Specifications

42
Torque Detection
Torque detection selection 1, 2 L6-01，L6-04
Torque detection level 1, 2 L6-02，L6-05
Torque detection time 1, 2 L6-03，L6-06
If excessive load is applied on the machine, alarm signals
are output to the multi-function terminals M1-M2, P1-PC
and P2-PC. The Varispeed G7 has two kinds of overtorque/
undertorque detection.
Overtorque/undertorque detection signal is activated by
setting torque detection selection 1 (NO contact: 0B, NC
contact: 17) or torque detection selection 2 (NO contact:
18, NC contact: 19) in output terminal function selection
H2-01, H2-02 or H2-03.
Torque detection level is the current level (inverter rated
output current 100 ％) at V/f control and the motor torque
level (motor rated torque 100 ％) at vector control.
●
Detection of overtorque
To detect overtorque, select 1, 2, 3 or 4 for the set value
of L6-01 or L6-04. L6-02 or L6-05 becomes the over-
torque detection level.
Motor Current
Overtorque Detection Time
（L6-03，L6-06）
＊
Overtorque Detection
Level (L6-02, L6-05)
Multi-function Output
Signal (Overtorque Detection
Signal) Terminal M1-M2,
P1-PC, P2-PC
Time
ONON
＊ The releasing width of overtorque detection is approx. 10 ％ of
the inverter rated current (or motor rated torque).
●
Detection of undertorque
To detect undertorque, select 5, 6, 7 or 8 for the set
value of L6-01 or L6-04. L6-02 or L6-05 becomes the
undertorque detection level.
Motor Current
Undertorque Detection Time
(L6-03, L6-06)
＊
Multi-function Output Signal
(Undertorque Detection Signal)
Terminal M1-M2, P1-PC,
P2-PC
Time
ONON
＊ The releasing width of undertorque detection is approx. 10 ％
of the inverter rated current (or motor rated torque).
Undertorque Detection
Level (L6-02, L6-05)
Setting Values of L6-01 and L6-04
The following table shows relations between setting values
of L6-01 or L6-04 and alarms at overtorque/undertorque
detection.
Constant No.
L6-01
L6-02
L6-03
L6-04
L6-05
L6-06
0 to 8
0 to 300 ％
0.0 to 10.0 s
0 to 8
0 to 300 ％
0.0 to 10.0 s
0
150 ％
0.1 s
0
150 ％
0.1 s
Torque detection 1 selection
Torque detection 1 level
Torque detection 1 time
Torque detection 2 selection
Torque detection 2 level
Torque detection 2 time
Function
Setting for Overtorque/Undertorque Detection Function
Setting
Range
Factory
Setting
0
1
2
3
4
5
6
7
8
Setting
Value
Function
Overtorque/undertorque detection disabled
Overtorque detection only during speed agree/operation
continued after detection (warning)
Overtorque detection at any time during operation/operation
continued after detection (warning)
Overtorque detection only during speed agree/output
shut off at detection (protective operation)
Overtorque detection at any time during operation/output
shut off at detection (protective operation)
Undertorque detection only during speed agree/operation
continued after detection (warning)
Undertorque detection at any time during operation/operation
continued after detection (warning)
Undertorque detection only during speed agree/output
shut off at detection (protective operation)
Undertorque detection at any time during operation/output
shut off at detection (protective operation)
Cont
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