Installation - Honeywell U2-S User Manual

PF version
General
FM, CSA, CE (EN298), and EAC
Hazardous Location
CSA
CLASS I, DIVISION 1, GROUPS A, B, C, D
CLASS II, DIVISION 1, GROUPS E, F, G
CLASS III DIVISION 1 T6
Ex d IIC T6 Gb Ex tb IIIC T85°C Db
CLASS I, ZONE 1, AEx d IIC T6 Gb
ZONE 21 AEx tb IIIC T85°C Db
IECEx SIR 15.0068X Ex db IIC T6 Gb
Ex tb IIIC T85°C Db IP66
SIRA 15ATEX1192X Ex db IIC T6 Gb
Ex tb IIIC T85°C Db IP66
!
CAUTION
CAUTION
Possible Equipment Damage
The aluminum surface of the U2 may store an
electrostatic charge and become a source of
ignition in applications with a low (<30%) relative
humidity. Cleaning the surface should only be
done with a damp cloth.
!
CAUTION
CAUTION
Do not expose to acetone, gasoline, hexane, or
ethyl acetate. label is not approved for these
chemicals.
Wiring
See "Typical Installation Diagram." on page 12.
Non-PF/
Color Function
1-Red Power Supply +24 VDC
Connect to 22-26 VDC
2-Purple File Select Input, 0 or 1
3-Orange mA output (+)
4-Blue mA output (-)
5-Black Power Supply Return (-) or 0 VDC
6-Yellow Flame Relay (NO)
(power in)
7-Green Fault Relay (NO) (fault output)
8-Grey Flame Relay (NO) (safety output)
U2-S MODEL COMBINATION VIEWING HEAD AND SIGNAL PROCESSOR
Non-PF/
9-Tan
10-White
11-Drain
12-Brown
*Note - pink wire unused, leave unconnected.
NOTES:

INSTALLATION

BELGIUM
Maxon International BVBA
Luchthavenlaan 16-18
1800 Vilvoorde, Belgium
Connection
Tel: 32.2.255.09.09
Fax: 32.2.251.82.41
To power supply
positive terminal
See "Typical Installation Diagram." on page 12.
To control output. >21V
input = file 1,
Installation should be carried out by a qualified engineer
<16V = active file
and should meet all local standards and safety
defined at Modbus
requirements.
register 40093(default
0).
Hazardous location installations require the use of
To current meter
ITC/CIC approved cable installed in cable tray for non-PF
positive
models, and in metal conduit for -PF models. The cable
installation must conform to the latest revision of the
To current meter
negative National Electrical Code, or Canadian Electrical Code for
Class I, Division 2 (non-PF models), or for Class I, Division
To Power Supply
1 (-PF models).
negative terminal.
To flame/fault relay
power source
To fault monitoring of
burner control system
To burner control
system
Non-PF models must be secured as follows: hand-tighten
the connector at viewing head until it can be turned no
more. Continue tightening the connector an additional
180 degrees using pliers, or similar tool. Verify that
connector cannot be loosened by hand.
3
Color Function
File Select Output, 0 or +24V
output. Feedback for system
controlling file input select.
+RS485 Modbus
Cable Overall Shield
-RS485 Modbus
!
CAUTION
CAUTION
Check wiring before applying power to the
system to make sure it is in accordance with the
wiring chart. Incorrect wiring may result in
unsafe operation or damage to U2.
1. For remote configuration and monitoring, refer
to Honeywell manuals for FlameTool for PC
(32-00001-01) and HMI S7999 Panel (32-
00003-01).
2. A total of eight parameter files are available.
Files 2 through 7 may be accessed using Fla-
metools, and configured using Modbus regis-
ter 40093.
WARNING WARNING
WARNING
Approved CLI, DIV1 conduit seal must be
installed at PF model enclosure fitting for CLI,
DIV1 hazardous location use.
Connection
To burner control
system. 0V = File Select
Input is low, or +24V if
FileSelect Input is high.
To Modbus +
To Earth Ground
To Modbus -
32-00015—05