SI-HG80DQD BANNER ENGINEERING, SI-HG80DQD Datasheet - Page 4

• Manufacturer Part Number: SI-HG80DQD
• Description: SWITCH, SAFETY INTERLOCK, 1NO/1NC, 3A
• Manufacturer: BANNER ENGINEERING
• Type: Interlockr

Specifications of SI-HG80DQD

• Contact Configuration: SPDT
• Contact Voltage Ac Max: 250V
• Contact Voltage Dc Max: 60V
• Contact Current Ac Max: 3A
• Contact Current Dc Max: 500mA
• Switch Operation: ON-OFF
• Actuator Type: Flexible
• Current, Rating: 3/0.5 AAC/ADC
• Function: Safety
• Ip Rating: IP67
• Number Of Poles: 1
• Number Of Positions: 2
• Termination: Quick Connect
• Voltage, Rating: 250/60 VAC/VDC

As illustrated in Figure 2, a normally-closed safety contact (i.e., a safety contact that is
closed when the actuator is engaged) from each of two safety switches per interlock
guard must connect to a 2-channel safety module or safety interface in order to achieve
a control reliable interface to the master stop control elements of a machine. Examples
of appropriate safety modules include 2-channel emergency stop (E-stop) safety modules
and gate monitor safety modules.
Two functions of the safety module or safety interface are:
1. to provide a means of monitoring the contacts of both safety switches for contact
2. to provide a reset routine after closing the guard and returning the safety switch
Use only the positively driven, normally closed safety contact (between pins 1 and 2) from
each switch for connection to the safety module. A typical use is to communicate with a
process controller. Refer to the installation instructions provided with the safety modules
for more information regarding the interface of the safety module to the machine stop
control elements.
Hinge Switches –

failure, and to prevent the machine from restarting if either switch fails; and
contacts to their closed position. This prevents the controlled machinery from restarting
by simply closing the guard. This necessary reset function is required by ANSI B11 and
NFPA 79 machine safety standards.
P/N 46735 rev. B
Electrical Connection
SI-HG80 Series
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: [phone]
Figure . Connect two redundant safety
NOTE: Refer to the installation instructions
Input Channel
used for each interlock guard to achieve
control reliability or Safety Category  (per
ISO 189-1, EN 95-1) of a machine stop
circuit. Use of only one safety switch per
interlock guard is not recommended.
In addition, normally-closed safety contacts
from each of the two safety switches should
be connected to the two separate inputs of a
2-channel safety module or safety interface,
as illustrated in Figure 6. This is required to
provide monitoring for safety switch contact
failure, and to provide the necessary reset
routine, as required by IEC 60204-1 and
NFPA 79 machine safety standards.
Monitoring multiple guards with a series
connection of multiple safety interlock
switches is not a Safety Category 
Application (per ISO 189-1, EN 95-1).
A single failure may be masked or not
detected at all. When such a configuration
is used, procedures must be performed
regularly to verify proper operation of each
switch.
2-channel Gate Monitor Module, etc.)
Safety Switch
2
#1
provided with the safety module for
information regarding the interface of the
safety module to the machine stop control
elements.
#1
(2-channel E-stop Module
2-channel Safety Module
switches per interlock guard to an
appropriate -channel input safety
module.
1
WARNING . . .
Connection of Safety
Interlock Switches
CAUTION . . .
Electrical Installation
Two safety switches must be
Safety Switch
2
Input Channel
#2
#2
1
Series
Single gate
or guard