Instruction Manual
Basis Weight Actuator
19
Figure 15. Control Connection Schematic without Remote Station and without Manual Station
WITH THIS CONNECTION TO COMPUTER THE ACTUATOR
CAN ONLY RUN WITH SLOW SPEED.
CR1=INCREASE
CR2=DECREASE
NOTE:
IF THE MANUAL STATION IS INSTALLED, CONTROL CONFLICTS MAY OCCUR, SEE WIRING SECTION.
E0021 / IL
5. Check the meter again at 0 degrees rotation to be
sure zero has not changed.
Maintenance
WARNING
Avoid personal injury from sudden re-
lease of process pressure. Before per-
forming any maintenance operations:
D Shut off any line providing, electri-
cal power or a control signal to the ac-
tuator and Stepmotor Interface. Be sure
the actuator cannot suddenly open the
valve.
D Use bypass valves or completely
shut off the process to isolate the valve
from process pressure. Relieve process
pressure on both sides of the valve.
Drain the process media from both sides
of the valve.
D Keep power off when working in the
Stepmotor Interface.
A brief troubleshooting guide is provided below. Fol-
lowing the troubleshooting guide are maintenance pro-
cedures that can be completed in the field. For other
maintenance, return the actuator to Fisher Controls.
Due to the care Fisher Controls takes in meeting all
manufacturing requirements (heat treating, dimension-
al tolerances, etc.), use only replacement parts sup-
plied by Fisher Controls.