Cut Sheet

Electrical Installation
WARNING: Shock Hazard and Hazardous Energy
Always disconnect power from the safety system (for example, device, module, interfacing,
etc.) and the machine being controlled before making any connections or replacing any
component.
Electrical installation and wiring must be made by Qualified Personnel
1
and must comply with the
relevant electrical standards and wiring codes, such as the NEC (National Electrical Code), ANSI
NFPA79, or IEC 60204-1, and all applicable local standards and codes.
Lockout/tagout procedures may be required. Refer to OSHA 29CFR1910.147, ANSI Z244-1, ISO
14118, or the appropriate standard for controlling hazardous energy.
Access to the Wiring Chamber
Access the wiring chamber by using a flat-bladed screwdriver to pry open a hinged cover door. A single M16 × 1.5
threaded port allows wiring to be routed via conduit or a cable gland. A conduit adapter is supplied to convert the M16 ×
1.5 thread to ½" × 14 NPT. An accessory cable gland (SI-QS-CGM16) that fits the M16 × 1.5 thread is available, see
Accessories on page 13.
Figure 5. Accessing the Wiring Chamber
Connection to a Machine
Perform a risk assessment to determine the appropriate level of safety circuit performance (integrity) and the means of
interfacing the switch(es) with the machine control circuit. While Banner Engineering always recommends the highest level
of safety in any application, the user is responsible to safely install, operate, and maintain each safety system and comply
with all relevant laws and regulations.
To ensure the highest level of reliability (Control Reliable or Category 4, for example), wire the contacts from each of two
individual safety switches per interlock guard in a dual channel hookup. At a minimum, one of these two contacts must be
the positively-driven normally closed safety contact (S1 in Figure 6 on page 10).
Depending on the application, the redundant switch contact will be a positively-driven normally closed safety contact (if
mounted in a positive mode), or a normally open monitoring (non-safety) contact held closed by the cam on the guard (if
mounted in a negative mode). In either scenario, the dual channel hookup is monitored by a safety module (for example,
ES-FA-9AA), safety controller (for example, SC22-3 or SC/XS26-2), or the safety related part of the machine control that
complies with the required level of safety performance.
1
A person who, by possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training and experience, has
successfully demonstrated the ability to solve problems relating to the subject matter and work.
Safety Limit Switches
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