Banner Universal Input Safety Modules - Manual (Page 9)

*
*
L2
MSC1
MSC2
Machine
Master Stop
Control Elements
*Arc suppressors
(see WARNING)
K1
A
6A max.
6A max.
6A max.
K2
A
K1
B K2
B
K1
C K2
C
*
MSC3
13 14
23 24
33 34
L1
Machine
Control
Circuits
Model UM-FA-9A
*
*
L2
MSC1
MSC2
Machine
Master Stop
Control Elements
*Arc suppressors
(see WARNING)
K1
A
6A max.
6A max.
6A max.
K2
A
K1
B K2
B
K1
C
K2
C
13 14
23 24
31 32
L1
Machine
Control
Circuits
Model UM-FA-11A
Feedback
(optional)
Machine Control Circuit Connections
Figure 8.
Connection of Reset Switch
The reset circuit switch can be any mechanical switch, such as a normally open momentary switch, or a two-position key switch. The
reset switch must be capable of reliably switching 12V dc at 10 to 20 milliamps. As shown in the hookup configurations in
Safety Input
Device Hookup Options on page 5, the reset switch connects between terminals S11 and S33 of the Safety Module.
The reset switch must be located outside of – and not be accessible from – the area of dangerous motion, and must be posi-
tioned so that any area of dangerous motion may be observed by the switch operator during the reset procedure. See warning,
Reset Switch Location.
WARNING: Reset Switch Location
All reset switches must be accessible only from outside, and in full view of, the hazardous area.
Reset switches must also be out of reach from within the safeguarded space, and must be protec-
ted against unauthorized or inadvertent operation (for example, through the use of rings or guards). If
any areas are not visible from the reset switch(es), additional means of safeguarding must be provided.
Failure to do so may result in serious bodily injury or death.
Automatic Reset Mode
The Safety Module may be used also with automatic reset. If no MSC-monitor contacts are monitored, a jumper must be installed be-
tween terminals S33 and S34 (see the hookup configurations in
Safety Input Device Hookup Options on page 5). The Safety Module will
reset and the outputs energize as soon as the inputs return to an ON or "closed-contact" state (after 250 ms OFF state).
The automatic reset mode is useful for some automated processes. However, if automatic reset is used, it is necessary to provide an
alternate means of preventing resumption of hazardous machine motion, until an alternate reset procedure is performed. The alternate
procedure must include a reset/restart switch, located outside the area of dangerous motion, which is positioned so that any area of
dangerous motion may be observed by the switch operator during the reset procedure. See Warning below.
UM-FA-xA Universal Input Safety Modules
P/N 141249_web
Rev. E www.bannerengineering.com - tel: 763-544-3164 9