Edwards IH Instruction Manual - Ideal Vacuum Products
Edwards IH Instruction Manual - Ideal Vacuum Products
Edwards IH Instruction Manual - Ideal Vacuum Products
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5.10 <strong>Manual</strong> shut-down<br />
WARNING<br />
If you intend to do maintenance on the iH system after you have shut it down<br />
and you will not isolate the iH system from the electrical supply, do not<br />
disconnect the Pump Display Terminal or release control from the Pump<br />
Display Terminal (see Section 5.5). If you do, the iH system could be started<br />
by another Module.<br />
Notes:<br />
Press the Cancel button on the Pump Display Terminal to cancel a shut-down request. The purge<br />
time for the Auto shut-down option is preset to 15 minutes as supplied. This purge time can be<br />
configured for your application.<br />
Ensure that it is safe to shut down the iH system before you select shut-down.<br />
Use the Switch Off menu to shut down the iH system. Note that the menu has two<br />
shut-down options: Fast and Auto. We recommend that you use the Auto shut-down option.<br />
This ensures that the iH system is purged with nitrogen for 15 minutes before it is shut down.<br />
When you select Auto shut-down, the following actions will occur (with a small time delay<br />
between each action):<br />
• On an iH600 or iH1000 system, the HCMB pump is switched off.<br />
• The LED on the On button on the Pump Display Terminal (Figure 1-8, item 1) starts to flash.<br />
• If not already open, the gas solenoid-valves are opened to switch on the nitrogen purges to the<br />
iH system.<br />
• After 15 minutes, the gas solenoid-valves are closed to switch off the nitrogen purges to the<br />
HCDP pump, and at the same time the HCDP pump is switched off.<br />
• The LED on the On button on the Pump Display Terminal goes off.<br />
iH Dry Pumping Systems 5-9