Section 2 Emergency Stop Switch - Banner ES-TA-3F1 Operating Instructions Manual

E-Stop Safety Module –
The Safety Module has indicators for input power, E-Stop inputs, monitor inputs, reset
input and output relay status (see Figure 1). A selector for Auto or Manual Reset is
located under the control panel cover (see page 8 for instructions). See Sections 6 and
7 for information regarding troubleshooting and repairs.
Figure 1. ES-TA-3F1 status indicators
SECTION 2 – Emergency Stop Switch Requirements
As shown in Figure 3, each Emergency Stop switch must provide two contacts which
are closed when the switches are in the "ready" position. Once activated, the
Emergency Stop switch must open both contacts. The switch may be returned to the
closed-contact position only by a deliberate action (such as twisting, pulling or
unlocking). Additionally, NFPA79, section 13.2 Emergency Stop Devices specifies the
following switch ("stop control") requirements:
• Emergency Stop push buttons must be located at each operator control station
and at other operating stations where emergency shutdown is required.
• Stop and Emergency Stop push buttons must be continuously operable from all
control and operating stations where located.
• Actuators of Emergency Stop devices must be colored RED. The background
immediately around the device actuator must be colored YELLOW. The actuator
of a push-button-operated device must be of the palm or mushroom-head type.
• The Emergency Stop actuator must be either a momentary or self-latching type.
NOTE: Some applications may have additional requirements. The user must refer to all
relevant regulations.
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Model ES-TA-3F1
WARNING. . .
!
Model ES-TA-3F1
Emergency Stop Safety
Module is not a point-of-
operation guarding device, as defined
by OSHA regulations. It is necessary to
install point-of-operation guarding
devices, such as safety light screens
and/or hard guards, to protect
personnel from hazardous machinery.
Failure to install point-of-operation
guards on hazardous machinery can
result in a dangerous condition which
could lead to serious injury or death.