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4.
Electrical connection
4.1.
Overview
This section contains information about electrical installation and wiring. See Figure 4-1 for overall wiring diagram.
IMPROPER INSTALLATION
Connect the safety light curtain to the machine control circuitry so the outputs (external safety relays with positive-guided
contacts) are systematically self-checked at each cycle.
Each interruption of one or more beams of the safety light curtain must immediately stop dangerous machine motion within
the response time of the components.
Clearing the sensing zone must NOT start the operation of the machine. When restarting, a normal control sequence must
be used to set the machine in motion.
Applying (or switching on) electrical power must NOT set the machine parts in motion, especially after an interruption during
a cycle. A normal control sequence must be used to set the machine in motion.
Strictly adhere to all electrical connection instructions.
Failure to comply with these instructions could result in death or serious injury.
IMPROPER SYSTEM PERFORMANCE
Ensure two independent stop circuit relays have mechanically linked contacts to reliably detect a welded contact.
Failure to comply with these instructions could result in death or serious injury.
Figure 4-1 Wiring diagram
See chapter 4.3 Connecting Control Unit Electrical Power Supply in this section.
See chapter 4.4 Connecting Machine Stop Control Outputs in this section.
See chapter 4.5 Connecting Indicator Lamps To Auxiliary Terminals in this section.
See chapter 2.2.2 Unit Compatibility in Description and Operation section.
See chapter 4.7 Setting The Mode Of Operation in this section.
See chapter 4.6 Connecting The Test Input in this section.
107022-16 EN FR26 GLO 301 Printed in Germany
FF-LS control unit
Machine
Control
Circuitry
(2)
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+
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