YASKAWA Varispeed G7 - Page 177

5-64
Torque Detection: L6
User constants for the torque detection function are shown in the following table.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
L6-01
Overtorque/
Under-
torque
detection
selection 1
0: Overtorque/undertorque
detection disabled.
1: Overtorque detection only
with speed agreement;
operation continues after
overtorque (warning).
2: Overtorque detected
continuously during
operation; operation
continues after overtorque
(warning).
3: Overtorque detection only
with speed agreement;
output stopped upon
detection (protected
operation).
4: Overtorque detected
continuously during
operation; output stopped
upon detection (protected
operation).
5: Undertorque detection only
with speed agreement;
operation continues after
overtorque (warning).
6: Undertorque detected
continuously during
operation; operation
continues after overtorque
(warning).
7: Undertorque detection only
with speed agreement;
output stopped upon
detection (protected
operation).
8: Undertorque detected
continuously during
operation; output stopped
upon detection (protected
operation).
0 to 8 0 No A A A A A 4A1H 6-53
Torq Det 1
Sel
L6-02
Overtorque/
Under-
torque
detection
level 1
Open-loop vector control:
Motor rated torque is set as
100%.
V/f control: Inverter rated cur-
rent is set as 100%.
0 to
300
150% No A A A A A 4A2H 6-53
Torq Det 1
Lvl
L6-03
Overtorque/
Under-
torque
detection
time 1
Sets the overtorque/under-
torque detection time in 1-sec-
ond units.
0.0 to
10.0
0.1 s No A A A A A 4A3H 6-54
Torq Det 1
Time