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Page 87
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operation
A533-23-880 Issue C
5.11
Emergency stop
Notes:
The emergency stop switch is not an electrical isolator.
The use of emergency stop will not automatically shut down the load lock pump (if fitted); you must shut
down the load lock pump separately.
To shut down the iF system in an emergency, press the emergency stop switch (Figure 6, item 1) on the dashboard.
Alternatively, you can operate the emergency stop controls in your own control system if you have connected your
emergency stop circuit to the iF system as described in Section 3.14.
When emergency stop is selected:
The FDP pump (and the HMB pump, on iF1800 systems) is switched off.
The solenoid-valve(s) in the Gas Module close, to switch off the supply of nitrogen to the FDP pump.
The Pump Display Terminal will display 'STOP ACTIVATED'.
The LED on the On button on the Pump Display Terminal (Figure 7, item 1) will go off.
5.12
Restart the HMB pump after automatic pump shut-down
If the HMB pump has been automatically shut down due to an alarm (refer to Section 5.10), use the Switch On/Booster
Pump menu to restart the HMB pump after the alarm condition has cleared.
5.13
Restart the iF system after an emergency stop or automatic
shut-down
Note:
If the iF system has automatically shut down because of high FDP pump power (alarms 412 and 512), check
that the FDP pump is free to rotate before you restart the iF system.
If you have used the emergency stop switch on the dashboard to shut down the iF system, you must reset the
emergency stop switch before you can restart the iF system. Turn the emergency stop switch to reset it, then restart
the iF system as described in Section 5.5. Note that the 'STOP ACTIVATED' alarm message (refer to Table 19) will stay
on the Pump Display Terminal until you restart the pumping system.
If the iF system has been automatically shut down because of an alarm condition, the alarm condition must be
rectified before you can restart the iF system. For example, if the iF system has been shut down because the FDP
pump-body is too hot, the pump-body must be allowed to cool before you can restart the iF system. Restart the iF
system as described in Section 5.5.
WARNING
If a pump is automatically shut-down, ensure that it is safe to restart before restarting the pump.
WARNING
If a pump is automatically shut-down, ensure that it is safe to restart before restarting the pump.
