Flowserve Worcester Controls Electri-SAFE DataFlo - Manual (Page 5)

FCD WCAIM2048-01 Electri-SAFE DataFlo Digital Electronic Positioner 5
Flow Control
Worcester Controls
NOTE: Be very careful when adjusting the switch. It can be
damaged by the actuator switch probe if the switch is
adjusted (tightened) too far in toward the probe. If in doubt of
switch position, loosen (back out) the switch adjustment
screw to its loose limit before performing the following steps.
If not already done, remove the actuator and positioner
housing covers.
When power is first applied, the unit will be in the Run Mode.
The positioner display should be flashing between POS and a
number between 0 and 100.
On the positioner board, simultaneously press the SEL and
UP keys for three seconds to enter the Manual Mode. The
display should alternate between POS and 0.0.
Press and hold the UP key until the actuator goes full CCW
and stops moving. The actuator should be full CCW, and there
should be no motor noise.
If the motor continues to run, turn the limit switch adjustment
screw clockwise until the motor stops running. Turn the
adjustment screw clockwise an additional
1 /
4
turn to set the
switch. Verify the switch setting as follows:
Press the DN key to rotate the actuator shaft about 20
degrees CW.
Turn the limit switch adjusting screw counterclockwise 1 /
2
turn.
Press and hold the UP key until the actuator shaft rotates
to full CCW and stops moving.
If the actuator is not at full-open:
Press the DN key to rotate the actuator shaft about 20
degrees CW.
Turn the limit switch adjusting screw counterclockwise 1 /
2
turn.
Press and hold the UP key until the actuator shaft rotates
to full CCW and stops moving.
Repeat until the actuator is full-open and there is no
motor noise.
The actuator shaft must travel a couple of degrees beyond the
90 degree full CCW position for the positioner to control the
full range of operation. Place a straight edge along the flats
on the positioner shaft to verify that the actuator has gone
past the 90 degree position when stopped by the limit switch.
To return to the RUN mode, press and hold the SEL key for
three to five seconds.
4.2.2 Calibration Procedures for Positioner
NOTE: Also refer to section 4.6 for step-by-step procedures.
When power is first applied, the unit will be in the Run Mode.
The display should be flashing between POS and a number
between 0 and 100.
Simultaneously press and hold the SEL and DN switches
(keys) for three seconds to enter the calibration mode. When
first entering the Calibration Mode, CAL will be displayed for
two seconds and the security code will be checked. If the
required security code is not zero (“0000”), the display will
begin alternating between codE and 0000. Enter the security
code as described in paragraph 4.4.1 and per paragraph
4.3.6. If the required security code is zero, it will not need to
be entered by the user, i.e., it will be bypassed and the display
will automatically flash SEtL, and you can skip to paragraph b.
Note: If the security code is forgotten, the special number
4800 can be used to gain entry. However, this number will
now be the new security code and if another code number is
still desired, it will have to be reprogrammed.
If and after a security code has been entered, press and
release SEL to accept code. The display will now flash SEtL
and a value.
Simultaneously press and release the SEL and UP keys, then
adjust input signal to lower input value, e.g., 4 mA. Press and
release SEL to lock in value.
Press and release the DN key, the display will now flash SEtU
and a value. Simultaneously press and release SEL and UP,
then adjust input signal to higher input value, e.g., 20 mA .
Press and release SEL to lock in value.
Press and release DN, the display will now flash PoC and a
number between 0.0 and 5.0. Simultaneously press and
release SEL and UP. Rotate the actuator to the full CW
position by pressing and holding the DN key. Release the DN
key when full rotation has been achieved.
Important: Be careful not to go past the CW “0” degree
position. (Position a straight edge along the flats on the
positioner shaft to verify the shaft position). The display
should read between .200 and .400. If not: rotate the face gear
located on the positioner shaft (that drives the potentiometer)
until you read between .200 and .400. The gear is held in place
by means of a friction lock and a snap ring. No tools are
needed nor is it necessary to loosen or remove the snap ring
to move the gear. Steady gentle finger pressure will move the
gear to allow you to adjust the feedback potentiometer. Press
and release SEL to lock in the value.
Press and release the DN key, the display will now flash PoCC
and the feedback voltage value. Simultaneously press and
release SEL and UP. Adjust so shaft is full CCW using the UP
key (do not go past 90 degrees). Press and release SEL to
lock in value.
Press and release the DN key, the display will now flash Cyt
and a cycle time reading. Simultaneously press and release
the SEL and UP keys. At this time the actuator will perform
one cycle to measure its cycle time displaying PoC as the
actuator travels to the full CW position and PoCC for the
CCW position.
To return to the RUN mode, press and hold the SEL key for
three to five seconds.