0
0
20
40
60
80
100
120
140
160
4
8
12
16
20
24
28
32
Max. T
otal Series Cable (m)
Number of ISD Devices
Max. Total Series Cable (m)
Single Power Supply
SI-RF
E-Stops
Figure 11. Maximum total cable length for a single power supply
WARNING:
• Safety devices with OSSDs and without ISD, such as safety light curtains, are not compatible.
• Failure to follow these instructions could result in serious injury or death.
• Do not use safety devices with OSSDs and without ISD in a series connection of multiple ISD
devices.
2.5 Checkout
At machine set up, a
Designated Person
3
should test each safety point for proper machine shutdown response. A
Designated Person
should check the safety point for proper operation, physical damage, button looseness, and excessive
environmental contamination. This should take place on a periodic schedule determined by the user, based on the severity
of the operating environment and the frequency of switch actuations.
Adjust, repair, or replace components as needed. If inspection reveals contamination on the switch, thoroughly clean the
switch and eliminate the cause of the contamination. Replace the switch and/or appropriate components when any parts or
assemblies are damaged, broken, deformed, or badly worn; or if the electrical/mechanical specifications (for the
environment and operating conditions) have been exceeded.
Always test the control system for proper functioning under machine control conditions after performing maintenance,
replacing the safety point, or replacing any component of the device.
2.6 Resetting the Inputs
The reset function forces a local confirmation that the safety outputs are switched on after resetting the individual
emergency stop button.
If an emergency stop button with a reset function is actuated and then armed/re-armed (pulled out), close and open the
external reset switch within 0.25 seconds (minimum) to 1 second (maximum) to turn the e-stop buttons outputs on
(assuming its inputs are satisfied).
3
A
Designated Person
is identified in writing by the employer as being appropriately trained to perform a specified checkout procedure. A Qualified
Person possesses a recognized degree or certificate or has extensive knowledge, training, and experience to solve problems relating to the
emergency stop installation.
SSA-EB1PLx-0Dx Series Lighted Emergency Stop Button with ISD
10
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