Hayward_FM EPM3-120 Version A 011409.indd

Field Manual
EPM3-120
On/Off/Jog Control
ISO5211 F03/F05 8P14
Actuator Specifications
Torque lb/Nm
Supply Voltage
Max Inrush Current
Running Current
Runtime (90O@60/50Hz)
Weight
Mechanical Connections
Electrical Entry
Electrical Terminations
Environmental Rating
Manual Override
Control
Case material
Motor Protection
120vac Operation
Ambient Temperature
Operating Range
EPM3-120
300”lbs / 35Nm
120vac
1.5A
0.5A
12sec / 13sec
5lbs / 2kg
ISO5211 F03/F05 8pt14mm
(2) 1/2” NPT
14 - 18 Ga.
4, 4X
8mm Wrench Drive
On/Off/Jog
Aluminum Alloy, Powder Coated
Split Phase Capacitor
275OF/135OC Thermal H Class
-22oF to +150oF
-30oC to +65oC
The following procedure is to be followed for set-up, calibration, testing and use of the EMP3-120 Series quarter-turn
electric actuators. Each unit is shipped from the factory with initial calibration of mechanical stops, cams and switches
completed. However, these are general settings and serve as a starting point for proper calibration of the actuator in its’
real-world application. There are no mechanical stops on this model.
Hayward_FM EPM3-120 Version A 011409
1. The actuator is
shipped from the
factory in its fully
CLOSED position.
This can be verified
by the observing
the red/yellow top
indicator. RED will
be showing when
fully closed.
2. Make the electrical connections as shown at right. For
operation only four connections are needed. The balance
of the connections are used for options and features.
Terminals A,B & C are an aux switch for the closed
position (adjustable), and terminals A,E & F are an aux
switch for the open position (adjustable). Both Switches
share a common terminal “A”.
This actuator has been factory calibrated
to operate between 00 and 900. Most
quarter-turn products will not require
recalibration of these settings.
Page 1 of 4 EPM3-120
* CONNECTIONS
OPTIONAL
FIELD
CONTROL
DEVICE
120/230VAC
LINE IN
CLOSED*
E
NOT CLOSED*
F
NOT OPEN*
C
AUX SW COM*
A
OPEN*
B
RUN CLOSED
4
CLOSED PILOT*
6
RUN OPEN
3
OPEN PILOT*
5
NEUTRAL
1
HOT
7
GND
SW4
AUXILIARY
SWITCH
(STANDARD)
SW3
AUXILIARY
SWITCH
(STANDARD)
SW2
SW1
HEATER
M
AC DRIVE
MOTOR
ALL SWITCHES
SHOWN WITH
ACTUATOR IN
FULL OPEN
POSITION
GND Screw
FIELD WIRING
(BY OTHERS)
THERMAL
SWITCH
INTERNAL WIRING
(FACTORY)
1. The lower cam is the OPEN end-of-travel adjustment.
Once the actuator is at its required OPEN position, with
POWER OFF, use a 2.5mm hex key to free up the cam
set screw. Once it is free, rotate the hex key to the
LEFT a few degrees to reset the switch roller arm. Then
snug the set screw up against the camshaft (CW) until
slight pressure is felt. Then SLOWLY rotate the hex key
pushing the cam to the RIGHT until you hear the “click”
on the bottom switch indicating that correct adjustment
has been achieved. Tighten the cam.
2. Apply power to the actuator and drive CLOSED at
least 15-20 degrees. Then drive the actuator OPEN until
the cam stops the electrical travel. Check to be sure this
is the correct OPEN position you require. Repeat step 1
if further adjustment is needed.
4. The second cam is the CLOSED end of travel
adjustment. Once the actuator is at its required CLOSED
position with POWER OFF, use a 2.5mm hex key to free
up the cam set screw. Once it is free, rotate the hex key
to the RIGHT a few degrees to reset the switch roller
arm. Then snug the set screw up against the camshaft
(CW) until slight pressure is felt. Then SLOWLY rotate
the hex key to the LEFT until you hear the “click” on
the second switch indicating that correct adjustment has
been achieved. Tighten the cam set screw.
5. Apply power to the actuator and drive OPEN at least
15-20 degrees. Then drive the actuator CLOSED until
the cam stops the electrical travel. Check to be sure
this is the correct CLOSED position you require. Repeat
step 4 if further adjustment is needed. Remove power
from the actuator.
Page 2 of 4 EPM3-120
Hayward_FM EPM3-120 Version A 011409
3. Apply power to the actuator and drive the actuator
fully CLOSED.
6. The THIRD cam is the OPEN auxiliary switch
adjustment. Drive the actuator to its OPEN position. Then
use a 2.5mm hex key to free up the cam set screw. Once
it is free, rotate the hex key to the LEFT a few degrees
to reset the switch roller arm. Then snug the set screw
up against the camshaft (CW) until slight pressure is felt.
Then SLOWLY rotate the hex key and cam to the RIGHT
until you hear the “click” on the third switch. Continue to
rotate the cam between 3 and 5 degrees to the RIGHT to
make sure the auxiliary cam switch changes state before
the actuator reaches its end of travel electrically. Tighten
the cam set screw.
7. The FOURTH cam is the CLOSED auxiliary switch
adjustment. Drive the actuator to its CLOSED position.
Then use a 2.5mm hex key to free up the cam set screw.
Once it is free, rotate the hex key to the RIGHT a few
degrees to reset the switch roller arm. Then snug the set
screw up against the camshaft (CW) until slight pressure
is felt. Then SLOWLY rotate the hex key to the LEFT until
you hear the “click” on the fourth switch. Continue to rotate
the cam between 3 and 5 degrees to the LEFT to make
sure the auxiliary cam switch changes state before the
actuator reaches its end of travel electrically. Tighten the
cam set screw.
Hayward_FM EPM3-120 Version A 011409
8. Refer to the wiring diagrams and current draw tables
on the back page of this document to make sure you have
properly sized wire.
NOTE, THIS ACTUATOR MUST HAVE THE EMT FITTINGS WATER TIGHT WITH
CONDUIT DRAINAGE INSTALLED AND POWER SUPPLIED TO UNIT TO KEEP THE
HEATER WARM AT THE TIME OF INSTALLATION . This unit should NOT be stored
outside unless it is powered up. When this unit is NOT powered up, it should be
stored in a clean, dry environment at all times.
Page 3 of 4 EPM3-120
Application Notes:
1. These actuators are designed to be used in either a horizontal or upright position.
Do NOT mount the actuator with the top below a horizontal position.
2. When installing conduit, use proper techniques for entry into the actuator. Use drip loops to prevent conduit condensate from entering the
actuator.
3. Both NPT conduit ports MUST use proper equipment to protect the NEMA 4x integrity of the housing.
4. The internal heater is to be used in ALL applications.
5. Do NOT install the actuator outdoors or in humid environments unless it is powered up and the heater is functioning.
6. Use proper wire size to prevent actuator failure (see chart below for proper wire sizing).
Easily distinguishable
yellow/red position
indicator
EPM3 Series Dimensional Data
Aluminum Casting
4X Protection
Modular Control
Cards
Heavy Duty Drive
Motor
Easily accessible
switch & cam stacks
On/Off
Control
Proportional
Control
NEMA 4
Cover Seal
Aluminum Casting
4X Protection
(2) 1/2” EMT
Ports
EPM3-120 Exploded View
(Typical)
Switch sequencing data is provided in the table below to show the
change-of-state points during the rotation of the actuator from OPEN
to CLOSED and back again. Switches for terminals 3 thru 6 are set
at the factory and should NOT be changed. The INCLUDED auxiliary
switches SW3 & SW4 are for terminals A thru F and those set points
may be modified if need be.
Wire sizing data is provided in the table below to assist in the selection
of the proper wire size for Hayward EPM3-120 series actuators using
various wire sizes over distance. Please make sure to reference the
correct voltage and do not exceed the indicated length of the wire run
for each model.
Wire Sizing Data
Switch Logic Map and Switch/Cam Arrangement
MAX distance between Actuator and
Supply (feet)
P1-12
3.0A
P1-24
0.8A
P1-120
1.5A
P1-230
1.0A
18
16
14
28
43
70
207
325
524
551
866
1399
1584
2489
6150
TB1 Terminal ID#
Wire
Gage
-5
o
0
o
5
o
F
E
C
B
6
4
5
3
Page 4 of 4 EPM3-120
o
o
85 90 95
o
}
}
}
}
AUX SW4
(Factory Set - Adj)
AUX SW3
(Factory Set - Adj)
SW2 CLOSE Stop
(Factory Set - Fixed)
SW1 OPEN Stop
(Factory Set - Fixed)
Hayward_FM EPM3-120 Version A 011409
F03/05 ISO
Flange