Flowserve Modutronic 20 II Modulating Position Controlle - Manual (Page 11)

11
Limitorque Actuation Systems Modutronic 20 II FCD LMENIM4002-00 – 08/06
flowserve.com
4
Initial Checkout
and Setup
4.1 Verify Correct Motor Rotation (Phasing)
and OPEN/CLOSE Pushbutton Operation
It is very important to check for correct motor rotation to insure that serious damage to the valve or
other equipment does not occur. If the actuator motor rotates in the wrong direction, over-torque
damage could occur to the equipment.
Prior to being shipped from the factory, each actuator is inspected to verify proper operation of the
Torque and Position Limit Switch and to ensure that they function correctly (i.e. closes when the
CLOSE pushbutton is depressed, opens with the OPEN pushbutton, etc.). These inspections are made
with a properly phased power source connected as described in the actuator manual.
CAUTION: To ensure proper operation and to prevent your actuator or other actuated equipment
from damage, verify that your unit is properly connected to its power source.
NOTE: Your application may vary from the following standard wiring configurations for three-
phase, single-phase, and DC motors. Refer to your actuator wiring diagram for user-specific wiring
configuration.
Three-Phase Motor
1. Using the Handwheel, move the valve to a midtravel position (midtravel position allows electrical
operation in the valve “safe” area and keeps the OPEN and CLOSED Limit Switches from tripping
while testing motor direction).
2. Test motor direction by momentarily pressing the OPEN pushbutton:
a. If the actuator moves toward CLOSED, immediately turn all power OFF and reverse the
motor leads T1 and T3.
NOTE: Refer to your actuator wiring diagram for user-specific wiring configuration.
b. If the actuator moves toward OPEN, the motor is wired properly for the application.
a