Banner ES-FA-6G Safety Module - Manual (Page 7)

WARNING: Reset Routine Required
U.S. and international standards require that a reset routine be performed after clearing the cause of a
stop condition (for example, arming an E-stop button, closing an interlocked guard, etc.). Allowing the
machine to restart without actuating the normal start command/device can create an unsafe condi-
tion which could result in serious injury or death.
Connection to the Machine to be Controlled
The machine hookup diagram shows a generic connection of the Safety Module's redundant output circuits to the master stop control
elements (MSCs). An MSC is defined as an electrically powered device, external to the Safety Module, which stops the machinery being
controlled by immediately removing electrical power to the machine and (when necessary) by applying braking to dangerous motion. This
stopping action is accomplished by removing power to the actuator of either MSC.
External Device Monitoring
To satisfy the requirements of Control Reliability (OSHA and ANSI), 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 normal-
ly closed monitor contact from each Machine Primary Control Element as shown in the appropriate hookup drawing (circuit between
terminals S31 and S32, jumper if no MSC contacts are monitored).
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 Primary Safety Device. If no MPCE-monitor contacts are monitored, 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.
ES-UA-5A and ES-VA-5A E-Stop Safety Modules
P/N 122365 Rev. E www.bannerengineering.com - tel: 763-544-3164 7