Start-up/commissioning, Two-position control, 24 vac/dc, Service – Dodge ES142 User Manual
Page 12
Dodge Engineering & Controls, Inc.
Toll Free (877) 334-2875 Fax: (978) 244-1422
Installation
ES142 Spring Return Electronic Actuators
129-270 EAI/ES-12 DEI,
Inc.
Start-Up/Commissioning
Two-Position Control, 24 VAC/DC
1. Check that the wires are connected correctly.
2. Connect wires 1 (red) and 2 (black) 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 1 (red) and 2 (black) to 24 VAC/DC signal.
b.
Allow the actuator shaft coupling to rotate from 0 to 90°.
c.
Disconnect wire 1 (red) and the actuator shaft coupling returns to the 0 position.
4. Check
spring
return:
a.
Connect wires 1 (red) and 2 (black) to the 24 VAC/DC signal.
b.
Allow the actuator shaft coupling to rotate half-way.
c.
Disconnect wire 1 (red).
d.
The spring returns the actuator shaft coupling to the fail 0 position.
e.
Connect wire 1 (red) 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 24 VAC signal to wire 1 (red).
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 1 (red).
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 24 VAC signal to wire 1 (red).
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 1 (red).
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.