Troubleshooting - Agilent Technologies TwisTorr 305 FS User Manual

Instructions for Use

Troubleshooting

For a certain type of failure, the controller will self-diagnose the error and the
messages described in the following table are displayed.
Table 7 Error Messages
Message
RUN UP TIME
CHECK CONNECTION
TO PUMP
WAITING INTERLOCK
PUMP OVERTEMP.
CONTROLLER OVERTEMP.
TOO HIGH L0AD
SHORT CIRCUIT
Agilent TwisTorr 305 FS Remote Controller User Manual
Description
The pump has not been able to reach a
speed value >700 Hz, within the expected
value (Run Up Time, which is configurable).
Wrong connection between the pump and
the controller.
Or
The pump's temperature is below 0 °C.
The interlock signal of P1 connector is
activated by an interruption of the link
between pin 3 and 8 of J1 connector, or
because the external interlock signal is
open.
The temperature of the pump body has
exceeded the maximum upper limit allowed,
dependent on the type of gas selected
(Ar: 50°C; N2: 55°C; He: 60°C).
The controller environment temperature
exceeds 70 °C.
Or
The controller's radiator temperature is
above 60 °C.
The current drawn by the pump is higher
than programmed.
After the starting phase the output
connection is shorted.
Repair Action
Check for the Run UP Time set-up: it should
be set accordingly to the customer
process. Check for the gas load flowing
inside the pump and adjust it accordingly.
Check connection between controller and
pump.
Press the START push-button twice to start
the pump.
Reset the short circuit between pin 3 and
pin 8 of P1 connector, or close the external
interlock signal.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice to start
the pump.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice to start
the pump.
Check that the pump rotor is free to rotate.
Press the START push-button twice to start
the pump.
Check connections and shortages between
pump and controller. Press the START
push-button twice to start the pump.
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