47
EN
10 Error Detection
You can detect the controller and electric screwdriver states, judge it to be an error, and stop the action.
Even in cases where automatic machine control is performed with PLC, in conditions where the two F-NG and NG
output signals are ON at the same time, you can judge it to be in error mode.
Terminal
No.
Connected input signal
Connection example
14
Screw fastening NG (F-NG)
Connect the LED or PLC input (output the +24 V DC level)
z
z
State where two output signals are set to ON at the same time
20
Operations NG
22
Output signal positive common wire
C24 V DC (connectable to terminal No.1)
Detection of connection slip
When the controller and electric screwdriver connection during the machine operation slips out, it is detected as an
error and operations stop.
When in error mode, a warning sounds and the [C-UP / F-NG] LED and [OK / NG] LED lights up in red, and the F-NG
and NG output signal turns ON.
The message below is displayed on the LCD.
To release an error mode, turn off the power and check the connection of electric screwdriver and controller, and then
re-insert the power.
If you cannot release the error mode, there is a possibility of a connection cord disconnection, or failure in the main
machine, etc. (p. 48)
Detection of motor startup error
If a state is detected where the motor will not rotate even when the electric screwdriver is operated, it is detected as a
motor startup error, and operations stop.
When in error mode, a warning sounds and the [C-UP / F-NG] LED and [OK / NG] LED lights up in red, and the F-NG
and NG output signal turns ON.
The message below is displayed on the LCD.
To release an error mode, turn off the power and remove the bit, re-insert the power, and then perform startup
operation in no-load state to check the action. (Remove the bit to exclude the effects of bit inertia.)
If the error mode repeatedly occurs, there is a possibility of failure in the main machine, etc. (p. 48)
Detection of screw loosened lock
Reverse rotation startup for the device rotates at the maximum speed (maximum lock).
If the screw tightened by a forward rotation torque larger than the reverse rotation output torque of this device is
loosened, the motor stops at the point where the reverse rotation lock is detected.
At this time, the F-NG buzzer sounds, the [C-UP / F-NG] LED lights up in red for 0.3 seconds, and the F-NG output
signal is ON for 0.3 seconds.
CAUTION
z
z
When a screw loosening lock error has occurred, use a separate screwdriver to loosen the screw.
TV07783-1_DLV10C_en.indb 47
2017/06/27 17:41:42
