Use the procedure below to shut down the pump:
1. If shutting the pump down prior to a period of storage, remove any1.
process gases by running on a gas ballast for at least one hour.
2. Close any vacuum system isolation valves to prevent suck-back into the2.
vacuum system (where installed).
3. For the 1-phase pump; stop the pump system using the appropriate3.
control source, that is, using the Stop button in manual control mode
r
efer to
; the Start/Stop control input in
parallel control mode or a Stop command in serial control mode.
For the 3-phase pump system; remove power by isolating the incoming
3-phase electrical supply.
4. Vent the pump system using the gas ballast control or the valve on the4.
inlet.
5. Isolate the Mains supply.5.
7.10Emergency Stop (EMS) (3-phase pump only)
CAUTION: PUMP DAMAGE
Risk of damage to the pump. The 3-phase pump is not tted with an emergency
stop. If an emergency stop function is required, then this product can be
connected into the user’s own Emergency Stop Control Circuit.
300668736_002_C7 - © Leybold 43
Operation
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