SyriXus Series Pumps Installation and Operation Guide
Section 9 Pump Maintenance, Troubleshooting, and Servicing
9-6
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Figure 9-3
Optical sensor, interrupted by flag (bottom sensor shown,
rear tower cover plate removed)
Select the pump to be tested (A, B, or C).
Press
UP
100 (
A
) or
DOWN
100 (
B
) to move the piston up or down 100
counts. The tach counter value will increase or decrease by 100 counts,
accordingly. When the ball nut assembly reaches the top or bottom of
the tower, the corresponding limit will change from 0 to 1. If the cyl-
inder was refilled using the REFILL button, it may require multiple
presses of the ‘UP 100’ softkey before the ‘Lower limit’ indicator
changes to 0. When the Lower limit indicator is 1, pressing the DOWN
100 softkey will have no effect. Similarly, when the Upper limit is 1,
pressing the Up 100 softkey (B) will have no effect.
If the rear tower cover plate is removed to expose the sensors, as
shown above in Figure 9-3, you can simply interrupt the sensors with
a slip of paper, rather than using the flag.
If either sensor fails, the sensor harness must be replaced.
Press
EXIT
(
D
) to return to the diagnostic menu.
Flag
Sensor
TRAVEL LIMIT SENSE AND MOTOR POSITION
Upper limit = 0 Lower limit = 0
Tach counter = ###########
UP 100 DOWN 100
Exit
