LTQ008 – LTQ230 Series 3-Phase
Products
User Instructions –
AIIOM000165
EN
Page
23
of
40
6
Commissioning
- The factory sets and tests the end-of-travel stops (cams) of this actuator to respond between 0°
and 90° of rotation. If the end stops require no changes, this unit is ready for immediate operation using the
following procedure. However, if the cam positions require changes, refer to section 0
Adjustments
.
- This procedure first establishes correct direction and control as these must be verified to
proceed. Regardless of the level of the three-phase actuator, the actuator must drive CW when commanded
to do so and stop when the actuator reaches the fully CW travel position. The same applies to the CCW
operation.
- Follow these directions carefully and in order. Actuator damage due to improper testing and
commissioning will not be covered under the warranty.
- This procedure has many sections with the text “
immediately remove power from the
actuator to stop movement
”. Quick action is necessary to prevent the actuator from possibly driving into the
mechanical stops, past the limits of the valve or damper attached, and to simply keep the actuator in a known
position for a quick, efficient installation as a result of any unexpected or uncontrolled movement.
6.1
NCU Commissioning - On/Off Control
-
Allowing the motor to drive the gear train into the mechanical stop will result in severe
damage to the actuator!
Remove power from this device before making any travel adjustments.
1.
After the actuator and valve (damper) assembly have been installed with power and control connected,
before
applying power,
use the handwheel to rotate the actuator to a mid-travel position.
2.
Be sure there are NO movement commands active, and apply 3 phase power.
a.
Actuator should NOT move
i.
If it does move,
IMMEDIATELY remove 3 phase power from the actuator to STOP movement.
ii.
Check control wiring to terminals 4-N on the actuator. Correct if necessary and repeat step2
3.
Generate a CW move command
and verify that the DIRECTION of the position indicator is CW.
a.
If it is, proceed to step 4.
b.
If it is NOT
, IMMEDIATELY remove 3 phase power from the actuator to STOP movement
.
c.
Check and correct external MCC control wiring if necessary.
d.
With 3 phase power removed, reverse any two of the three connections to terminals L1, L2, or L3 AT
THE ACTUATOR.
e.
Reapply 3 phase power and repeat step 3.
f.
During CW travel movement, depress the lever on the UPPER torque switch to interrupt actuator
movement as a check of the system.
4.
Generate a CCW move command
and verify the DIRECTION of the position indicator is CCW.
a.
If it is NOT
, IMMEDIATLEY remove 3 phase power from the actuator to STOP movement.
b.
Check and correct external MCC control wiring if necessary.
c.
During CCW travel movement, depress the lever on the LOWER torque switch to interrupt actuator
movement as a check of the system.
5.
If the actuator does NOT stop at the correct positions
, fails to move in the correct directions, or fails to stop
movement when the respective torque switch levers are depressed
, IMMEDIATELY STOP the operation of
