ES-FA-9AA BANNER ENGINEERING, ES-FA-9AA Datasheet - Page 4

• Manufacturer Part Number: ES-FA-9AA
• Description: Module; Relay; Red LED; 24; UL Listed
• Manufacturer: BANNER ENGINEERING

Specifications of ES-FA-9AA

• Light Source: Red LED
• Coil Voltage Vac Nom: 24V
• Coil Voltage Vdc Nom: 24V
• Contact Current Max: 6A
• Contact Voltage Ac Nom: 250V
• Contact Voltage Dc Nom: 250V
• Contact Configuration: 3PST-NO
• No. Of Poles: 3
• Lead Free Status / Rohs Status: RoHS Exempt Product

As shown in Figures 2 and 3, the E-stop switch must provide contacts which are closed
when the switch is in the “armed” position. Once activated, the E-stop switch must open
its contacts and be returned to the closed-contact position only by a deliberate action
(such as twisting, pulling, or unlocking). The switch should be a “positive-opening type,”
as described by IEC60947-5-1. A mechanical force applied to such a button (or switch)
is transmitted directly to the contacts, forcing them open. This ensures that the switch
contacts will open whenever the switch is activated. NFPA 79 section 13.2, Emergency Stop
Devices, specifies the following additional switch (“stop control”) requirements:
• Emergency stop push buttons shall be located at each operator control station and at
• Stop and emergency stop push buttons shall be continuously operable from all control
• Actuators of emergency stop devices shall be colored RED. The background immediately
• The emergency stop actuator shall be a self-latching type.
NOTE: Some applications may have additional requirements. The user must refer to all
When a 1-channel E-stop is used, the user must guard against failure modes that can result
in an unsafe condition, for example the failure of the contact to a short circuit condition. A
switch with positive opening operation should be used to reduce the possibility of a failure
of the switch to open. A short circuit failure results in loss of switching function. This
can occur from a short across the switch contacts, a short across the wires connected to
the switch somewhere between the switch and the E-Stop Safety Module, or a short to a
secondary source of power. To reduce these possibilities, physically separate the wires from
each other and from other sources of power (e.g., in separate wireways or conduit).
According to the definition of European standard ISO 13849-1 (EN954-1), a 1-channel
E-stop should generally be used in applications where Safety Category 2 or less (1 or B) has
been determined via a risk-assessment procedure.
Two-channel E-stops, with positive open switches, are designed to issue a stop command
even in the event of a single failure of this type and provide a high level of safety.
If the Module is configured for 2-channel E-stop, the immediate normally open output
contacts (13-14, 23-24, and 33-34) will open as soon as at least one of the two E-stop
contacts opens. Although simultaneity is not required, the E-stop contacts must both be
open at the same time and then both be closed, to reset the output contacts. If not, the unit
will go into a lockout condition that results in the outputs opening and requiring a reset after
the fault has been corrected.
E-Stop Safety Module –
4
other operating stations where emergency shutdown shall be required.
and operating stations where located.
around the device actuator shall be colored YELLOW. The actuator of a push-button-
operated device shall be of the palm or mushroom-head type.
P/N 60606 rev. B
relevant regulations.
E-Stop Switch Requirements
ES-FA-9AA
Banner Engineering Corp.
www.bannerengineering.com • Tel: [phone]
button is used, a single fault (such as a
short across the single E-stop contact
or from the contact to a secondary
source of power) can lead to the
complete loss of safety.
A 1-channel E-stop should be used
only in applications where such
a fault can be excluded, or the
resulting loss of safety cannot result
in serious injury or death (Safety
Category 2, 1 or B; see page 3).
If a 1-channel E-stop is used,
separate the wires from each other
and from other sources of power,
by routing them through separate
wireways or conduit in order to
increase the reliability of the interface.
!
WARNING . . .
1-Channel Input
If a 1-channel E-stop
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Minneapolis, MN U.S.A.