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2CPS Series
E. Wire the switch (use 90 °C wire when the ambient
temperature is over 75 °C):
• Standard wiring version: Connect 0,75 mm2–1,5 mm2
(18 AWG–16 AWG) stranded wire or 0,75 mm2–
2,5 mm2 (18 AWG–14 AWG) solid wire to the terminals.
Torque:
− Switch terminal screws to 0,8 N m–1,0 N m
[7 in lb–9 in lb].
− Ground screw to 1,0 N m–1,8 N m [9 in lb–
16 in lb].
• Heavy duty wiring removable contact block version:
Connect 3,5 mm2 (12 AWG) or smaller stranded or solid
wire to the terminals. Torque:
− Switch terminal screws and ground screw to
1,0 N m–1,8 N m [9 in lb–16 in lb].
F. OPTIONAL: Wire the LED indicator. Wrap the wire
clockwise around the terminal screws. Ensure all wire
strands are secured under the screw heads. Torque the
terminal screws to 0,8 N m–1,0 N m [7 in lb–9 in lb]. For dc
indicators, ensure the positive lead wire is attached to the
terminal with the "+" sign. (There is no polarity requirement
for ac indicators.)
G. Seal the conduit opening according to the instructions in
PK 80112 (included).
H. Reassemble the cover plate. Torque the cover screws to
1,5 N m (13 in lb).
STEP 2: INSTALL J-HOOK TURNBUCKLE AND
ACTUATING CABLE
A. Ensure you have the following:
• Red plastic-coated aircraft cable 3,18 mm [1/8 in]
diameter to 4,76 mm [3/16 in] diameter in desired length,
not to exceed 76 m [250 ft] per each actuator.
• J-hook turnbuckle with locknuts.
• Thimbles to fit all terminations.
• Cable clamps to fit all terminations.
B. Attach the hook end of the J-hook turnbuckle to the
actuator.
C. Attach the eye end of the J-hook turnbuckle to the cable
using one thimble and one cable clamp by fitting the cable
in the thimble groove and placing the cable clamp as close
to the thimble as possible.
D. Tighten the cable clamp according to the manufacturer's
instructions. (The torque for the cable clamp in the
accessory packet is 7,3 N m–9,0 N m [65 in lb–79 in lb].)
NOTICE
• If improved cable visibility is needed, install labels,
markers or flags to the cable or adjacent to the cable.
STEP 3: INSTALL CABLE SUPPORTS (EYEBOLTS)
WARNING
IMPROPER OPERATION
•
Do not allow excessive side loads to occur that could
bend the switch actuator shaft.
•
Failure to comply with these instructions could result
in death or serious injury.
NOTICE
• The first cable support should be in line with, and no
farther than, 0,46 m [18 in] from the end of the actuator
shaft.
• When changing the actuating cable direction, i.e., around
a corner, ensure the cable runs freely through a pulley or
cable supports.
2 Honeywell • Sensing and Control
ISSUE 5
A. Ensure you have the following:
• Cable supports to fit the cable.
B. Install a cable support as close to the end of the actuator
shaft as possible without interfering with the switch
operation.
C. Install the cable supports at intervals of no greater than
2,4 m [8 ft] along the cable span.
D. Thread the cable through the cable supports.
STEP 4: INSTALL CABLE TERMINATION
NOTICE
• With an endspring installed, the switch will operate
satisfactorily over a temperature change of
±17 °C [±30 °F] up to a typical length of 76 m [250 ft].
Without an endspring installed, the temperature change
allowed is ±8 °C [±15 °F].
• In order to comply with standards, install a cable pull
switch at each end of the cable or an endspring at the
opposite end of the cable from the switch.
A. RECOMMENDED: Install an endspring:
• Ensure you have the following:
− Thimbles to fit all terminations.
− Cable clamps to fit all terminations.
− Endspring to fit all terminations.
• Install an endspring at the end of the cable opposite the
switch in the same manner as Steps 2.C and 2.D.
• Attach the endspring to a fixed support.
B. Secure the cable end to a fixed support:
• Ensure you have the following:
− Thimbles to fit all terminations.
− Cable clamps to fit all terminations.
− Fixed support to fit all terminations.
• Attach the cable end to a fixed support in the same
manner as Steps 2.C and 2.D.
STEP 5: ADJUST CABLE TENSION
A. Tighten the turnbuckle until the tension indicator is in the
middle of the indicator window.
B. Tighten the turnbuckle locknuts.
C. Periodically check and adjust the cable tension.
STEP 6: VERIFY INSTALLATION BY PERFORMING
FUNCTIONAL TESTS
CAUTION
SWITCH DAMAGE
• Do not attempt to rotate the reset knob from OFF to RUN
unless the switch is under proper tension.
Failure to comply with these instructions may result in
product damage.
A. Ensure the cable actuates freely. Ensure the installation
elements are not subject to mechanical damage due to
positioning or location.
B. Turn the reset knob to RUN.
C. PULLED CABLE STATE: Pull the cable. Ensure the reset
knob rotates to OFF.
D. Turn the reset knob to RUN.
E. SLACKENED CABLE STATE: Unhook the J-hook
turnbuckle. Ensure the reset knob rotates to OFF.
F. Reattach the J-hook turnbuckle and turn the reset knob to
RUN.
NOTICE
• After actuation and before resetting the 2CPS, the
machinery should be inspected along the entire length of
the actuating cable in order to determine the reason for
actuation.
PK 80155
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