Banner Compact Metal Style Safety Interlock Switches - Manual (Page 3)

P/N 50159 Rev. F
3
Banner Engineering Corp. • Minneapolis, MN U.S.A
www.bannerengineering.com • Tel: 763.544.3164
Machine Safety Switch: SI-LM40 Series Limit Switch Style
Round (5 mm) holes
for permanent
installation (2X)
Slotted holes for initial
alignment only (2X)
Remove to access
wiring chamber (2X)
Mechanical Installation
All mounting hardware is supplied by the user. The fasteners must be of sufficient
strength to guard against incidental breakage. Use of permanent fasteners or
locking hardware is recommended to prevent loosening or displacement of the
actuator and switch body.
Note: The slotted holes in the switch body must ONLY be used for alignment
during installation (see Figure 1). The round 5 mm holes (only) must be used for
permanent mounting to prevent loosening or displacement of the actuator and the
switch body. Only M5 (#10) screws (customer supplied), should be used.
There are four holes on a mounting pattern of 30 x 60 mm. The actuator has four
M4 tapped mounting holes on a 26 mm (1.02") square pattern (see dimensions on
page 7).
Position the switch, with its actuator fully engaged, in the mounting location and
mark the mounting holes. Drill the required holes and fasten the switch body and
the actuator in place. After the mounting hardware is secure, check the actuator/
switch engagement for misalignment and binding.
The actuator is spring-loaded to allow positive pressure to be applied when the
guard is closed. However, the switch must never serve as the mechanical end stop
for a guard door or gate. Positive pressure for the actuator engagement is desirable,
because only 1 mm (0.04") of actuator travel from the point of full engagement is
required to open the safety contact.
Important:
1. A safety switch must be installed in a manner which discourages
tampering or defeat. Mount each switch to prevent bypassing of the
switching function at the terminal chamber.
2. A switch and its actuator must never be used as a mechanical stop.
3. Ensure proper placement of gasket when rotating head. Failure to do so
will reduce the environmental rating.
WARNING ... It must not be possible
for personnel to reach any hazard
point through an opened guard (or
any opening) before hazardous machine motion has
completely stopped. Please reference OSHA CFR
1910.217 and ANSI B11 standards (see page 2) for
information on determining safety distances and safe
opening sizes for your guarding devices.