ROBWAY RCI-4100, Operation And Installation

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RESTRICTED SLEW ZONE MONITORING
MAN-1111 Rev H ©Copyright 2015 LSI-Robway Pty Ltd Page 133
Operating Instruction (Restricted Slew Zone Controller)
The following sections explain how to set and operate the Restricted Slew Zone Controller
and make best use of its capabilities.
This RCI-4100 has an integrated Restricted Slew Zone (RSZ) controller designed to warn the
operator of an impending collision between the crane boom and a fixed structure/obstacle.
The RSZ controller works independently from the normal Rated Capacity Indicator mode of
the RCI-4100 system. It is comprised of the following components integrated into the system:
Slew Encoder
The slew encoder is used to monitor the position (slew angle) of the crane boom. It is usually
fitted with a suitable drive gear and meshed directly with the crane's slew ring or pinion gear.
Boom Angle Sensor
In addition to its normal function to the Rated Capacity Indicator mode, the main boom angle
sensor is also used in combination with the slew angle in setting unsafe zones.