Yaskawa E7 Drive User Manual - Manual (Page 123)

Programming 5 - 49
After selecting the proper detection scheme the Torque Detection Level (L6-02) must be specified. If the current level read by
the output current transformers rises above (overtorque) or drops below (undertorque) this level, and remains there for at least
the Torque Detection Time (L6-03), then the Torque Detection Function will change the state of any digital output configured
for Torque Detection (H2-01/H2-02= “B: Trq Det 1 N.O.”, or “17: Trq Det 1 N.C.”).
Fig 5.38 Over Torque Detection
Fig 5.39 Under Torque Detection
Out
put
Curren
N
or
m
ally
Open T
orqu
e
Det
ec
tio
n
D
ig
ita
l O
utp
ut
t
CLOSED
L6-03 L6-03
L6-02
* *
* When the output current drops below the Torque Detection Level by
approximately 10% of the Drive’s rated output current the digital output is reset.
Closed
Open
Torque detection level -10%
TIME
Current
L6-02
Out
put
Current
N
or
m
ally
Op
en
T
orque
Det
ec
tio
n Di
gi
ta
l
Out
put
L6-03 L6-03
L6-02
*
* When the output current rises above the Torque Detection Level by
approximately 10% of the Drive’s rated output current the digital output is reset.
*
t
t
Closed
Open
Torque detection level 10%
TIME
TM_E7_01_07182008.book Page 49 Wednesday, July 23, 2008 2:35 PM