Basis Weight Actuator
21
Figure 17. Actuator/Valve Connection
Test Procedures
Required equipment for these procedures are an ex-
tender card (see the parts list) and volt–ohm–millime-
ter or similar voltage–measuring device.
Checking the SD13 Card
1. Remove the SD13 module (refer to the Replacing
Modules section).
2. Install the extender card in place of the SD13 mod-
ule. Plug the SD13 module into the extender card.
3. Install fuses. Use table 5 and the Driver Card sec-
tion.
4. Be sure that terminal 7 on terminal block TB2 is
connected to ground (GND––yellow–green) on TB2.
5. Check the ac voltages on the SD13 card. There
should be approximately 8 Vac between 12a and 12c
and approximately 8 Vac between 14a and 14c.
6. Also check the following voltages:
Voltage Between Should Be
16a and 12a 18 Vac
16a and 14a 18 Vac
16a and 12c 26 Vac
16a and 14c 26 Vac
Note
Contact your Fisher Controls sales of-
fice or sales representative if the mea-
sured voltages are not approximately the
values shown in steps 5 and 6.
7. Remove all power. Remove the extender card and
SD13 card. Re–install the SD13 module and correct
fuses.
Checking the IC500 Card
1. Remove the IC500 module (refer to the Replacing
Modules section).
2. Install the extender card in place of the IC500 mod-
ule. Plug the IC500 module into the extender card.
3. Check the dc voltage between 8c (PCOM) and 30a
(Ref.) at 2.7 A current limiting. (Be sure DIP switch 4
on the SD13 card is ‘‘on.’’ See the Settings section.)
4. Voltage between 8c and 30a should be 0.75 Vdc
with the motor not running and 1.50 Vdc with the motor
running.
5. Contact your Fisher Controls sales office or sales
representative if the measured voltages are not
approximately the values shown above.
6. Remove all power. Remove the extender card and
IC500 card. Re–install IC500 module.
Valve Maintenance
Refer to the appropriate valve body instruction manual
for information on valve maintenance. If it is necessary
to remove the actuator from the valve, refer to the Re-
moving the Actuator instructions below.
Removing the Actuator
1. Remove alternating current power at the external
circuit breaker box. If necessary, disconnect conduit
connections and disconnect wiring from the actuator.
Then, proceed as follows.
2. Due to the need to determine the closed position of
the valve before re–connecting the actuator and valve,
remove the valve and attached actuator from the pipe-
line.
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