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Side 6 | 14
4.1 USE OF LEDS
4. FRONT PANEL COMMANDS
CONTENTS
1. GENERAL WARNING 6
2. GENERAL DESCRIPTION 6
3. CONTROLLING LOADS 6
4. FRO NT PANEL COMMANDS 6
5. MAX & MIN TEMPERATURE MEMORIZATION 6
6. MAIN FUNCTIONS 6
7. PARAMETERS 7
8. DIGITAL INPUT (ENABLED W ITH P3P = N) 8
9. TTL SERIAL LINE FO R M O NITO RING SYSTEMS 8
10. X-REP OUTPUT OPTIONAL 8
11. IN S T A L L A T IO N A N D MOUNTING 8
12. ELECTRICAL CONNECTIONS 8
13. HOW TO USE THE HOT KEY 9
14. ALARM SIGNALS 9
15. TECHNICAL DATA 9
16. CONNECTIONS 9
17. FACTORY SETTINGS DIXELL XR30CH 10
1. GENERAL WARNING
This manual is part of the product and should be kept near the instrument for easy and
quick reference.
The instrum ent shall not be used for purposes different from those described hereunder.
It c a n n o t b e u s e d a s a s a fe ty device.
Check the application limits before proceeding.
Dixell Srl re s e rv e s th e rig h t to c h a n g e th e co m p o s itio n o f its p ro d u c ts , e v e n without
notice, ensuring the sam e and unchanged functionality.
: To display target set point; in program m ing m ode it selects a param eter or confirm
an operation.
(DEF) To start a m anual defrost
(UP): To see the m ax. stored tem perature; in p ro g ra m m in g m o d e it b ro w s e s th e
param eter codes or increases the displayed value.
(DOWN): To see the m in stored tem perature; in program m ing m ode it b ro w s e s th e
param eter codes or decreases the displayed value.
To switch the instrum ent off, if onF = oFF.
To switch the light, if oA1 = Lig
KEY COMBINATIONS:
To lo c k & u n lo c k th e keyboard.
To enter in program m ing m ode.
To re tu rn to the ro o m te m p e ra tu re d is p la y .
Check the supply voltage is correct before connecting the instrument.
Do not expose to water or moisture: use the controller only within the operating lim its
avoiding sudden tem perature changes w ith high atm ospheric hum idity to prevent
fo rm a tio n o f condensation
Warning: disconnect all electrical connections before any kind of maintenance.
Fit the probe where it is not accessible by the End User. The instrument must not be
opened.
In case of failure or faulty operation send the instrument back to the distributor or to
D ix e ll S .r.l. (se e a d d re s s ) w ith a d e ta ile d d e s crip tio n o f th e fault.
Consider the maximum current which can be applied to each relay (see Technical Data).
Ensure that the wires for probes, loads and the power supply are separated and fa r
enough from each other, without crossing or intertwining.
In c a s e o f a p p lic a tio n s in in d u s tria l e n v iro n m e n ts , th e u s e o f m a in s filters (our m od. FT1)
in p a ra lle l w ith in d u c tiv e lo a d s c o u ld b e useful.
2. GENERAL DESCRIPTION
Model XR30CH, fo rm a t 3 2 x 7 4 m m , is a d ig ita l th e rm o s ta t w ith o ff c y c le d e fro s t d e s ig n e d fo r
refrigeration applications at normal temperature. It provides two relay outputs, one for th e
com pressor, the other one can be used as light, for alarm signalling or as auxiliary output..
It is also provided with 2 NTC or PTC probe inputs, the first one for temperature control,
th e s e c o n d o n e , o p tio n a l, to c o n n e c t to th e H O T K E Y te rm in a ls to s ig n a l th e condenser
te m p e ra tu re a la rm o r to d is p la y a te m p e ra tu re . T h e d ig ita l in p u t c a n o p e ra te a s th ird
temperature probe.
The HO T KEY output allows to connect the unit, by m eans of the external m odule XJ485-CX,
to a n e tw o rk lin e ModBUS-RTU com patible such as the dIX E L monitoring units of X-WEB
fa m ily . It a llo w s to p ro g ra m th e c o n tro lle r b y m e a n s th e H O T K E Y p ro g ra m m in g keyboard.
The instrument is fully configurable through special parameters that can be easily
program m ed through the keyboard.
3. CONTROLLING LOADS
5. MAX & MIN TEMPERATURE MEMORIZATION .
1.
2. The Lo m essage will be displayed followed by the m inim um tem perature recorded.
3. By pressing the key again or by w aiting 5s the norm al display w ill be restored.
1.
2. The Hi m essage will be displayed follow ed by the m axim um temperature recorded.
3.
1. Hold press the SET key for more than 3s, while the max. or min temperature is
displayed. ( rS t m e s s a g e w ill b e displayed )
2. To confirm the operation the rS t message starts blinking and the normal te m p e ra tu re
will be displayed.
6. MAIN FUNCTIONS
LED
MODE
FUNCTION
ON Compressor enabled
Flashing Anti-short cycle delay enabled
ON Defrost enabled
ON An alarm is occurring
ON Continuous cycle is running
ON Energy saving enabled
ON Light on
ON Auxiliary relay on
°C /°F
ON Measurement unit
°C /°F
Flashing Programming phase
6.1 HOW TO SEE THE SETPOINT
1.2 SAFETY PRECAUTIONS
5.3 HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
5.2 HOW TO SEE THE MAX TEMPERATURE
5.1 HOW TO SEE THE MIN TEMPERATURE
1.1 PLEASE READ BEFORE USING THIS MANUAL
Digital controller with off cycle defrost and AUXrelay
XR30CH
3.1 COMPRESSOR
The regulation is perform ed
according to the te m p e ra tu re
measured by the thermostat probe
with a positive differential from the
set point: if the tem perature
increases and reaches set point
plus differential the com pressor is
started and then turned off w hen
th e te m p e ra tu re re a c h e s th e s e t
point value again.
In c a s e o f fa u lt in th e th e rm o s ta t p ro b e th e s ta rt a n d s to p o f th e c o m p re s s o r a re tim e d
th ro u g h
param eters COn a n d COF.Defrost
Defrost is performed through a simple stop of the compressor. Parameter IdF controls
th e
in te rv a l b e tw e e n d e fro s t c y c le s , w h ile its le n g th is c o n tro lle d b y p a ra m e te r MdF.
1. Push and im m ediately release the SET key: the display
will show the Set point value.
2. Push and im m ediately release the SET key or w ait for 5
seconds to display the probe value again.
Each LED function is described in th e fo llo w in g table.
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