SHPF3 SCR Power Controller
Operation
Rev 2
Ametek HDR Power Systems
13
Figure 4.3 Remote Control with a Potentiometer
b. If Option CR or PR is installed, set the 10-turn CUR/PWR potentiometer to its mid-point.
c. Connect a voltmeter across terminals X1 and X2 of the SHPF3. Set the voltmeter range to
measure the full output voltage.
d. Set
the
SPAN
control and remote potentiometer fully CCW.
e. Close the fused disconnect or circuit breaker to apply power to the SHPF3. The unit should be
energized, with no output.
f. Adjust
the
ZERO
control CW until the output just turns on, then turn the
ZERO
control CCW just to
the point where the output voltage reading is zero.
g. Set
the
SPAN
control and remote potentiometer fully CW. The output should be full-on.
h. Observe the voltmeter and slowly adjust the
SPAN
control CCW, just to the point where the output
voltage reading is at maximum.
i. If
necessary,
readjust
ZERO
with remote potentiometer fully CCW and
SPAN
control and remote
potentiometer fully CW.
j. Turn off the line power to the SHPF3 and disconnect the test equipment.
k. If Option CR or PR is installed, adjust the
CUR/PWR
potentiometer CW until the output is limited
to the desired level.
4.5
Auto/Manual Control with a Controller and Remote Potentiometer
On closed loop processes it may be desirable to be able to operate the unit manually. The SCR Power
Controller has this capability designed into it. Connect the Command Signal, a Remote Manual control
and an Auto/Manual switch in the Auto position. By switching to the Manual position, the Remote
Manual control operates and the auto signal is disconnected.
With the power to the SHPF3 turned off, connect the switch, potentiometer, and controller as shown in
Figure 4.4 and remove jumper from terminal TB1-7 and TB1-8. Install the
AUTO/MAN
switch in the
same general location as the remote manual potentiometer. Note that the full CW position of the
potentiometer is the full-power-output position.
Содержание SHPF3 Series
Страница 6: ...Table of Contents SHPF3 SCR Power Controller iv Ametek HDR Power Systems Rev 2...
Страница 8: ...Safety Instructions SHPF3 SCR Power Controller 2 Ametek HDR Power Systems Rev 2...
Страница 22: ...Operation SHPF3 SCR Power Controller 16 Ametek HDR Power Systems Rev 2...
Страница 36: ...Appendix SHPF3 SCR Power Controller 30 Ametek HDR Power Systems Rev 2 Appendix B 15 and 25 A Outline R...
Страница 37: ...SHPF3 SCR Power Controller Appendix Rev 2 Ametek HDR Power Systems 31 Appendix C 60 225 A Outline R...
Страница 39: ...Notes...
Страница 40: ...503 Lakeview Plaza Blvd Ste C Worthington Ohio 43085 USA...
