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4 Installation and maintenance
Installation of the Safety Switch
1.
The installation of all Emergency Stop Grab Wire Safety Switch systems must be in accordance with
a risk assessment for the individual application. Installation must only be carried out by competent
personnel and in accordance with these instructions.
2. According to ISO 13850, corner pulleys may only be mounted such that a complete length of the wire
can be observed.
3. Wire support eyebolts must be fitted at 2.5 m. min. to 3m. max.intervals along all wire lengths
between switches. The wire must be supported no more than 500mm from the switch eyebolt or
Safety Spring (if used). It is important that this first 500mm is not used as part of the active
protection coverage.
4. M5 mounting bolts must be used to fix the switches. Tightening torque for mounting bolts to
ensure reliable fixing is 4 Nm. Tightening torque for the lid screws,conduit entry plugs and cable
glands must be 1.5 Nm to ensure IP seal. Only use the correct size gland for the conduit entry and
cable outside diameter.
5. Tensioning of wire is achieved by use of ABB tensioner / gripper assemblies.
Upon installation, tension to mid position is indicated by the green arrows in the viewing window of
each switch. Check operation of all switches and the control circuits by pulling the wire at various
locations along the active protection area and resetting each switch by pressing the blue Reset
button. Ensure each time that the switches latch off, and require manual resetting by pressing the
Reset button. Increase the system tension further, if required, depending upon the checks along the
active length of coverage.
If safety switch is fitted with a Mushroom type E-Stop button (Red) then test and reset this part of
the switch to ensure correct function of the safety control circuits. Typical operational conditions
for successful operation of system are less than 75N pulling force and less than 150mm deflection of
rope between eyebolt supports.
6. Recommended wire span options and fittings - (subject to an individual risk assessment for the
installation) See Function description for correct wire span for each variant.
7. Wiring LED (Not on LineStrong1):
Black or Terminal 2 is 0VDC.
When 24VDC is applied to the Red wire or Terminal 1, the lamp will illuminate Red.
When 24VDC is applied to the Green wire or Terminal 3, the lamp will illuminate Green.
If the LED is fitted but is not used ensure the conductors remain coiled and fixed away from the
internal mechanism.
8. To fit Mushroom type Emergency Stop button (Not on
LineStrong1):
a) Remove M12 threaded plug from the mounting port.
b) Apply thread locking solution to the threads of the E Stop
mechanism.
c) Insert the Emergency Stop Mechanism into the mounting
port and tighten to 1.5 Nm.
d) After installation test and reset to ensure all safety circuits are functioning correctly
2TLC172248M0201, rev. C
2020-11-11
12
1) Terminal 1 – red
2) Terminal 2 – black
3) Terminal 3 – green
.
www.abb.com/jokabsafety
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