FF-SR Series
FF-SRS5939 Dual Channel Interface Control Module
for Electrosensitive Protective Equipment
FEATURES
• Complies with EU Directive for machines
98/37/EC, IEC 204, EN 60204, DIN VDE
E
+ M III
0113
• Supply voltage: 24 Vdc
• Dual input compatible with the fail-safe
solid state outputs of Honeywell
Electrosensitive protective Equipment
• Two cross-monitored relays with guided
contacts delivering two N.O. contacts and
one N.C. contact
S
uitable for interfaces
up to
CATEGORY 4
per EN 954-1
• Switching current from 1 mA to 6 A (gold
plated 5 µm contacts allow low current)
• Response time: 15 ms
• Selectable automatic or manual restart
modes (with permanent short-circuit
detection)
(pending)
• Selectable Final Switching Devices
monitoring loop for the control of
external relays or contactors
• LEDs indicates inputs and outputs
status, and restart condition
• Removable terminal strips for ease of
maintenance
• 45 mm/1.77 in. width housing
The FF-SRS5939 Interface Control Module is designed to be used with the FF-SYA
Safety Light Curtain in emergency stop circuits when danger to personnel or
machinery is present. Its slim 45 mm/1.77 in. width housing is ideal for space
restricted areas. This module provides a Control Reliable interface between the
FF-SYA Light Curtain and the machine control circuitry. A single fault does not
prevent the normal stopping action from taking place but will prevent the next
machine cycle to start until the fault is corrected. This is accomplished by the use of
redundant circuitry, self-checking capability and positive guided safety relay
outputs. These redundant safety relay outputs are rated for 6 amps to directly
operate with the machine control actuators using 2 NO and 1 NC output contacts.
These output contacts are also gold plated to ensure compatibility with very low
current requirements (such as a monitoring circuit).
The FF-SRS5939 Module can be wired for either Automatic or Manual Restart
modes of operation and also provides Final Switching Device (FSD) monitoring if
interfaced with external switching devices. The FF-SRS5939 is equipped with LED
indicators that provide diagnostic information and is equipped with removable
wiring strips to make replacement fast and easy.
APPLICATIONS
To be used with the FF-SYA safety light
curtain in point-of operation protection or
zone guarding protection such as:
• Metal-forming, milling and drilling
machines
• Spot-welding machines and fine-boring
machines
• Pressing, moulding and thermoforming
machines
• Conveyors/transfer lines
!
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet (or catalogue) is for reference only. DO NOT USE this document as system
installation information.
• Complete installation, operation and maintenance information is to be referenced for each product.
MISUSE OF PRODUCT
• The FF-SRS5939 module is designed to be used with the Honeywell FF-SYA safety light curtain equipped with fail-safe solid state
outputs. The FF-SYA performs cross-fault detection between its outputs. The FF-SRS5939 module does not perform the cross-fault
detection between its inputs. To ensure the highest safety category, do NOT use the FF-SRS5939 with any other equipment. For other
equipment, use the FF-SRS5935 or FF-SRS5925 dual channel emergency stop module. Both modules perform the cross-fault
detection between the safety device outputs.
Failure to comply with these instructions could result in death or serious injury.
FF-SRS5939 Series
• Industrial Safety Products •
233
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