Mechanical installation – Banner QMT72 Rope Pull Switches User Manual
Page 4
Reset Button
Pull to Reset
Rope Tension
Indicator
Cover Plate
Screws (4)
Figure 1. Features
These rope pull switches are not safeguarding devices, in that they
do not protect personnel from injury. They provide the same
function as other types of stop switches.
All five models feature “latching” operation. When the rope is pulled,
the switch contacts 25/26 (and 45/46, depending on model) open
and remain open until the built-in reset button is manually pulled to
reset.
WARNING: Not a Safeguarding Device
An Emergency Stop Device is not considered a safeguarding device because it requires an
overt action by an individual to stop machine motion or hazards.
A safeguarding device limits or eliminates an individual's exposure to a hazard without action by the
individual or others. Because an individual must actuate the device for it to function, these devices do
not fit the definition of a safeguarding device and cannot be substituted for required safeguarding. Refer
to the relevant standards to determine those requirements.
Mechanical Installation
Installation Guidelines
•
The rope should be easily accessible and visible along its entire length. Markers or flags may be fixed on the rope
to increase its visibility
•
Mounting points, including support points, must be rigid and allow sufficient space around the rope to allow easy
access
•
The rope should be free of friction at all supports. Pulleys are recommended
•
Use only pulleys (not eye bolts) when routing the rope around a corner or whenever direction changes, even
slightly
•
Never run rope through conduit or other tubing
•
Never attach weights to the rope
•
Temperature affects rope tension. The rope expands (lengthens) when temperature increases, and contracts
(shrinks) when temperature decreases. Significant temperature variations require frequent checks of the tension
adjustment
•
Do not exceed the maximum specified total rope length. Banner offers models for other spans; contact Banner
Engineering or visit
www.bannerengineering.com
for model selection
Rope Pull Switches
4
www.bannerengineering.com - tel: 763-544-3164
P/N 62084 Rev. C