Table of Contents
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Description
nXDS6i
nXDS10i
nXDS15i
nXDS20i
nXDS6iC
nXDS10iC
nXDS15iC
nXDS20iC
nXDS6iR
nXDS10iR
nXDS15iR
nXDS20iR
Instruction Manual
nXDS Serial Comms Interface
A735-01-860
Issue A Original
Item Number
A735-01-983
A736-01-983
A737-01-983
A738-01-983
A735-02-983
A736-02-983
A737-02-983
A738-02-983
A735-03-983
A736-03-983
A737-03-983
A738-03-983
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Table of Contents
Related Manuals for Edwards nXDS6i
Summary of Contents for Edwards nXDS6i
- Page 1 A735-01-860 Issue A Original Instruction Manual nXDS Serial Comms Interface Description Item Number nXDS6i A735-01-983 nXDS10i A736-01-983 nXDS15i A737-01-983 nXDS20i A738-01-983 nXDS6iC A735-02-983 nXDS10iC A736-02-983 nXDS15iC A737-02-983 nXDS20iC A738-02-983 nXDS6iR A735-03-983 nXDS10iR A736-03-983 nXDS15iR A737-03-983 nXDS20iR A738-03-983...
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Page 3: Table Of Contents
Decoding system status word ..................16 3.9.2 Decoding service status word..................19 For return of equipment, complete the HS Forms at the end of this manual. © Edwards Limited 2012. All rights reserved. Page i Edwards and the Edwards logo are trademarks of Edwards Limited. - Page 4 Service flags ......................20 Associated publications Publication title Publication number Vacuum Pump and Vacuum System Safety P400-40-100 nXDS Scroll Pump Instruction Manual A735-01-880 Page ii © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
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Page 5: Introduction
Introduction Scope of this manual This manual provides operational instructions for the Edwards nXDS pump serial communication protocol. Read this manual before you attempt to operate your nXDS pump using serial communication protocol. For safety and operating information for the nXDS range of pumps, please refer to the nXDS Scroll Pump Instruction Manual (A735-01-880). -
Page 6: Nxds Scroll Pump
RS232 / RS485 control inputs. Figure 2 - nXDS scroll pump 1. User interface panel 2. 15-way logic interface connection Page 2 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 7: Technical Data
Connect to Pin 2 (0 V) to enable remote operation via Parallel control mode. NORMAL – Status output Logic LOW when the pump rotational speed is at normal speed or above. © Edwards Limited 2012. All rights reserved. Page 3 Edwards and the Edwards logo are trademarks of Edwards Limited. - Page 8 Unipolar output with diode protection Voltage accuracy ± 2% ≤ 5 mA for specified accuracy Output current Mating half of connector not supplied Page 4 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
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Page 9: Connection For Serial Control And Monitoring
Figure 3 - Logic interface connections - RS232 serial control 1. RS232 interface on control equipment or PC 2. nXDS pump logic interface © Edwards Limited 2012. All rights reserved. Page 5 Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 10: Serial Enable
If the nXDS pump receives an unrecognisable message between the start and stop characters, it will return an appropriate error message. Page 6 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 11: Message Structure
Table 5 shows the error codes that might be returned. © Edwards Limited 2012. All rights reserved. Page 7 Edwards and the Edwards logo are trademarks of Edwards Limited. - Page 12 !C retains value in volatile !C805 memory only Run the nXDS Pump-System ?S806 from power-on: Auto-run Decimal !S806 Enable = 1 Disable = 0 Page 8 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
- Page 13 01; <0000..FFFF>; Hexidecimal system status register 02; <0000..FFFF>; warning register 01 and fault <0000..FFFF>; register 01 <0000..FFFF> © Edwards Limited 2012. All rights reserved. Page 9 Edwards and the Edwards logo are trademarks of Edwards Limited.
- Page 14 ASCII (Dxxxxxxxx Y) ?S823 1..11] String boot-loader Characters (where Dxxxxxxxx is the version drawing number and Y is the revision) Page 10 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
- Page 15 Parameter out of range Invalid command in current state - e.g. serial command to start/stop when in par- allel control mode © Edwards Limited 2012. All rights reserved. Page 11 Edwards and the Edwards logo are trademarks of Edwards Limited.
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Page 16: Operating The Nxds Pump
The reply you receive will be in the following format: Reply On successful receipt of the stop command, the pump will decelerate to rest. Page 12 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 17: Multi-Drop Operation
Figure 5 - RS485 multi-drop connections 1. RS485 interface on control equipment or PC 2. nXDS pump logic interface © Edwards Limited 2012. All rights reserved. Page 13 Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 18: Assigning A Multi-Drop Address
The reply you receive will be as follows: Reply Once multi-drop mode is disabled, the pump will no longer respond to multi-drop commands. Page 14 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 19: Mixed Parallel And Serial Operation
/ stop switch on the parallel interface, you cannot then stop the pump by using the serial interface; you must stop the pump by using the start / stop switch on the parallel interface. © Edwards Limited 2012. All rights reserved. Page 15 Edwards and the Edwards logo are trademarks of Edwards Limited. -
Page 20: Decoding Status Words
Table 6 - Hexadecimal conversion table Hexadecimal Binary Decimal 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 Page 16 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited. - Page 21 ?V826 Reserved Warning Warning condition - See 'Warning register' for detail Alarm Fault condition - See 'Fault register' for detail © Edwards Limited 2012. All rights reserved. Page 17 Edwards and the Edwards logo are trademarks of Edwards Limited.
- Page 22 Pump-controller temperature is above the maximum measurable temperature value Reserved Reserved Reserved Reserved 15 (msb) Self test warning Non-critical problem with EEPROM or other internal function Page 18 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
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Page 23: Decoding Service Status Word
(starting with 0 for the least significant to 15 for the most significant) as shown in Section 3.9.1. The meaning of each bit in the service status word is given in Table © Edwards Limited 2012. All rights reserved. Page 19 Edwards and the Edwards logo are trademarks of Edwards Limited. - Page 24 Reserved Service due Service is due. Specific operation required should be determined by checking the bits above 8 - 15 Reserved Page 20 © Edwards Limited 2012. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.