Honeywell SYA14 Series, Manual

Page: 457 / 737

Snap Action Cable Pull Safety Limit Switch
ISSUE 3
PK 81592
2 For application help: call 1-800-537-6945 Honeywell
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MICRO SWITCH Sensing and Control
Figure 3: Typical Single Head Switch Installation
1
2
3
4
Key
1. 12 in (30 cm) maximum
2. 8 ft (2,4 m)
3. 200 ft (60 m) maximum
4. Actuating cable
Figure 4: Typical Duplex Head Switch Installation
Key
1. 12 in (30 cm) maximum
2. 8 ft (2,4 m)
3. 200 ft (60 m) maximum
4. Actuating cable
SWITCH MOUNTING, WIRING AND SEALING
In order to comply with EN418, install a cable pull
switch at each end of the cable.
Step 1 - Ensure you have the following:
•
Switch.
•
(2) #10-32 UNF screws.
•
#14-#16 AWG stranded or #16-#18 AWG solid
wire.
Step 2 - Mount switch:
SWITCH DAMAGE
Do NOT mount switch upside down or at low point
of conduit runs. Condensation problems may
develop.
Failure to comply with these instructions may
result in product damage.
•
Single head: Mount using two #10-32 UNF
screws from either front or back of switch. Ensure
a minimum of four threads of engagement.
Torque to 43-52 in-lb (4,-5,9 N-m).
•
Duplex head: Mount using two #10-32 UNF
screws through mounting feet on left and right of
switch enclosure. Ensure a minimum of four
threads of engagement. Torque to 43-52 in-lb
(4,9-5,9 N-m).
S
tep 3 - Wire switch:
•
Connect stranded or solid wire to switch’s
pressure type connector terminals. (Refer to
circuit diagram on switch housing. Diagram
depicts switch contacts when cable is at proper
tension.) Torque terminal screws and ground
screw to 7-9 in-lb (0,8-1 N-m).
Step 4 - Seal conduit connection:
•
Seal with Teflon tape or pipe dope. If connector
is used to secure cable to enclosure, torque
connector to 16-19 in-lb (1,8-2,2 N-m).
IMPROPER SYSTEM PERFORMANCE
•
The Maintained Cable Pull Safety Limit Switch
provides only the front end switching/sensing
function. The external machine interfaces, and
the safety monitoring of those interfaces, is the
responsibility of the machine safety control
system.
•
Consult all local, state, and national laws, rules,
codes, and regulations relating to the use of
safety switches, machine interfaces and safety
monitoring that affect safety.
•
The user is SOLELY RESPONSIBLE for
determining the appropriate level of risk
warranting this type of machine safety control
system.
•
Maintained Cable Pull Safety Limit Switches must
be installed in a fashion that complies with all
codes and standards that are applicable to the
particular application of the device.
Failure to comply with these instructions
could result in death or serious injury.