Safety Relay - Harmony eXLhoist User Manual

Safety Relay

IN0 Safety Loop Input
The IN0 input is dedicated to check the correct actuator functionality with the auxiliary contact
state.
The E-STOP function can reach up to SIL 3 level only if all the relevant auxiliary contacts are
connected between the IN0 input and the S2_S3 port terminal.
The I/O and power supply cable lengths should not exceed 20 m (65.6 ft).
Q0A/Q0B Safety Relays
The safety relays are switched ON when ON/START/Horn button is activated and all the safety
conditions are fulfilled.
The safety relay output cable length should not exceed 20 m (65.6 ft).
General Wiring Rules
The I/O and power supply cables should be AWG 16 (cross-sectional conductor area = 1.3 mm
The I/O and power supply cable lengths should not exceed 20 m (65.6 ft).
For more details, refer to Wiring Best Practices
Wiring
For wiring examples, refer to the Architecture examples
Safety Details
For more details about safety, refer to Safety chapter
EIO0000001505 12/2014
(see page 91).
(see page 216).
(see page 53).
Installation and Wiring
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