Chapter 1
Handling the Product
How to use (continued)
■ Speed Change of Dual Speed VFD Model
You can change the high/low speed of the dual speed VFD model by changing the VFD parameter.
Prohibited
1
Mandatory
■ How to Sling the Load Properly
Sling the load at the
extended line of the
hook shaft.
■ How to Suppress the Swinging of a Load
Prohibited
Swinging of a load makes it difficult and dangerous to move the trolley. The basics of operation are not to make a load
swing. To do that keep the following instructions.
● Do not lift a load in an inclined direction.
● Start slowly when traveling the load.
● Do not lift suddenly.
Even if you keep the above instructions, the lifted load may swing at
the start and the stop of the electric chain hoist.
Following operation can reduce the swing of the lifted load.
■ Operation
1) Press the Travel Button. (Fig. a)
2) When the trolley starts to move, the lifted load delays a bit. (Fig. b)
3) Release the button a bit before the time when the lifted load
swings to the center position.
4) When the lifted load comes to the position just beneath the electric chain hoist,
press the button again and continue to travel the load. (Fig. c)
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• Only maintenance engineers or the personnel with expertise are allowed to set or change parameters.
Wrong parameter settings may result in danger such as defective operation and drop of lifted load. Contact Please contact
KITO for consultation.
Failure to comply with these instructions may result in death or serious injury.
• When changing the parameter, set it correctly referring to the VFD Manual.
• Parameter change requires energizing. Do not touch the energized part.
Failure to comply with these instructions may result in death or serious injury.
Do not carry out dangerous hooking as shown below.
120˚ or less
Improper hooking
position of the lifted
load or the sling
• Do not move the electric chain hoist with a load hung at one side of the Crane Saddle.
Otherwise the load swings and hits a person or object or drops to result in death or serious injury.
DANGER
Angle exceeding 120˚
Angle too wide
Unable closing of the
Hook Latch
DANGER
a
Hooking of the load at
the tip of the Hook
b
c