Flowserve L120 Series Limitorque Actuation Systems - Manual (Page 20)

Limitorque Actuation Systems L120 Series FCD LMENIM1201-04-AQ – 05/15
20
7. Correct the phase rotation one of two ways:
• Switch any two of the three power leads for three-phase power, or
• Reverse the armature leads for single-phase or DC power.
The actuator should operate correctly and will be stopped at the end of travel positions by torque or limit
switch functions.
Table 5.1 – Required Rating for External Wiring
Up to Use wire rated at least
40°C 60°C
60°C 75°C
Figure 5.1 is a representation of a typical application and may not be applicable to your specific actuator.
Please refer to the wiring diagram supplied with your actuator to confirm the actual
equipment supplied.
5.2 Manual Operation
Piece numbers refer to Figure 5.2.
Counterclockwise rotation of the Declutch Lever (piece 9) causes the declutch actuator to lift the clutch
sleeve out of engagement with the worm gear. Drive lugs on top of the clutch sleeve engage matching
lugs in the Handwheel Adapter (piece 26) and then latches engage the clutch sleeve in this position. The
actuator is now in the handwheel driving option. Energizing the motor at this point will cause the latches
to drop out and the spring-loaded clutch sleeve reengages with the lugs on the worm gear. The actuator
is once more in motor operation.
NOTE 1: The shift from manual operation to motor operation is automatic and does not require external
positioning of the declutch shaft.
NOTE 2: If the declutch mechanism does not engage, rotate handwheel approximately 30-45° and
attempt manual engagement. There is a chance that the lugs on the Clutch Sleeve (piece 19) and
Handwheel Adapter (piece 26) are not correctly aligned.