Edwards nXDS Series User Manual

A735-01-880 Issue C
Page 14 © Edwards Limited 2017. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Technical data
2.6 LED indicators
Figure 7 - LED indicators
The nXDS pump has eight indicator LED’s
Table 12 - LED indicators
LED Description Details
1 Power indicator Indicates that electrical mains supply to the pump is ON
2 Run indicator Indicates that the pump is running. Refer to Section 4.2.1.
3 Standby mode indicator
Indicates that the Standby mode has been selected. Refer to
Section 4.2.2.
4
Standby speed increase
indicator
The indicator will blink with every short push of the Standby speed
increase button. The indicator will remain ON when maximum standby
speed has been reached. Refer to Section 4.2.2.
5
Standby speed decrease
indicator
The indicator will blink with every short push of the Standby speed
decrease button. The indicator will remain ON when minimum standby
speed has been reached. Refer to Section 4.2.2.
6 Auto-run indicator
Indicates that the Auto-run mode has been selected. Refer to
Section 4.3.
7 Service indicator
Indicates that a service interval has been reached. Refer to
Section 5.10.
8 Alarm indicator Indicates an Alarm has been triggered. Refer to Section 5.11.6.

Edwards nXDS Series Specifications

General

Pump Type	Scroll Pump
Ultimate Vacuum	< 1 x 10-2 mbar
Motor Type	AC motor
Inlet Port	NW25
Outlet Port	NW25

Summary

Technical data

Operating and storage conditions

Specifies ambient temperature, humidity, and pollution limits for operation and storage.

Performance

Details the pumping speed, pressures, and chamber volume for nXDS models.

Mechanical data

Electrical data

Installation

Safety

Highlights critical safety instructions and precautions for pump installation.

System design considerations

Offers guidance on designing a safe and effective vacuum pumping system.

Connect to the vacuum system

Guides on connecting the pump to the vacuum system, including safety warnings.

Electrical installation

Covers essential electrical connection requirements, fuses, and circuit breakers.

Operation

Manual operation

Details how to start, stop, and control the pump using the user interface panel.

Start and stop

Instructions for initiating and ceasing pump operation via the interface buttons.

Parallel control and monitoring

Analogue speed control

Use of gas ballast control

Start up procedure

Step-by-step instructions for safely starting the nXDS pump system.

Shut down

Provides the procedure for safely shutting down the nXDS pump.

Maintenance

Safety information

Crucial safety warnings and precautions before performing any maintenance tasks.

Maintenance plan

Outlines scheduled maintenance tasks and their recommended frequencies.

Replace the tip-seals

Information on when and how to replace tip-seals to maintain pump performance.

Replace the pump bearings (service indicator)

Electrical safety check

Requirements for testing earth continuity and insulation resistance.

Fault finding

Provides troubleshooting steps for common pump issues and alarms.

The pump has failed to start or has stopped

Lists potential causes for pump failure to start or unexpected shutdown.

The pump has failed to achieve the required performance

Troubleshooting for pumps not meeting performance specifications.

The pump has poor ultimate vacuum

Flowchart and steps to diagnose and resolve poor ultimate vacuum issues.

Alarm indicator codes

Explains alarm indicator flashing sequences and error codes.

Storage and disposal