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Emerson Dixell XR75CX Series User Manual
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XR75CX Digital Controller for Medium-Low
T
emperat
ure Re
friger
ation Applications
Installation and Operation Manual
026-1210 Re
v 4
2
Table of Contents
Default Chapter
5
Table of Contents
5
1 Introduction
7
General Warning
7
2 Overview
7
General Description
7
Ordering Code
7
3 Controlling Loads
8
Compressor
8
Defrost
8
Control of Evaporator Fans
8
Forced Activation of Fans
8
Cyclical Activation of the Fans with Compressor off
8
Light Relay Configuration
8
Oa2; Terminals 1-2)
8
Light Relay
9
Auxiliary Relay - Oa2=Aus
9
On/Off Relay (Oa2=Onf)
9
Neutral Zone Regulation
9
Alarm Relay
9
Night Blind Management During Energy Saving Cycles
9
4 Front Panel Commands
10
Keys and Functions
10
Use of Leds
10
5 Max and Min Temperature Memorization
11
How to See the Min Temperature
11
How to See the Max Temperature
11
How to Reset the Max and Min Temperature Recorded
11
6 Main Functions
12
How to See the Setpoint
12
How to Change the Setpoint
12
How to Start a Manual Defrost
12
How to Change a Parameter Value
12
The Hidden Menu
12
How to Enter the Hidden Menu
12
How to Move a Parameter from the Hidden Menu to the First Level and Vice Versa
13
How to Assign Amodbus Address
13
How to Lock the Keyboard
13
T Ounlock the Keyboard
13
The Continuous Cycle
13
The On/Off Function
13
7 Parameters
14
8 Digital Inputs
19
Generic Alarm (I2F=Eal)
19
Serious Alarm Mode (I2F=Bal)
19
Pressure Switch (I2F=Pal)
19
Door Switch Input (I1F or I2F=Dor)
19
Start Defrost (I1F or I2F=Def)
19
Switch the Auxiliary Relay (I2F=Aus)
19
Inversion of the Kind of Action: Heating - Cooling (I2F=Htr)
19
Energy Saving (I2F=Es)
19
On - off Function ( I 2F= on F)
19
9 Rs485 Serial Line (for Monitoring Systems)
20
10 Rep Output (Optional)
20
11 Installation and Mounting
21
12 Electrical Connections
21
Probe Connection
21
13 How to Use the Hot Key
22
14 Alarm Signals
23
Silencing Buzzer/Alarm Relay Output
23
Alarm Recovery
23
Other Messages
23
15 Specifications
24
16 Connections
26
17 E2 Modbus Network Wiring
27
18 Ect Modbus Networking to E2S
28
Com Port Associations - E2 Versions
28
Com Port Associations - E2 Versions 4.2 and above
28
E2 Setup of Devices
29
Set up Network Ports
29
Add and Connect the Device
29
Wiring Types
30
Modbus Termination Blocks
31
19 Default Setting Values
32
Appendix A - Alternate Modbus Com Wiring Method for E2, Xr, XM, and Xev Devices
36
4
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Emerson Dixell XR75CX Series Specifications
General
Brand
Emerson
Model
Dixell XR75CX Series
Category
Controller
Language
English
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