Safeguarding Function - Harmony eXLhoist User Manual

Safeguarding Function

Overview
The ZARB18• Base Station implement 12 inputs IN7...IN18.
These inputs are dedicated for limit switches to provide a protection to the hoist system.
Description
There are 4 limit switches per axis that allow to:
Stop the motion at minimum mechanical position.

Disable the high speed of the direction when the hoist system is near the minimum position.

Stop the motion at maximum mechanical position.

Disable the high speed of the direction when the hoist system is near the maximum position.

These inputs are associated to motion buttons.
Once a limit switch is opened, the associated motion relay(s) is(are) switched OFF.
You can configure the limit switches with the eXLhoist Configuration Software
Installation Principle
Principle of safeguarding function installation for 1 axis:
1 Mechanical target for limit switch triggering for stopping the motion direction
2 Mechanical target for limit switch triggering for slowing the motion direction
3 Mechanical target for limit switch triggering for slowing the motion direction
4 Mechanical target for limit switch triggering for stopping the motion direction
5 Stationary part
6 Mobil part
7 Motion (example: button 1 or 1H)
8 Motion (example: button 2 or 2H)
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
EIO0000001505 12/2014
(see page 91).
Installation and Wiring
(see page 194).
2
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