5 Reassembly
18 of 44
EA-C
Terminal box under the actuator cover (handwheel on top - on 230 V and 400 V 3-
point actuators)
Fig. 9:
Loosen the protective
cap of EA-C 140
Fig. 10:
Undo the fastening
screw of EA-C 20
1. For EA-C 140 actuators, unscrew the protective cap.
2. Loosen and store the fastening screw of the handwheel.
3. Remove the handwheel.
4. For EA-C 140 actuators, loosen and store the hexagon socket head cap screws of
the actuator cover.
5. Use both hands to gently lift off the actuator cover.
6. Unscrew the cable gland.
7. Choose the supply voltage and control signals in accordance with the data on
the name plate.
8. Connect the cables for power supply and control to the terminals as shown in
the wiring diagram. (
ð
Section 9.3, Page 32)
ð
Use separate power cables for this purpose.
Fig. 11:
Power cable and control cable
9. Mechanically secure the power cable and the control cable before the terminals
against loosening.
10. Tighten the cable gland up to one full turn.
11. A thin coat of grease may be applied to the joint ring to facilitate fitting of the
actuator cover.
12. Properly place the joint ring in the groove of the housing.
Fig. 12:
Markings on
actuator cover / housing
13. Slip the actuator cover over the handwheel shaft.
14. Observe the marking.
15. Do not press down the actuator cover by force. Turn the actuator cover gently
to and fro until you can feel it lock in position.
16. Slide the actuator cover over the joint ring as far as it will go. When properly
seated, the actuator cover cannot be turned any more, and its lower edge is
flush with the housing edge.
17. Mount the handwheel on the handwheel shaft until it has seated. Secure the
handwheel with the fastening screw onto the flattened area of the shaft.
18. Fasten the actuator cover with the screws.
19. For EA-C 140 actuators, tighten the protective cap.
20. Fasten the cable gland.
Terminal box under the actuator cover (side-mounted handwheel, on EA-C 200 and
250 actuators)
Fig. 13:
Open the actuator
cover.
1. Undo the hexagon socket head cap screws from the actuator cover and store
them.
2. Use both hands to gently lift off the actuator cover.
3. Unscrew the cable gland.
4. Choose the supply voltage and control signals in accordance with the data on
the name plate.
5. Connect the cables for power supply and control to the terminals as shown in
the wiring diagram. (
ð
Section 9.3, Page 32)
ð
Use separate power cables for this purpose.