IEC60947- 5-1, with one or more normally closed contacts rated for safety. In addition, the switches must be mounted in a
"positive mode," to move/disengage the actuator from its home position and open the normally closed contact when the
guard opens.
The design and installation of the interlocked guard and the safety switches should comply with ANSI B11.19, ISO14119,
ISO 14120, and/or other applicable standards. See the device manufacturer installation instructions for complete
information (such as GM-FA-10J p/n 60998, SI-LS83/-LS100 p/n 59622, or SI-HG63 p/n 129465 datasheets).
In higher levels of safety performance, the design of a dual-channel coded magnetic switch typically uses complementary
switching, in which one channel is open and one channel is closed at all times. The inputs of the Safety Module do not
support complementary switching, and thus should not be used with coded magnetic safety switches.
Mechanical Installation
The Safety Module must be installed inside an enclosure.
It is not designed for exposed wiring. It is the user’s responsibility to house the Safety Module in an enclosure with NEMA 3
(IEC IP54) rating, or better. The Safety Module mounts directly to standard 35 mm DIN rail.
Heat Dissipation Considerations: For reliable operation, ensure that the operating specifications are not exceeded. The
enclosure must provide adequate heat dissipation, so that the air closely surrounding the Module does not exceed the
maximum operating temperature stated in the Specifications. Methods to reduce heat build-up include venting, forced
airflow (for example, exhaust fans), adequate enclosure exterior surface area, and spacing between modules and other
sources of heat.
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.
It is not possible to give exact wiring instructions for a Safety Module that interfaces to a multitude of machine control
configurations. The following guidelines are general in nature.
The Safety Module has no delay function. Its output relay contacts open within 25 milliseconds after a safety input
opens. This classifies the Safety Module as a functional stop "Category 0" control, as defined by ANSI NFPA 79 and IEC/EN
60204-1.
The safety inputs can be connected to:
•
A +24V dc source that is switched by a hard/relay contact in single-channel hookup configuration, or
•
Hard/relay contacts in a dual-channel hookup configuration using terminals S11-S12 and S21-S22.
Safety Input Device Hookup Options
The operation of all dual-channel hookup options is concurrent, meaning that input channel 1 and input channel 2 must be
in the same state in both the STOP and RUN condition, but with no simultaneity (timing) requirement between the
channels.
The dual-channel hookup configuration is able to detect certain failures and faults, such as short circuits, that could
result in a loss of the safety function. Once such a failure or fault is detected, the Safety Module will turn OFF (open) its
safety outputs until the problem is fixed. This circuit can meet ISO 13849-1 Category 2, 3, or 4 requirements, depending
on the safety rating and the installation of the safety input device. This circuit can detect a short circuit between channels
or to another source of power, at a minimum, when the device is actuated.
A single device with redundant outputs that can fail in such a manner to lose the safety function, such as a single safety
interlocking switch, can typically meet only a Category 2. See below for means to eliminate or minimize the possibility of
failures and faults that could result in the loss of the safety function(s).
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.
ES-FA-9AA and ES-FA-11AA E-Stop Safety Module
4
www.bannerengineering.com - Tel: +1-763-544-3164
P/N 60606 Rev. G
