Configuration, Safety interlock switch requirements – Banner ES-FA-6G Safety Module User Manual
Page 3
Configuration
S21
A1
S11
S13
S23
S21
S22
13
23
Y1
Y2
14
24
A2
K1
K2
14 24
Machine
Safety
GM-FA-10J
Power
Fault
In 1
In 2
Output
Power ON
(green)
Input 1
Active (green)
Fault (red)
Input 2
Active (green)
Outputs
Active (green)
S12
S13
S11
Y1
23
13
A1
A2
24
14
Y2
S22
S21
S23
Figure 1. GM-FA-10J Features and Terminal Lo-
cations
The Safety Module may be configured via DIP switches for two-channel (redundant
switches on a single guard), or one-channel operation (individual switches on two
guards). In two-channel operation, each channel must switch within 3-second si-
multaneity of the other when the guard closes. If not, the guard must be re-opened
and closed until the timing requirement is met. When the guard opens, the two
channels operate concurrently (both channels must switch, but without the timing
requirement).
In one-channel operation, each channel operates individually, except to reset the
device (in which case both guards must be closed). If only one switch is being
monitored, the closed input of the unused channel must be jumpered (S11/S13 or
S21/S23).
The reset function has two options, selected by DIP switch: Automatic reset or
Monitored Manual reset. See
Figure 7. Wiring to the guarded machine
9 for configuration information.
The reset input also can be used for an External Device Monitoring (EDM) circuit.
The EDM circuit consists of a normally closed, force-guided contact from each de-
vice being controlled by the Safety Module, all wired in series with the Reset button
(if used) and terminated at terminals Y1 and Y2. See
Figure 6. Alternate wiring for
two-channel monitoring of multiple guards
on page 8 for further information.
The output of the Safety Module consists of two redundant output switching chan-
nels, each of which is the series connection of two forced-guided relay contacts
(K1 and K2 in
Figure 6. Alternate wiring for two-channel monitoring of multiple
on page 8). Each of the switching outputs is rated for up to 250V ac at
up to 6 amps.
WARNING: Hazard Point
It must not be possible for personnel to reach any hazard point through an opened guard (or any
opening) before hazardous machine motion has completely stopped.
Please reference OSHA CFR 1910.217 and ANSI B11 standards for information on determining safety
distances and safe opening sizes for your guarding devices.
WARNING: Safety Categories
The level of safety circuit integrity can be greatly impacted by the design and installation of the safety
devices and the means of interfacing of those devices. A risk assessment must be performed to deter-
mine the appropriate safety circuit integrity level or safety category as described by ISO 13849-1
(EN 954-1) to ensure that the expected risk reduction is achieved and that all relevant regulations
and standards are complied with.
Safety Interlock Switch Requirements
The following general requirements and considerations apply to the installation of interlocked guards and gates for the purpose of safe-
guarding. In addition, the user must refer to the relevant regulations to be sure to comply with all necessary requirements.
Hazards guarded by the interlocked guard must be prevented from operating until the guard is closed; a stop command must be issued to
the guarded machine if the guard opens while the hazard is present. Closing the guard must not, by itself, initiate hazardous motion; a
separate procedure must be required to initiate the motion. The safety switches must not be used as a mechanical or end-of-travel stop.
The guard must be located an adequate distance from the danger zone (so that the hazard has time to stop before the guard is opened
sufficiently to provide access to the hazard), and it must open either laterally or away from the hazard, not into the safeguarded area. The
guard also should not be able to close by itself and activate the interlocking circuitry. In addition, the installation must prevent personnel
from reaching over, under, around or through the guard to the hazard. Any openings in the guard must not allow access to the hazard
GM-FA-10J Gate Monitoring Safety Module
P/N 060998 Rev. F
www.bannerengineering.com - tel: 763-544-3164
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