LSI-Robway RCI-1550 HRT, Инструкция по эксплуатации, Страница: 23 / 126

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5.4 Over-ride Key-Switch (If fitted)
Should crane overload be reached (or other limitations exceeded, such as maximum radius,
minimum angle, winch line-pull etc), the system will activate the motion cut relay, if installed.
This will then stop further over-loading of the crane. To bypass or temporarily override
motion cut, the operator can use the over-ride key which should be held by the site-supervisor.
When the key is inserted and turned on, the O/RIDE indicator is illuminated as a reminder.
The Master Over-ride key-switch is
located on the Control Box Unit.
Turn on to deactivate motion lock-outs.
5.5 Disable Key Switch (If Fitted)
The purpose of the disable switch input is to bypass the RCI-1550 should a hardware fault
develop. The override input simply signals to the software that if an overload is present to
ignore it, hence is software controlled. The disable input is a hardware bypass, and in fact no
software need to be running at all. Hence should the main processor fail, the disable input can
be used to allow operation of the crane until the unit can be serviced.
Like the override key, this key should be held by the site supervisor.
5.6 Turning on the RCI-1550
Generally by the ignition key-switch OR as installed.
Power to the RCI-1550 can be derived from the automotive alternator DC supply, nominally
12V or 24V DC namely;
1. The crane electrical ignition circuit.
2. The crane electrical accessory circuit.
For either DC supply, absolute voltage range is 10
- 40V DC.
File : 1550-Telescopic-HRT.DOC
Issue Date: - 01/08/05