Honeywell SYA14 Series Manual page 659

LED INDICATORS
The FF-SRE3081 module has two green LED status
indicators (K1 and K2) as illustrated below.
Illuminated K1 and/or K2 LEDs indicate(s) that the
corresponding internal safety relay is energized. Both
K1 and K2 relays must be energized to have the
normally open contacts 13/14...73/74 in a closed
condition. If one of the safety relays de-energizes, the
normally open contacts will immediately open. The
normally closed contact 81/82 must be connected to
the monitoring loop of the Honeywell safety control
modules (except FF-SR05936 and FF-SRT Series) or
any other safety device that has monitoring loop
capability.
APPLICATION WARNINGS
IMPROPER INPUT CONNECTIONS
• To ensure the highest level of safety, connect two safety device outputs into the input channel of the FF-SRE3081
safety module.
•
If only one safety output is used, connect the FF-SRE3081 module as shown in the single input channel example. In
this case, take extra precaution to avoid any short circuit possibilities on this single input channel. Conduit may be
used to protect wiring. Additional protection may also be applied to the terminal strips inside the machine cabinets to
avoid any possible short circuits.
IMPROPER FF-SRE3081 MONITORING
• Always connect the normally closed contact of the extension module (81/82) to the external loop monitoring circuit of
the Honeywell safety control modules (except FF-SR05936 and FF-SRT Series) or any other safety device that has
monitoring loop capability. This configuration will ensure that the two safety relays in the extension module are
monitored and operate correctly.
CONTACT WELDING
• Always protect all safety contacts with correctly rated fuses. These fuses must never exceed the rated FF-SRE3081
safety output capability to prevent contact welding.
IMPROPER EXTERNAL SAFETY RELAY MONITORING
• When using additional safety relays, always connect one normally closed contact of each relay in series inside the
Final Switching Device (FSD) monitoring loop circuit of the Honeywell safety control modules (except FF-SR05936
and FF-SRT Series) or any other safety device that has monitoring loop capability. This connection will ensure
correct operation of the external relays after each FF-SRE3081 activation.
•
If the FF-SRE3081 is not activated often, the customer is responsible for accomplishing any additional test
procedures of the external safety components. For instance, this testing may be done every day by removing the
power from the FF-SRE3081 at machine power up.
IMPROPER ARC SUPPRESSOR INSTALLATION
• Never install an arc suppressor across the safety output contact of the safety control module.
• Always install arc suppressors across the coils of external safety relays.
Failure to comply with these instructions could result in death or serious injury.
NOTICE
• The FF-SRE3081 will immediately change state when the two input channels A1/A2 and A3/A4 receive power. No
timing limitation exists when power is applied to each of these two safety inputs.
107014-10 EN FR26 GLO 0499 Printed in Germany
FIG 8. MODULE FRONT PANEL
A1 A3 13 23 33
(+) (+)
Honeywell
FF-SRE3081
K1
K2
A2 A4
(-) (-) 14 24 34
43 53 63 73 81
44 54 64 74 82
5