Banner GM-FA-10J Original Instructions Manual page 6

This check must be performed and all faults must be cleared, at a minimum, during periodic checkouts. If the application can not exclude
these types of failures and such a failure could result in serious injury or death, then the series connection of safety switches must not be
used.
WARNING: Multiple Switching Devices
Whenever two or more devices are connected to the same safety module (controller):
• Contacts of the corresponding pole of each switch must be connected together in series. Never
connect the contacts of multiple switches in parallel. Such a parallel connection defeats the switch
contact monitoring ability of the Module and creates an unsafe condition which could result in serious
injury or death.
• Each device must be individually actuated (engaged), then released (or re-armed) and the safe-
ty module reset. This allows the module to check each switch and its wiring to detect faults.
This check must be performed during the prescribed checkouts. Failure to test each device individually
in this manner could result in undetected faults and create an unsafe condition which could result
in serious injury or death.
Connection to the Guarded Machine
The machine interface hookup diagram (Figure 7) shows a generic connection of the Module's two redundant output circuits to machine
primary control elements MPCE1 and MPCE2. A machine primary control element is an electrically powered device, external to the Mod-
ule, which stops the guarded machinery by immediately removing electrical power to the machine and (when necessary) by applying
braking to dangerous motion. The stop is accomplished by removing power to the actuator coil of either MPCE.
To satisfy the Safety Category 4 requirements of ISO 13849 (EN 954-1), each MPCE must offer a normally closed, forced-guided monitor
contact. One normally closed monitor contact from each MPCE is wired in series to the Y1-Y2 feedback/reset input (see
to the guarded machine on page 9). In operation, if one of the switching contacts of either MPCE fails in the shorted condition, the
associated monitor contact will remain open, preventing the reset of the Module.
External Device Monitoring
To satisfy the requirements of Control Reliability (OSHA and ANSI) and Category 3 and 4 of ISO 13849-1 (EN 954-1), the machine
primary control elements (MPCEs) must each offer a normally closed, forced-guided (mechanically linked) monitor contact. Connect one
normally closed monitor contact from each master stop control element in series to Y1 and Y2 (see hookup drawings).
In operation, if one of the switching contacts of either MPCE fails in the energized condition, the associated monitor contact will remain
open. Therefore, it will not be possible to reset the Safety Module. If no MPCE-monitor contacts are monitored, a jumper must be instal-
led between terminals Y1 and Y2 (dotted line), as shown in the hookup drawings. It is the user's responsibility to ensure that any single
failure will not result in a hazardous condition and will prevent a successive machine cycle.
One-Channel Monitoring
Configured for one-channel monitoring of either one or two guards.
This application is considered to meet or exceed requirements for
Control Reliability and Safety Categories 3 and 4 per ISO 13849-1
(EN954-1).
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Two-Channel Monitoring
Configured for two-channel monitoring of one guard. This applica-
tion is considered to meet or exceed requirements for Control Reli-
ability and Safety Categories 3 and 4 per ISO 13849-1 (EN954-1).
GM-FA-10J Gate Monitoring Safety Module
Figure 7. Wiring