YASKAWA E7U, Programming Manual

Page: 74 / 176

Programming 68
Function: Trq Det 1 N.C.
Setting: 17
The Trq Det 1 function ties a digital output to the overtorque/undertorque sensing capabilities of the Drive. If a digital output
is configured as Trq Det 1 N.C., whenever the output current exceeds the level of L6-02 for at least the length of time set in
L6-03, the digital output will open.
The torque detection function has a built-in hysteresis of 10% of the Drive rated output current.
Fig. 46 Trq Det 1 N.C. Timing Diagram
Function: Reverse Dir
Setting: 1A
The Reverse Dir digital output will close whenever the Drive is turning the motor in the direction that corresponds to the
reverse direction (CW or CCW). The Reverse Dir digital output will remain closed during deceleration when the rotation is in
the reverse direction.
Fig. 47 Reverse Direction Timing Diagram
Undertorque Detection
Signal
t
L6-03
L6-02
t
Output Current
b
ON (Closed)
OFF (Open)
L6-01 = 5,6,7, or 8
L6-02 = TD Level 1
L6-03 = TD Delay Time 1
b = 10% of Drive rated current
TIME
Output Frequency
Fwd RUN
Rev RUN
Reverse Dir Output
ON (Closed)
ON (Closed)
ON (Closed)
OFF (Open)
OFF (Open)
t
OFF (Open)
Reverse Dir Output
TIME