© Edwards Limited 2018. All rights reserved.
Page 17
Operation
A732-01-880 Issue D
4.6
Remote operation using 15-way D connector
It is possible to operate the pump remotely using the 15-way D type connector fitted on the panel at the side of the
pump. (Refer to
).
The 15-way D connector is insulated to ensure that it remains protected in the event of a single fault condition.
The controls available are as follows:
Run/Standby
Boost
(Run pump at 116%) Intermittent use only (not for continuous operation)
Idle
(Run pump at 67%)
Run
(Runs pump at standard speed 100%)
OK Signal
shows which connections to make to enable these functions.
The Run/Standby switch (
, item 8) should be in the Standby position for remote operation. The idle and boost
modes are only available with remote operation.
To completely remove electrical power from the pump, the plug should be removed from the electrical connector
(
, item 6).
Note:
Boost operation is not recommended for the XDS100B as a permanent operation mode, as increased bearing
loads will reduce the life of the pump bearings. Please consult Edwards if the boost mode is intended to be
used.
4.7
Shut down
Use the following procedure to shut down the pump:
1. If shutting the pump down prior to a period of storage, remove any process gases by running on high flow gas-
ballast for at least one hour.
2. To prevent operation with excessive backing pressures it is recommended that the XDS100B is switched off
before the booster backing pump is turned off.
3. Close any vacuum system isolation valve to prevent suck-back into the vacuum system (where fitted).
4. Switch off the pump. (When the pump is switched off the fan will continue to run for 1 minute.)
5. Once the XDS100B has stopped the backing pump can be turned off.
6. Vent the XDS100B by the gas ballast control on the backing pump or via the valve on the inlet.
WARNING
When the pump has been switched off the fan will continue to run for 1 minute.
