Rockwell Automation Publication 440G-UM001C-EN-P - June 2019
13
Chapter
3
Installation
General Considerations
Installation must be in accordance with the present manual and implemented
by qualified personnel exclusively. The 440G-LZ guard locking safety switch is
intended to be part of the safety-related control system of a machine.
Correct Use
Review the following requirements and guidelines for proper use of the safety
switch in order to achieve optimal performance.
• The 440G-LZ guard locking safety switch is designed for use on small-
and medium-sized guards that are engineered to be rigid without sag and
allow partial body access to the safeguarded area.
• The switch is not to be used as a mechanical stop. Check that a separate
door stop is used.
• Use in applications where the alignment tolerance falls within the stated
specification (± 2.5 mm [0.10 in.] in X, Y, Z directions). A separately
mounted latch (for example, magnetic or mechanical) is recommended
to maintain proper alignment of the actuator. The locking bolt must be
free to enter and withdraw from the hole in the actuator without
binding.
• This switch can be used on guards that do not require escape,
emergency, or remote releases.
• Use appropriate screws, bolts, or nuts that are fitted by tools to mount
the switch and actuators to avoid tampering.
• Do not over torque the mounting hardware.
• The locking bolt must never be extended mechanically. Only extend the
bolt electrically. These basic connections are required:
– Pin 2 (brown wire) must be connected to 24V DC
– Pin 7 (blue wire) must be connected to 0V (GND)
– Pin 3 (green wire) is the lock command (0 or 24V DC). See
for description of lock command for PTR and
PTL type switches.
• Adjacent switches must be separated by a minimum distance of 200 m
(8
in.), see
ATTENTION:
Before installation, a thorough risk assessment must be
performed to determine whether the specifications of this device are
suitable for all foreseeable operational and environmental characteristics of
the application.
Содержание Allen-Bradley Guardmaster 440G-LZS21SP Series
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