Nihon Bisoh Co.,Ltd. BISOMAC210 3Phase MM2014/11
KH-2014008 Rev.4
47
Case
Ⅶ
BISOMAC becomes very hot.
Possible cause
Solution
1. Voltage is too high.
2. Insufficient ventilation for Motor.
3. Heavily used.
4. Excessive load to the hoist.
1. Supply appropriate power. (2.1)
2. Improve ventilation.
3. Keep rated operating time. (Section 6)
4. Check if the weight of the platform and
applied loads are appropriate to the hoist. If
necessary, reduce the load.
Case
Ⅷ
The hoist ascends with UP button but cannot descend with DOWN button.
Possible cause
Solution
1. BISOLOCK is disconnected.
2. BISOLOCK is activated.
1. Connect BISOLOCK properly.
2. Reset BISOLOCK.
<How to reset>
(1) Operate UP travel approx. 2 inch.
(2) Pull down Release Lever.
(3) Reset competed.
*DO NOT forcibly reset BISOLOCK.
Pin inside Release Lever may be broken
and become unable to reset.
