FF-SNC
Safety Non Contact Switch
Instructions for use
IMPROPER INSTALLATION
• Consult with US and/or European safety agencies and
their requirements when designing a machine control,
interface and all control elements that affect safety.
• Strictly adhere to all installation instructions.
Failure to comply with these instructions could result
in death or serious injury.
PRODUCT DESCRIPTION
The FF-SNC Honeywell safety non contact switch is a tamper
resistant safety system for monitoring machine guards. The
actuator being a passive component, the safety switch is the only
component that needs to be wired to the control unit and cannot be
defeated by a regular magnet.
Each system is made up of one or several safety switches,
actuators and a control unit. The Honeywell FF-SNC safety non
contact switches are designed in compliance with the requirements
of the EN 954-1 European Standard for Category 3 Protective
Devices.
The FF-SNC is especially suited for applications where perfect door
alignment can not be attained. The FF-SNC Series can be
mounted on sliding, hinged or removable machine guards. The
output of the control unit is triggered as soon as the distance
between the safety switch and the actuator is greater or equal to
8 mm/0.32 in. This switching distance compensates for the
machine vibration or a minor issue with the installation alignment.
The sensor and actuator small size makes it usable under tight
space requirements. The safety switches and the actuators provide
excellent chemical and mechanical resistance. Stainless steel
housing versions fulfil the requirements of the Food and Beverage
industry.
The FF-SNC400 safety control unit comes in a 75 mm / 2.95 in
package and can monitor up to 4 sensors.
The FF-SNC200 safety control unit with its 22,5 mm / 0.89 in width
will easily find a place in the electrical cabinet and can monitor
2 sensors. Both control units can be placed up to 100 m / 328 ft
away from the safety non contact switches. The indicators located
on the front cover of both control units provide individual door status
information.
The FF-SNC1EXT extension module can be added to the
FF-SNC400 or FF-SNC200 control unit and allows the
connection of 5 additional sensors.
APPROVALS
CE The product, packaging and
documentation of FF-SNC Series
products is CE mark following an
examination by TÜV.
cULus This product is pending approval at
Underwriters Laboratories Inc.
According to Canadian and U.S. safety
requirements.
Suitable for interfaces
up to
CATEGORY 3
per EN 954-1
U
®
CUSSTEDLI
L
(pending)
DIRECTIVES COMPLIANCE
Machinery Directive 98/37/EC
Low Voltage Directive 73/23/EC
Electromagnetic Compatibility Directive 89/336/EC
REGULATIONS COMPLIANCE
Regulation Title
OSHA 29 CFR
1910.212
OSHA 29 CFR
1910.217
General Requirements for
(guarding of) all Machines
Requirements and
Safeguarding of Mechanical
Power Presses
STANDARDS COMPLIANCE
Standard Title
EN 292 Safety of Machinery – Basic
Concepts, General Principles
for Design
EN 60204 Safety of Machinery – Electrical
Equipment of Machines
EN 954-1 Safety of Machinery – Safety
related parts of control system
EN 1088 Interlocking Devices associated
with Guards
ANSI B11.1 Construction, Care and Use of
Mechanical Power Presses
ANSI B11.2 Construction, Care and Use of
Hydraulic Power Presses
ANSI B11.19 Safeguarding Performance
Criteria for the Design,
Construction, Care and Use
ANSI/RIA R15.06 Safety Requirements for
Industrial Robots and Robot
Systems
UL 508 Industrial Control Equipment
UL 991 Test for Safety related Controls
employing solid state devices
NFPA79 Electrical Standard for Industrial
Machinery
107099-10-EN FR26 GLO 602 Printed in England
SPECIFICATIONS
Switch
Operating temperature -10 °C to +55 °C / 14 °F to 131 °F
Connection to the control unit Max. Cable length: 100 m / 328 ft
Material ABS (FF-SNC1SA03PA) or Stainless Steel and Resin filled (FF-SNC1SA03PS)
Sensing range 5-7 mm / 0.20 – 0.27 in On; 8-12 mm / 0.32 – 0.47 in Off
Optimum gap1 mm
Standard cable length 3 m / 9.84 ft or 5 m / 16.4 ft
Sealing IP 67
Fixing 2 x (M4x20 mm) Tamper proof screws (supplied with the product)
Control unit / Extension module
Category Category 3 according to EN 954-1
Supply voltage 24 Vdc/Vac ± 15 % / 110 Vac ± 15 % (FF-SNC400R4 only)
Response time of the control unit 15 ms (with or without extension module)
Power consumption (including
6 VA (with or without extension module)
sensors)
Operating temperature -10 °C to + 55 °C / 14 °F to 131 °F
Storage temperature -20 °C to 60 °C / -4 °F to 140 °F
Output 2 NO + 1 NC contacts (4 A / 250 Vac; 2 A / 30 Vdc)
Restart Manual or automatic
Sealing IP 40 Housing, Terminals IP 20
Mounting 35 mm / 1.37 in DIN rail
LED indicators
FF-SNC200R2 control unit: Power, Run and 2 guard status indicators
FF-SNC400R4 control unit: 4 guard status indicators and selection indicators
Material Polycarbonate, red
Ordering information: Description Weight
FF-SNC200R2 24 Vdc/Vac Control unit for monitoring up to 2 gates: 0,235 kg / 0.517 lb
FF-SNC400R2 24 Vdc/Vac Control unit for monitoring up to 4 gates: 0,49 kg / 1.078 lb
FF-SNC400RE 110 Vac Control Unit for monitoring up to 4 gates: 0,63 kg / 1.386 lb
FF-SNC1SA03PA Safety switch + actuator: 3 m / 9.84 ft cable: 0,169 kg / 0.371 lb
FF-SNC1SA05PA Safety switch + actuator: 5 m / 16.4 ft cable: 0,255 kg / 0.56 lb
FF-SNC1SA03PS Safety switch + actuator: 3 m / 9.84 ft cable –
0,265 kg / 0.583 lb
Stainless Steel Housing
FF-SNC1ACS Actuator Only: Stainless Steel Housing 0,077 kg / 0.169 lb
FF-SNC1ACA Actuator Only : ABS Housing 0,028 kg / 0.061 lb
FF-SNC1EXT Extension Module 0,135 kg / 0.297 lb
MOUNTING DIMENSIONS (mm/in) for reference only
FIG 1. FF-SNC Control unit
H
W
A1DRBLDRBLDRBL
GATE 2
GATE 1
GATE 4 GATE 5
A2DRBLDRBL BL
D
GATE 3
DR
H
FSNC_1
FIG. 2. FF-SNCS1A03PS - FF-SNCS1A03PA
29 / 1.14
ø 4,2 / 0.16
ø 8,1 / 0.32
W
H
D
53 / 2.08
22 / 0.86
FF-SNC200R2
22,5 / 0.88
84 / 3.30
119 / 4.68
13,5 / 0.53
SIDE
6,4 / 0.25
FF-SNC1EXT
119 / 4.68
3 / 0.11
ø 4,2 / 0.16
ø 8,1 / 0.32
FF-SNC400R2
FF-SNC400RE
75 / 2.95
74 / 2.91
28 / 1.10
52 / 2.04
22 / 0.86
(in mm/in)
14 / 0.55
SIDE
6,4 / 0.25
3 / 0.11
2 107099-10-EN FR26 GLO 602 Printed in England
MECHANICAL INSTALLATION
The FF-SNC Control unit must be installed inside a NEMA 3 (IEC IP 54) rated enclosure or better. The module can be
clipped easily onto a 35 mm (1.38 in.) width DIN rail (see figure 3 for installation and removal).
FIG 3. INSTALLATION DIAGRAM
1. The FF-SNC control
unit is designed to fit
standard 35 mm /
1.37 in symmetric DIN
rail.
2. To remove: Place the tip
of a small screwdriver into
the white catch at the
bottom of the box (1) and
gently lever out.
This releases the retaining
clip and allows the unit to
be titled (2) and removed (3).
MOUNTING SAFETY SWITCH SENSORS
The FF-SNC safety swiches can be fitted to sliding, hinged or removable machine guards. Mount the fixed part of the
safety switch to the machine frame and the actuator on to the opening edge of the door ensuring that the targets on the
printed faces of the switches are aligned (see Fig. 4).
FIG. 4
FIG. 5
SLIDING DOOR
FF-SNC
HINGED DOOR
FF-SNC
FF-SNC
GUARD DOOR
LIFT OFF DOOR
FSNC_10EN
GUARD SWITCHES
The FF-SNC safety switch sensors have 2 fixing holes and are supplied with M4x20 mm Torx Proof screws to be specified.
FIG. 6. FIG. 7
WRONG
FSNC_4
CORRECT
Leave a 1 mm/0.039 in
gap to prevent damage
FSNC_3
FSNC_5
Min. 50 mm/1.97 in between actuators
as above
DO NOT enlarge the fixing holes!
Failure to comply with these instructions will result in product damage.
107099-10-EN FR26 GLO 602 Printed in England 3