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IQ251 Installation Instructions TG103483 Issue 4, 09-May-2012 1

Installation Instructions

IQ251

Controller

Important: Retain these instructions

These instructions shall be used by trained service personnel only

If the equipment is used in a manner not specified by these instructions, the protection provided by the equipment may be impaired.

1

Dimensions

2

Mounting Requirements

3 InsTallaTIon
3.1  Installation - Mounting

1 UnpaCkIng

2 sToRIng

It is recommended that the installation should comply 

with the local electrical safety installation practices (e.g. 

HSE Memorandum of Guidance on Electricity at Work 

Regulations 1989, USA National Electric Code).

ConTenTs

Unpacking .....................................................................

1

Storing ...........................................................................

1

3 Installation

 .....................................................................

1

3.1 

Installation - Mounting ...................................................

1

3.2  

Installation - Configuration ............................................

7

4  

Mounting in an Enclosure, ENCLS/.............................

12

5  

Connecting to PC using Supervisor Port ....................

12

6  

Replacing the Battery ..................................................

13

7  

Zero Address/Baud Rate Switch Reset ......................

15

8  

Replacing the Fuse .....................................................

16

IQ251 

Installation Instructions, 

TG103483

/230  

only

/EIN/, /EAO/, 

or /EDO/

(option)

PART/LA102359K

(option)

/24VAC,

/24VDC only

H O

2

+50 °C

(122 °F)

0

-10 °C

(14 °F)

90 %RH

IQ

251

30 mm (2”)

30 mm (2”)

550 mm (21.7”)

175 mm (6.9”)

44

0 m

m (

17

.3

2”

)

a

IQ

251

IQ

251

b

e

IQ

251

IQ

251

The unit must be installed 

in an enclosure rated to 

IP20 or equivalent.

!

IQ

251

d

0 °C

(32 °F)

+45 °C 

(113 °F)

0 %RH

90 %RH

H O

2

c

altitude:

  <2000m (6562 ft)

Summary of Contents for IQ251

Page 1: ...HSE Memorandum of Guidance on Electricity at Work Regulations 1989 USA National Electric Code Contents 1 Unpacking 1 2 Storing 1 3 Installation 1 3 1 Installation Mounting 1 3 2 Installation Configura...

Page 2: ...mm 0 31 a a If mounting on b Insert rawl plugs b Tap holes e f No 12 wood screws IQ251 IQ251 IQ251 4 holes 8 mm 0 31 4 holes 8 mm 0 31 b M6 screws and nuts Tap 4 M6 holes 510 mm 20 08 415 mm 16 34 d...

Page 3: ...section if required b Select Modules EIN 8 Analog 8 Digital input channels EAO 8 Analog output channels EDO 8 Digital relay output channels c Locate positions IQ251 v1 2 IQ251 v1 2 or greater snap off...

Page 4: ...1 to AI8 Current Input externally powered IL IX T V EIN module earthing grounding bar option Analogue Output Channels AO1 to AO8 EAO module earthing grounding bar option OUT C Earthing grounding bar A...

Page 5: ...dedicated 5A fuse complying with BS1362 and a suitably rated switch in close proximity and be clearly marked as the disconnecting device for the unit A 5A circuit breaker with high breaking capacity m...

Page 6: ...14 AWG 2 wire Cable 1k2 baud 9k6 baud 19k2 baud No of Wires Belden 9182 1000 m 1090 yds 1000 m 1090 yds 700 m 765 yds 2 Belden 9207 1000 m 1090 yds 1000 m 1090 yds 500 m 545 yds 2 IQ system TP 1 1 22...

Page 7: ...WARNING The connecting leads may be connected to supplies Isolate before touching WARNING Opening the panel may expose dangerous voltages IQ251 WARNING The connecting leads may be connected to supplie...

Page 8: ...Output Links 3 2 Installation Configuration continued IL IX T V Current loop powered Current external powered Thermistor Voltage EIN module EDO module Warning These terminals may be connected to hazar...

Page 9: ...ut power IQ Faulty IQ251 RX TX c I O red IQ Faulty IQ Faulty IQ251 RX TX IQ Faulty Check baud rate Check network cabling for short circuits with a multimeter NOT Megger LAN LAN IQ251 Power up other no...

Page 10: ...51 RX TX IQ Configuration Manual 90 1533 IQ251 Data Sheet TA102315 SET Manual TE200147 OR 9 Way D type Female Cable EJ101442 RJ11 SET IQ251 X IQ2 Also set time day date SUPERVISOR T X a b c d Switch o...

Page 11: ...ch off Switch on Set digital output links see step 8 to check HVAC equipment wiring if required O I IQ251 IQ251 IQ251 e g e g e Check auto action EDO yellow if EDO fitted SET Manual TE200147 SET compa...

Page 12: ...ce Backplate 1 Connect RS232 2 Configure Address 4 Mounting in a Enclosure ENCLS 5 Connecting to PC using Supervisor Port 560 mm 22 04 560 mm 22 04 tighten 4 screws b a b a c OR No 12 IQ251 RX TX 9 Wa...

Page 13: ...pe Female CABLE EJ101442 RJ11 SUPERVISOR IQ251 WARNING Opening the panel may expose dangerous voltages IQ251 ADDRESS ON RX TX O I WARNING The connecting leads may be connected to supplies Isolate befo...

Page 14: ...s IQ251 SET Manual TE200147 OR 9 Way D type Female CABLE EJ101442 IQ251 X IQ2 SET If not IQ2v3 IQ2v3 will reset RAM automatically Switch off Complete Zero Address Baud Rate Switch Reset section 7 step...

Page 15: ...ys 8 Download Strategy Close Panel Reconnect Power to I O 7 Zero Address Baud Rate Switch Reset IQ251 RX TX IQ251 RX TX IQ251 RX TX Complete Replacing the Battery section 6 steps 1 to 4 IQ251 RX TX 19...

Page 16: ...otify any person of such revisions or changes Trend Control Systems Limited Albery House Springfield Road Horsham West Sussex RH12 2PQ UK Tel 44 0 1403 211888 Fax 44 0 1403 241608 www trendcontrols co...

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