Agilent Technologies TwisTorr 74 FS PCB 24 Mode D'emploi page 200

17 Technical Information
Operation
Low Speed Activation/Deactivation
To activate the Low Speed it is necessary to connect pin 13 of J4
connector to pin 15 (ground) of the same connector.
To deactivate the Low Speed status it is necessary to disconnect pin
13 of J4 connector from pin 15 (ground) of the same connector.
The low speed status is available on pin 5 of the same connector.
The low speed frequency is 1100 Hz.
Error reset
If the controller identifies an error, the pump is switched off. To start
again the pump the error cause has been removed and the error
status has to be reset connecting pin 11 of J4 connector to pin 15
(ground) of the same connector for at least 1 second.
200/209 TwisTorr 74 FS PCB 24 Vdc Controller User Manual / 87-901-056-01