YASKAWA Varispeed G7 Series User Manual

6 -54
 Detecting Motor Torque
If an excessive load is placed on the machinery (overtorque) or the load is suddenly lightened (undertorque),
you can output an alarm signal to multi-function output terminal M1-M2, P1-PC, P2-PC, P3-C3, or P4-C4.
To use the overtorque/undertorque detection function, set B, 17, 18, 19 (overtorque/undertorque detection NO/
NC) in one of the following constants: H2-01 to H2-05 (multi-function output terminals M1-M2, P1-PC, P2-
PC, P3-C3, and P4-C4 function selection).
The overtorque/undertorque detection level is the current level (Inverter rated output current 100%) in V/f
control, and the motor torque (motor rated torque 100%) in vector control.
Related Constants
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vec-
tor
Open
Loop
Vector
2
L6-01
Torque detec-
tion 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
Torq Det 1 Sel
L6-02
Torque detec-
tion level 1
Open-loop vector control: Motor
rated torque is set as 100%.
V/f control: Inverter rated current
is set as 100%.
0 to
300
150% No A A A A A 4A2H
Torq Det 1 Lvl
TOE-S616-60.1.book 54 ページ ２０１７年８月４日 金曜日 午後３時４１分

YASKAWA Varispeed G7 Series Specifications

General

Brand	YASKAWA
Model	Varispeed G7 Series
Category	Inverter
Language	English