Main Terminology - HIOS BLT-AY-61 Operation Manual

■ Main Terminology

1. Tightening Check (setting the impact number)
To check that the screw has been tightened properly or to tighten the screw further, the
screw is tightened two or three times after the initial tightening. A tightening check can also
be referred to as a second tightening or re-tightening.
2. Torque Up
After the screw has been tightened and the tightening torque reaches the set torque, the
electric driver clutch disengages.
3. UP Trigger
Used when the clutch signal is received on the upslope of the cam when the bit is rotating at
high speed.
4. DOWN Trigger
Used when the clutch signal is received on the down slope of the cam when the bit is rotat-
ing at low speed.
5. Input Method
Signal input to the unit is through a photo coupler with a maximum current of 10 mA.
If an open collector connection is used, connect the emitter to GND and the input to the col-
lector.
(Caution)
Do not apply any voltage to the inputs. Install a diode that absorbs reverse voltages to the
relay coil on the input connections. If any auxiliary equipment is used, include electrical
noise suppression.
6. Output Method
The output signal of the unit is through a dry contact output internal common GND on one
side with a maximum rated load of DC 24 V / 500 mA. A common GND for connections with
auxiliary equipment should be used.
(Caution)
Do not apply voltage to the inputs. Install a diode that absorbs reverse voltages to the relay
coil on the input connections. If an auxiliary unit is used, carry out electrical noise suppres-
sion.
7. Overload Protection
The overload protection circuit stops output to protect the unit and electric driver from ex-
cess current if the driver is operated into overload.
The overload protection is activated, turn off the control unit and let it sit idle for at least one
minute. The driver may be operated after turning the unit back on.
(Caution)
Please note that if the driver is repeatedly overloaded, activating overload protection, the cur-
rent rating of the unit or the electric driver may be exceeded.
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