Flowserve LTQ008 Series User Instructions page 29

LTQ008 – LTQ230 Series Single-Phase Products User Instructions –
c. When the actuator reaches its fully CW (0°) end-of-travel position, the CLOSE LED indicator will stay
illuminated on the face of the LCS.
6. Place the LCS move switch in the CCW (90°) position, and verify that the direction of the position indicator is
CCW.
a. On LTQ008-203 Series units, during CCW travel movement, depress the lever on the lower torque switch
to interrupt the movement of the actuator, as a check of the system.
i. When depressing the torque switch lever, the FAULT LED will illuminate on the face of the LCS.
b. While traveling to the fully CCW (90°) position, the OPEN LED will be flashing.
c. When the actuator reaches its fully CCW (90°) end-of-travel position, the OPEN LED indicator will stay
illuminated on the face of the LCS.
7. Place the move switch in the CW (0°) position and drive to approximately mid-travel, then stop.
8. Generate a mid-travel command (12 mA), then place the LCS mode switch in the REMOTE position.
a. The REMOTE LED will illuminate on the face of the LCS.
b. The actuator should move only to match the incoming signal, if at all.
i. If the actuator moves, and continues to move away from the midpoint, immediately remove power
from the actuator to stop movement.
1. Manually position the actuator back to a mid-travel position.
2. Place a meter in series with terminal 4 (signal IN) and the wire coming from the field controller (+),
ensuring a reading of +12 mA.
a. If it does not read +12 mA, check the polarity of the incoming analog signal to ensure a
reading of +12 mA. Repeat step 8.
ii. If the actuator moves momentarily and stops at the mid-stroke position, proceed to step 9.
iii. If the actuator does not move at all, rotate the handwheel slightly in either direction to offset the
controller.
1. The actuator should move back to the midpoint position and stop. Proceed to step 9.
9. Generate a CW move command (4 mA), and verify that the direction of the position indicator is CW.
a. The actuator should run CW until it reaches its CW end-of-travel position.
b. The CLOSE LED indicator on the front of the panel should illuminate.
c. While power is on, an analog feedback signal out provides an electronic position of the actuator (i.e., 4
mA is fully CW and 20 mA is fully CCW - reference terminals 6 and 7).
10. Generate CCW move command (20 mA), and verify that the direction of the position indicator is CCW.
a. The actuator should run CCW until it reaches its CCW (90°) end-of-travel position.
b. The OPEN LED indictor on the front of the panel should illuminate.
c. While power is on, an analog feedback signal out provides an electronic position of the actuator (i.e., 4
mA is fully CW and 20 mA is fully CCW).
11. If the actuator does not stop at the correct position(s), fails to move in the correct direction(s), or fails to stop
movement when the respective torque switch levers are depressed, immediately stop the operation of the
actuator, and refer to the Table of Contents for the section to reference for the corrective action needed.
12. Place the LCS in LOCAL or REMOTE mode to put the actuator into service.
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