Edwards nEXT730D User Manual

Note:
This command o
verrides the current vent opon and closes the vent valve. There is no
open vent valve command but, when a stop command is sent to the pump, the override
is cleared.
7.4.2 Start the pump with serial control
CAUTION:
Do not opera
te the pump with its rotor exposed. Before operang the pump it must
rst be connected to the vacuum system. If the pump is operated with its rotor
exposed, the pump rotor can cause injury as it rotates at very high speeds and the
rotang blades might not be visible.
WARNING:
Do not mov
e the pump whilst it is running. The gyroscopic forces generated by this
movement can cause excessive use of the back-up bearing and may result in
catastrophic failure of the pump.
CAUTION:
When pow
er is restored following a power cut, the pump will restart automacally.
The pump must remain connected to the vacuum system to prevent risk of injury.
In serial control the pump will accelerate to full operang speed when started.
To start the pump, send the following command over the serial communicaons link
Command
! c 8 5 2 sp 1 cr
The reply will be in the following format:
Reply
* c 8 5 2 sp 1 cr
The green indicator LED will illuminate when the pump reaches normal speed. This is
80% of full rot
aonal speed by default but a dierent value may have been selected to
suit the applicaon.
7.4.3 Run the pump at standby speed with serial control
If the pump is running below or above standby speed it will accelerate or decelerate
unl standby speed is reached.
To run the nEXT pump at standby speed, send the following command over the serial
communicaons link:
Command
! c 8 6 9 sp 1 cr
The reply will be in the following format:
Reply
* c 8 6 9 sp r cr
To return the pump to full speed, send the following command:
08/2021 - ©Edwards Limited
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aon

Edwards nEXT730D Specifications

General

Brand	Edwards
Model	nEXT730D
Category	Water Pump
Language	English