Agilent Technologies TwisTorr 305 FS User Manual page 93

1. Automatic means that when the controller stops, the vent valve is opened
NOTES
with a delay defined by window n. 126; when the controller starts, the vent
valve is immediately closed.
2. On command means that the vent valve is opened or closed by means of
window n. 122.
3. Run Up Time is the maximum amount of time for which the pump is allowed
to spin at a speed value less than the normal operating speed. The pump is
not intended to spin for an indefinite time at a speed value lower than
700Hz. If the pump, due to the gas flow applied to it, spins at a speed value
less than 700Hz, the Run Up timer starts to count; when the counter value
exceeds the Run Up Time set value, the pump will stop and the error
condition "Run Up Time" will be issued by the control unit.
4. Select the gas type which is appropriate for the customer process in order to
achieve the full performance of the pump.
Figure 17
TwisTorr 305 FS onboard Controller User Manual / 87-901-060-01
RS 232/RS 485 communication description
7 6 5
TOO HIGH LOAD
SHORT CIRCUIT
OVERVOLTAGE
RUN UP TIME
Window N. 206 Bit Description
Technical Information
4 3 2 1 0
NO CONNECTION
PUMP OVERTEMP.
CONTROLL. OVERTEMP.
POWER FAIL
8
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