Two-position control, 120 vac, Service – Dodge ES142 User Manual
Page 13
Dodge Engineering & Controls, Inc.
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Installation
ES142 Spring Return Electronic Actuators
129-270 EAI/ES-13 DEI,
Inc.
Two-Position Control, 120 VAC
1. Check that the wires are connected correctly.
2. Connect wires to a Digital Multimeter (DMM) with the dial set at VAC to verify that the operating voltage is
within range.
3. Check
operation:
a.
Connect wires 3 (black) and 4 (white) to 120 VAC signal.
b.
Allow the actuator shaft coupling to rotate from 0 to 90°.
c.
Disconnect wire 3 (black) and the actuator shaft coupling returns to the 0 position.
4. Check
spring
return:
a.
Connect wires 3 (black) and 4 (white) to the 120 VAC signal.
b.
Allow the actuator shaft coupling to rotate half-way.
c.
Disconnect wire 3 (black).
d.
The spring returns the actuator shaft coupling to the fail 0 position.
e.
Connect wire 3 (black) and the actuator shaft coupling begins to move.
5. Check the auxiliary switch A (-S option):
a.
Set the DMM dial to OHMS (resistance) or continuity check.
b.
Connect wires S1 and S3 to the DMM. The DMM should indicate an open circuit or no resistance.
c.
Apply a 120 VAC across wires 3 (black) and 4 (white).
d.
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch A.
e.
Connect wires S1 and S2 to the DMM. The DMM should indicate an open circuit or no resistance.
f.
Disconnect wire 3 (black).
g.
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch A.
6. Check the auxiliary switch B (-S option):
a.
Set the DMM dial to OHMS (resistance) or continuity check.
b.
Connect wires S4 and S6 to the DMM. The DMM should indicate an open circuit or no resistance.
c.
Apply a 120 VAC across wires 3 (black) and 4 (white).
d.
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B.
e.
Connect wires S4 and S5 to the DMM. The DMM should indicate an open circuit or no resistance.
f.
Disconnect wire 3 (black).
g.
The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B.
Service
WARNING:
Do not open the actuator. If the actuator is inoperative, replace the unit.