Models S 1200, S 2400, S 4400, POU 3300, POU 3500
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24
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6.2.
Troubleshooting
Problem
Possible Cause
Possible Solution
Controller does not turn
on when the power switch
is on
1.
Power for facility is not
correct or missing.
2.
The EMO button is pressed
in.
3.
EMO IN jumper is not
connected.
4.
EMO OUT jumper is not
connected.
1.
Check the voltages at the
power receptacle. The phase
voltages should be about 208
VAC.
2.
Turn the EMO button
clockwise to end EMO
condition.
3.
If the EMO IN input is not
used, it must be jumpered.
Connector is a 9-pin D-
subminiature connector
labeled
EMO IN
on the back of
the controller. Connector is
supplied with the unit.
4.
If the EMO OUT input is not
used, it must be jumpered.
Connector is a 9-pin D-
subminiature connector
labeled
EMO OUT
on the back
of the controller. Connector is
supplied with the unit.
Process temperature
fluctuates
1.
PID parameters are not
properly tuned for the
process.
2.
Controller software needs
to be reset.
1.
Adjust the heating and cooling
PID parameters.
2.
Perform this step only when
tool is not processing.
a.
Record all process
parameters, since this
step will reset the
controller to its default
state.
b.
Turn controller off with
power switch.
c.
While holding down “NO”
key, turn controller on
with power switch.
d.
Reprogram controller.
Process fluid cannot be
pumped into the reservoir
1.
Fill valve is not completely
open.
2.
Fill canister is faulty
1.
Follow the procedure “Filling
the Reservoir” for filling the
reservoir.
2.
Use another fill canister.
