<Setting>
•
Please set P.9 as the rated current of the motor at its rated frequency. The rated frequency of a
squirrel-cage inductive motor made by different countries and areas will be different. Please refer to
the nameplate instruction of the motor.
•
If P.9=0, the electronic thermal relay is disabled.
•
In case the calculated heat by the electronic thermal relay exceeds the upper limit, the alarm will be
activated (lit up), the screen of the operation panel will display
, and the output will be
stopped.
Note: 1. After resetting the inverter, the thermal accumulating record of the electronic thermal relay will be reset
to zero. Attention should be paid.
2. When two or more motors are connected to the inverter, they cannot be protected by the electronic
thermal relay. Install an external thermal relay to each of the motors.
3. When a special motor is employed, the electronic thermal relay is no longer valid. Install an external
thermal relay to each of the motors.
4. For information related to the wiring for an external thermal relay, refer to
P.80~P.84, P.86
.
5.7 DC injection Brake (P.10, P.11, P.12)
P.10 “DC injection brake operation frequency”
P.11 “DC injection brake operation time”
P.12 “DC injection brake voltage”
Parameter
Factory Setting
Setting Range
Remarks
-
-
-
z
H
0
2
1
~
0
z
H
3
0
1
-
-
-
s
0
6
~
0
s
5
.
0
1
1
-
-
-
%
0
3
~
0
%
4
2
1
Related parameters
P.80~P.84, P.86
“
Multi-function terminals selection
”
