Banner Universal Input Safety Modules - Manual (Page 5)

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 Person 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.
Electrical installation must be made by qualified personnel 1 and must comply with NEC (National Electrical Code), ANSI/NFPA 79 or
IEC/EN 60204-1, and all applicable local standards. It is not possible to give exact wiring instructions for a device that interfaces to a
multitude of machine control configurations. The following guidelines are general in nature. Perform a risk assessment to ensure appro-
priate application, interfacing/hookup, and risk reduction (see ANSI B11.0 or ISO 12100).
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:
• +24V dc solid-state (PNP) outputs in single-channel or dual-channel hookup configuration
• +24V dc source that is switched by hard/relay contacts in single-channel or dual-channel hookup configuration
• Hard/relay contacts in a dual-channel hookup configuration using terminals S11-S12 and S21-S22
The UM Safety Module must be configured (via DIP switch) for the appropriate hookup in order to operate properly. When using devices
with redundant solid-state safety outputs (such as the AG4 Safety Laser Scanner OSSDs) or redundant hard contacts switching a +24V
dc source, both the DIP switches must be set to the "OFF" position (default position, see
Figure 3. DIP Switch Settings on page 3). This
setting is for solid-state dual-channel hookup using terminals S11-S12 and S21-S22 as described in Figure 5. on page 7.
To configure the Module for dual-channel hookup to monitor a device with redundant hard contacts (such as an emergency-stop button),
set both the DIP switches to the "ON" position. This setting is for dual-channel hookup using terminals S11-S12 and S21-S22 as descri-
bed in
Figure 4. on page 7, or when the dual-channel input is not used (is jumpered) in single-channel hookup configuration as descri-
bed in Figure 6. on page 8 and Figure 7. on page 8.
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 dry (hard/relay) contact 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.
The solid-state dual-channel hookup configuration cannot detect short circuits between input channels or to secondary sources of
+24V dc. To achieve higher levels of safety performance, the safety device that is connected to input channels 1 and 2 must be capable
of detecting these short circuits and properly responding by turning both channels OFF. This circuit can meet ISO 13849-1 Category 2, 3,
or 4 requirements depending on the safety rating, installation, and the fault detection (for example, short circuit) capabilities of the safety
input device. If short circuit detection is not provided, the circuit can meet only Category 3.
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).
The single-channel hookup configuration cannot detect short circuits to secondary sources of +24V dc or detect the loss of the switch-
ing function of the safety input device (that is, it is not redundant) and thus this circuit typically can meet only ISO 13849-1 Category 2.
1 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.
UM-FA-xA Universal Input Safety Modules
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