mechanical limit of the actuator or the
attached equipment. Failure hereof can cause
mechanical damage of the actuator or the
equipment. Please be advised that by moving
the external reference switch the extended
position will be moved as well by the same
distance in the same direction. The stroke is
stored as a fixed length with the zero position
defined by the external limit switch.
Connection
The EPS 02 is equipped with a four pole
pluggable X2 connector for the limit switch
output relay contacts and a five pole
pluggable X1 connector for the 24V DC
power supply, external limit switch and the
motor thermal switch. For the physical
layout please refer to the connection
diagram.
Power Supply Connector X1
The five pole female connector is equipped
with screw terminals for easy interface to
customers control wires. Each terminal will
accept one # 16 AWG wire.
Pin 1 GND
Pin 2 +24V DC
Pin 3 External reference switch
Pin 4 Aux 24V DC supply
Pin 5 Motor Over temperature switch
Relay Contact Plug
There are two potential free relay output
contacts available to shut down the actuator.
The contacts should be hard wired into the
reversing motor starter or VFD control
circuit to provide reliable end of stroke
protection. Within the permissible stroke
range of the actuator the contacts are closed.
Relay output contact landed on terminal X2
pin 1+2 will be opened if the selected retract
position is reached or if 24V DC on the
external reference switch input X1 pin 3 is
present. Relay output contact landed on
terminal X2 pin 3+4 will be opened if
the selected extend position is reached.
X2 pin 1+2: Limit retract
X2 pin 3+4: Limit extend
Note: If the 24V DC supply power is
turned off both relay output contacts
will open up.
Technical Data
EPS 02 Power Supply requirement:
Voltage: 24V DC
Range: +20% / -30 %
Current: 50 mA
Output relay Contact:
Max Voltage: 250V AC @ 5A
30V DC @ 5A
Digital Input:
Voltage level: 24V DC
Range: +20% / -30%
Motor Over Temperature Protection:
Input Type: Thermal Switch
Position Accuracy: Stroke Length /
10 Bit * RPM on Sensor Shaft
Data Storage
Duration: 10 Years
Battery: Lithium 1.2Ah
Operating Temperature: -40
o
F to 185
o
F
Protective Rating: IP 00, circuit board
sealed
Enclosure: Without
Connector:
Pluggable
terminal
connection
LED Display
The operating status of the EPS 02 will
be indicated via three on board LED’s.
LED yellow:
LED is on steady if the actuator is in its
selected stroke range. The LED is off if
