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Johnson Controls
Metasys N2
Communications
Interface
Technical Manual
HA470901 Issue 1
Compatible with Version 1.x Software
Copyright Eurotherm Drives Limited 2003
All rights strictly reserved. No part of this document may be stored in a retrieval system, or transmitted in any form or
by any means to persons not employed by a Eurotherm Drives company without written permission from Eurotherm
Drives Ltd.
Although every effort has been taken to ensure the accuracy of this document it may be necessary, without notice, to
make amendments or correct omissions. Eurotherm Drives cannot accept responsibility for damage, injury, or expenses
resulting therefrom.
E U R O T H E R M
D R I V E S
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Table of Contents
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Summary of Contents for Eurotherm Drives Metasys N2
- Page 1 All rights strictly reserved. No part of this document may be stored in a retrieval system, or transmitted in any form or by any means to persons not employed by a Eurotherm Drives company without written permission from Eurotherm Drives Ltd.
- Page 2 Eurotherm Drives warrants the goods against defects in design, materials and workmanship for the period of 12 months from the date of delivery on the terms detailed in Eurotherm Drives Standard Conditions of Sale IA058393C. Eurotherm Drives reserves the right to change the content and product specification without notice. Cont.2...
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Page 3: Table Of Contents
This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com Contents Contents Page N2 T OHNSON ONTROLS ECHNOLOGY PTION A System Overview................... 1 Protocol ........................1 Product Features ......................1 Size Notation – Part Numbers..................1 Installation ....................... 2 JOHNSON CONTROLS N2 Communication Module (HVAC10)........2 •... - Page 4 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com...
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Page 5: Johnson Controls N2 Technology
• Protocol tag access for defined N2 parameters Size Notation – Part Numbers Size 1 HVAC10 drives use the 6053-JMET Metasys N2 Technology Box. All Size 2 and 3 HVAC10 drives use the 6055-JMET Metasys N2 Technology Box. Johnson Controls Metasys N2 Communications Interface... -
Page 6: Installation
Daisy chain one drive to the next. The supervisor should be at one end of the run. Avoid spurs. Earthing/Grounding Connect the screens of both pairs of wires to ground at the supervisor. If possible, connect the supervisor’s transmitter/receiver 0V reference to earth. Connect all screens as shown in the following diagrams. Johnson Controls Metasys N2 Communications Interface... -
Page 7: User Connections To The Main Serial Port (N2)
100 to 165 Ohms. Terminal Block (TB1) Connections Terminal No. Terminal No. 2-Wire Designation 2-Wire Designation Terminal No. Terminal No. 2-Wire Designation 2-Wire Designation Not used Not used Cable Screen Johnson Controls Metasys N2 Communications Interface... -
Page 8: Fitting And Connecting To The Technology Box
Option. On the SIZE 1 unit it will protrude slightly above the standard plastic enclosure. • Make all user wiring connections. Refer to the Wiring Diagrams. • Re-fit the terminal cover securely with the screws. Johnson Controls Metasys N2 Communications Interface... -
Page 9: Wiring Diagrams
Figure 3 2-Wire Wiring Diagram for the HVAC10 Size 2 & 3 Drive DRIVE DRIVE (slave) (slave) last inverter in chain Network Control Module (master) 0V SCR N2- N2+ 0V SCR N2- N2+ Figure 4 2-Wire Wiring Diagram for the HVAC10 Size 1 Drive Johnson Controls Metasys N2 Communications Interface... -
Page 10: Initial Check For Connection
FAULT Parameter Indication Description Description SELF TEST Initialising SHORT FLASH HARDWARE Hardware fault FLASH TYPE MISMATCH Wrong type or disabled LONG FLASH PARAMETER Set-up fault, parameter values out-of-range NONE Valid set-up, ready for external communications Johnson Controls Metasys N2 Communications Interface... - Page 11 SOFT TIMEOUT: Drive not addressed in the last 10 seconds. OK: Device has been addressed. Note: The NETWORK LED can only be in the ON state when the MODULE LED is ON continuously, indicating that the Option is ready for external communications. Johnson Controls Metasys N2 Communications Interface...
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Page 12: Initial Set-Up For Johnson Controls N2
Using the Operator Station (MMI) or other suitable PC programming tool, the TEC OPTION MMI Menu Map function block requires configuring before the Metasys N2 option can be used. Non-specific MMI view The parameter names/functions in the TEC OPTION function block are inter-dependant and will 1 SETUP change with different parameter values and the various Technology Options that can be fitted. - Page 13 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com PROTOCOL Range: Enumerated - see below Select to use the METASYS N2 protocol. Enumerated Value : Protocol 0 : EI ASCII 1 : EI BINARY 2 : MODBUS RTU...
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Page 14: Troubleshooting
Check power for all equipment on the network, e.g. RS232 to RS485 converter or repeater. SOFT TIMEOUT: Check the Network Control Module program is Drive not addressed in the last 10 running. seconds. Johnson Controls Metasys N2 Communications Interface... -
Page 15: Metasys Point List
0 to 150 SECS Accel Time 1 0 to 3000 SECS Decel Time 1 0 to 3000 SECS Stop Decel T 0 to 600 SECS Fast Decel T 0 to 30 Reference SP -300.0 to 300.0 Johnson Controls Metasys N2 Communications Interface... - Page 16 0 = FALSE, 1 = TRUE S/W Spd Sel 0 = H/W, 1 = S/W Preset Sel 0 = MAIN, 1 = PRESET Reset Fault 0 = OK, 1 = RESET AR Enable 0 = FALSE, 1 = TRUE Johnson Controls Metasys N2 Communications Interface...
- Page 17 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com ISS. MODIFICATION ECN No. DATE DRAWN CHK'D First release of HA470901. 16656 16/04/03 FIRST USED ON MODIFICATION RECORD Johnson Controls Metasys N2 Communications Interface DRAWING NUMBER SHT. 1 EUROTHERM DRIVES ZZ470901 OF 1...
- Page 18 This manual was downloaded on www.sdsdrives.com +44 (0)117 938 1800 - info@sdsdrives.com...
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