Emerson XC1008D Wiring diagram

XC1008D-XC1011D-
XC1015D and VGC810
(rel. 1.5A)

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INDEX
1. GENERAL WARNING 4
1.1 PLEASE READ BEFORE USING THIS MANUAL 4
1.2 SAFETY PRECAUTIONS 4
2. WIRING CONNECTIONS 5
2.1 XC1008D 5
2.2 XC1011D 6
2.3 XC1015D 7
2.4 DESCRIPTIONS OF THE WIRING CONNECTIONS 7
3. USER INTERFACE 9
3.1 WHAT IS DISPLAYED WHEN THE KEYBOARD IS CONNECTED 9
3.2 DISPLAY VISUALIZATION 10
3.3 PROGRAMMING 12
4. SERVICE MENU 15
4.1 HOW TO ENTER THE SERVICE MENU 15
4.2 HOW TO PROGRAM AN INSTRUMENT USING A HOT KEY 16
4.3 HOW TO SEE THE VALUES OF ANALOG OUTPUTS 16
4.4 HOW TO SEE THE STATUS OF THE RELAYS 17
4.5 COMPRESSOR SERVICE SUB- MENU –FOR MAINTENANCE SECTIONS 17
4.6 HOW TO SEE THE STATUS OF DIGITAL INPUTS 19
4.7 HOW TO SEE THE VALUES OF THE PROBES 20
4.8 HOW TO SET TIME AND DATE 20
5. ALARMS 21
5.1 MENU ACTIVE ALARMS 21
5.2 ACTIVE ALARM LOG MENU 22
5.3 ACTIVE ALARM LOG MENU 23
6. PARAMETERS 23
7. REGULATION 42
7.1 NEUTRAL ZONE ADJUSTMENT –ONLY FOR COMPRESSORS 42
7.2 PROPORTIONAL BAND ADJUSTMENT –FOR COMPRESSORS AND FANS 43
8. SCREW COMPRESSORS 45
8.1 REGULATION WITH SCREW COMPRESSORS LIKE BITZER/HANBELL/REFCOMP ETC 45
8.2 REGULATION WITH SCREW COMPRESSORS LIKE FRASCOLD 45
9. ANALOG OUTPUTS FOR INVERTER 47
9.1 COMPRESSOR MANAGEMENT 47

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9.2 FANS MANAGEMENT WITH INVERTER–1FANS GROUP WITH INVERTER MODE,OTHERS ON IN
ON/OFF MODE 49
9.3 MANAGEMENT OF ALL FANS WITH INVERTER –PROPORTIONAL INVERTER 49
10. ALARM LIST 50
10.1 ALARM CONDITIONS –SUMMARY TABLE 51
11. CONFIGURATION ERRORS 53
12. MOUNTING & INSTALLATION 53
12.1 XC1000D DIMENSIONS 54
12.2 VG810 DIMENSIONS AND MOUNTING 55
13. ELECTRICAL CONNECTIONS 56
13.1 PROBES CONNECTION 56
14. RS485 SERIAL LINK 56
15. TECHNICAL FEATURES 56
16. DEFAULT SETTING 58

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1. GENERAL WARNING
1.1 Please read before using this manual
This manual is part of the product and should be kept near the instrument for easy and quick
reference.
The instrument shall not be used for purposes different from those described hereunder. It
cannot be used as a safety device.
Check the application limits before proceeding.
1.2 Safety Precautions
Check the supply voltage is correct before connecting the instrument.
Do not expose to water or moisture: use the controller only within the operating limits avoiding
sudden temperature changes with high atmospheric humidity to prevent formation of
condensation
Warning: disconnect all electrical connections before any kind of maintenance.
The instrument must not be opened.
In case of failure or faulty operation send the instrument back to the distributor or to “DIXELL
s.r.l.” (see address) with a detailed description of the 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 far enough
from each other, without crossing or intertwining.
Fit the probe where it is not accessible bythe end user.
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in
parallel with inductive loads could be useful.

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2. Wiring connections
2.1 XC1008D
NOTE: according to the models the digital inputs: (3-18) and (52-55) can operates at 230V/120V
or 24V. Verify on the controller which is the right voltage that can be applied.
ATTENTION
Configurable digital inputs (term. 36-43) are free voltage.

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2.2 XC1011D
NOTE: according to the models the digital inputs: (3-24) and (52-59) can operates at 230V/120V
or 24V. Verify on the controller which is the right voltage that can be applied.
ATTENTION
Configurable digital inputs (term. 36-43) are free voltage.

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2.3 XC1015D
NOTE: according to the models the digital inputs: (3-26) and (46-59) can operates at 230V/120V
or 24V. Verify on the controller which is the right voltage that can be applied.
ATTENTION
Configurable digital inputs (term. 36-43) are free voltage.
2.4 Descriptions of the wiring connections
1 - 2 Power supply: WARNING: THE SUPPLY IS 24Vac/dc
3 –26 Digital inputs for safeties of compressors and fans – main voltage. When an d. i. is
activated, the corresponding output is switched OFF. Please note: the digital input 1 is linked to
the relay 1 (C1); d.i. 2 to relay 2 (C2), etc.
30-31Analog output 4 (0-10V or 4-20mA depends on the parameter 3Q1)

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31-32 Analog output 3 (0-10V or 4-20mA depends on the parameter 3Q1)
34-35 Analog output 1 (0-10V or 4-20mA depends on the parameter 1Q1)
33-34 Analog output 2 (0-10V or 4-20mA depends on the parameter 1Q1)
36-37 Configurable digital input 1 (free voltage)
38-39 Configurable digital input 2 (free voltage)
40-41 Configurable digital input 3 (free voltage)
42-43Configurable digital input 4 (free voltage)
46-51 Digital inputs for safeties of compressors and fans – main voltage. When an d. i. is
activated, the corresponding output is switched OFF. Please note: the digital input 1 is linked to
the relay 1 (C1); d.i. 2 to relay 2 (C2), etc.
52 - 53 Low pressure-switch input for circuit 1: input at the same voltage of loads.
54 - 55 High pressure-switch input for circuit 1: input at the same voltage of loads.
56 - 57 Low pressure-switch input for circuit 2: input at the same voltage of loads.
58 - 59 High pressure-switch input for circuit 2: input at the same voltage of loads.
60-61 RS485 output
62 –(63) or (68): Suction probe input for circuit 1:
with AI1 = cur or rat use 62 -68
with AI1 = ntc or ptc use 62 -63
64 –(63) or (68): Suction probe input for circuit 2:
with AI1 = cur or rat use 64 -68
with AI1 = ntc or ptc use 64 -63
65 –(66) or (69): Condensing probe input for circuit 1:
with AI8 = cur or rat use 65 -69
with AI8 = ntc or ptc use 65 -66
67 –(66) or (69): Condensing probe input for circuit 2:
with AI8 = cur or rat use 67 -69
with AI8 = ntc or ptc use 67 -66
70-71 Auxiliary probe 1
71-72 Auxiliary probe 2
73-74 Auxiliary probe 3
74-75 Auxiliary probe 4
78- 79- 80 Keyboard
81-82-83: Safety relay: XC1000D off or damaged: 81-82 closed
XC1000D working: 81-83 closed
84-85-86: Alarm relay:

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88 - 103 and 106 - 119 Relay configurable outputs for compressors, fans, alarms and aux.
The functioning of the relays depends on thesetting of the correspondent C(i).
3. User interface
3.1 What is displayed when the keyboard is connected
Where:
release: Rel Firmware XC1000D / release OS Visograph / release Program Visograph
Push the ENTER key to enter the standard visualization

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3.2 Display visualization
(1) Symbol of compressor: it’s present for the following configuration of the parameter C0.
C0 = 1A0D; 1A1D, 2A0D, 2A1D, “2A2D
(2) Status of the suction section:
The pressure (temperature) is below the regulation band and the capacity of the plant
is decreasing
The pressure (temperature) is above the regulation band and the capacity of the plant
is increasing
(3) Analog output status for frequency compressor: it’s present only if a frequency
compressor is used. It displays the percentage of the analog output driving the inverter.
Not present if the “free” analog output is used.
(4) Suction pressure (temperature) set point: : it’s present for the following configuration of
the parameter C0: 1A0D; 1A1D, 2A0D, 2A1D, “2A2D
(5) Current value of suction pressure (temperature): it’s present for the following
configuration of the parameter C0: 1A0D; 1A1D, 2A0D, 2A1D, “2A2D
(6) Alarm: it’s display when an alarm happens in suction section
(7) Alarm: it’s display when an alarm happens in delivery section
(8) Delivery pressure (temperature) set point: it’s present for the following configuration of
the parameter C0: 0A1D; 1A1D, 0A2D, 1A2D, “2A2D
(9) Current value of delivery pressure (temperature): it’s present for the following
configuration of the parameter C0: 0A1D; 1A1D, 0A2D, 1A2D, “2A2D

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(10) Analog output status for inverter for fan: it’s present only if an inverter for fan is used. It
displays the percentage of the analog output driving the inverter.
Not present if the “free” analog output is used.
(11) Status of the delivery section:
The condenser pressure (temperature) is below the regulation band and the number of
fans is decreasing
The condenser pressure (temperature) is above the regulation band and the number
of fans is increasing
(12) Number of fans activated / Total number of fans it’s present for the following
configuration of the parameter C0.
C0: 0A1D; 1A1D, 0A2D, 1A2D, “2A2D
NOTE: the total number of fans is referred to the number of available fans. Fans that are in
“maintenance” or that are stopped by their own digital input aren’t included.
(13) Symbol of fan: it’s present for the following configuration of the parameter C0.
C0: 0A1D; 1A1D, 0A2D, 1A2D, “2A2D
(14) Number of compressors and steps activated / Total number of compressors and
steps. it’s present for the following configuration of the parameter C0.
C0 = 1A0D; 1A1D, 2A0D, 2A1D, 2A2D
NOTE: the total number of compressors is referred to the number of available compressors.
Compressors that are in “maintenance” or that are stopped by their own digital input aren’t
included.
Keys Alarm: to enter the alarm menu
Parameter: to enter the parameter programming
Service: to enter the Service menu
Measurement unit: to switch the probe visualization and set point from pressure to
temperature and vice versa
To switch the controller off: hold pushed for 10s to switch the controller off (it’s
enabled only if the parameter OT9 = yES)
Energy saving: hold pushed for 10s to enable the energy saving cycle (the SET label
starts flashing)
Circuit 2: to pass to visualization of the variables of the second circuit, It’s present for
the following configuration of the parameter C0: 0A2D; 2A0D, 2A2D.

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3.3 Programming
Push the key and the programming menu is entered.
Parameters are collected in two menu:
Pr1: menu of parameters without password. Press the Pr1 key to enter.
Pr2: menu of parameters with password. If the password is enabled, use the following procedure to
put it.
3.3.1 Password introduction to enter Pr2
If the password is enabled, by pushing thePr2 key the following interface is displayed:
1. Push the SET key.
2. Use the UP and DOWN keys to set the password
3. Push the SET key to confirm it
4. The following message is displayed

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5. Push the ENTER key to enter in Pr2 menu
3.3.2 Parameters grouping
The parameters are collected in sub-menu according to the following interface.
The parameters sub menu are the following:
Set Point (SETC1-SETF2)
Compressor Rack setup (C0-C18, C34-C36)
Regulation (C37-C44)
Display (C45-C46)
Analog Inputs of regulation (Ai1-Ai15)
Analog Inputs of auxiliary (Ai16-Ai28)
Safety Digital Inputs (Di2-Di13)
Digital Inputs (Di14-Di27)
Display (C45-C44)
Compressor Action (CP1-CP8)
Safety Compressors (CP9-CP18)
Fan Action (F1-F8)
Safety Fans (F9-F10)
Energy Saving (HS1-HS14)
Compressor Alarms (AC1-AC19)

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Fan Alarms (AF1-AF17)
Dynamic Setpoint Suction (o1-o8)
Condenser Set point (O9-O14)
Analog outputs configuration (1Q1, 3Q1)
Analog Outputs 1 (1Q1-1Q26)
Analog Outputs 2 (2Q1-2Q25)
Analog outputs 3 (3Q2-3Q26)
Analog outputs 4 (4Q1-4Q25)
Auxiliary Outputs (AR1-AR12)
Other (oT1-OT9)
NOTE: some sub menu could be absent depending on the model.
Push the SET key to enter a menu and the parameter with their value will be displayed: see below
picture.
Push the key and use the UP and DOWN keys to modify the value.
Then push the key to store the new value and move to the following parameter.
NOTE: the Pr2 or Pr1 message is present only in Pr2 menu.
It is possible to modify the level of each parameter changing Pr2 Pr1 or vice versa.
NOTE: Pushing the EXIT button the initial screen shot is displayed.

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4. SERVICE MENU
The service menu collect the main functions of the controller.
From the Service menu is possible to:
- see the values of analog outputs
- see the status of compressor relay
- operate a maintenance section
- see the status of safety and configurable digital inputs
- see the values of the probes
- set the real time clock
- use the HOT KEY to program the instrument or to program the HOT KEY
- set the password and enable it for some menu
- set the instrument language.
4.1 How to enter the Service menu
From the main display screen push the SERVICE button and the SERVICE menu is entered.
See below picture:
The Service sub-menu are the following:
ANALOG OUTPUTS
RELAY OUTPUTS
COMPRESSOR SERVICE
DIGITAL INPUTS
PROBES
PASSWORD
LANGUAGE
Select one of them with the UP or DOWN keys then push the SET key to enter the sub-menu

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4.2 How to program an instrument using a HOT KEY
The XC1000D uses a standard Dixell HOT KEY (cod. DK00000100).
4.2.1 How to program the HOT KEY.
1. Program one controller with the front keypad.
2. When the controller is ON, insert the “Hot key”. Enter the SERVICE menu and push the UPL
key. The display will shows the message “PLEASE WAIT”.
3. The instrument will shows during 10sec:
“END”: the programming phase is ended successfully
the “ERROR” message is displayed for failed programming. In this case push again the UPL
key if you want to restart the upload again.
4.2.2 How to program an instument using a HOT KEY
1. Switch off the controller or enter the SERVICE menu.
2. Insert a programmed “Hot Key” into the 5 PIN receptacle
3. Turn the controller on, or push the DOL key of the SERVICE menu.
4. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory,
the “doL” message is blinking. The display will shows the message “PLEASE WAIT”.
4. The instrument will shows during 10sec:
“END”: the programming phase is ended successfully.
Remove the “Hot Key”, the XC1000D will restart working with the new parameters.
NOTE: until the “Hot Key” is inserted, the instrument doesn’t start the regulation.
the “ERROR” message is displayed for failed programming. In this case push again the UPL
key if you want to restart the upload again.After 10 seconds the instrument will restart working
with the new parameters.
4.3 How to see the values of analog outputs
Procedure:
1. Enter the SERVICE menu
2. Select ANALOG OUTPUTS sub-menu
3. Push the SET key.
The ANALOG OUTPUTS sub-menu displays the status of the analog outputs of the controller, with
the following layout:

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This outputs can be used to drive an external inverter or to repeat a main probe, by means of a
signal 4-20mA or 0-10V.
4.4 How to see the status of the relays
Procedure:
1. Enter the SERVICE menu
2. Select LOADS STATUS
3. Push the SET key.
The LOADS STATUS sub-menu displays the status of the relays in the following format:
With this meaning:
First column: number of relay; second column: configuration; third column: status.
4.5 COMPRESSOR SERVICE SUB- MENU – For maintenance
sections
The COMPRESSOR SERVICE menu could be protected by password. See chapter 3.3.1.
By means of the COMPRESSOR SERVICE sub-menu is possible to perform a maintenance
section, consisting on:
- disabled an output
- check and (eventually) erase the running hour of a load.
4.5.1 How to enter the “COMPRESSOR SERVICE” submenu.
Procedure:
1. Enter the SERVICE menu
2. Select COMPRESSOR SERVICE sub-menu
3. Push the SET key.
The COMPRESSOR SERVICE sub-menu displays the status of the relays with the following
layout:

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4.5.2 How to disabled/enabled an output during a maintenance section.
To disabled an output during a maintenance session means to exclude the output from the
regulation:
To do it act as in the following
1. Enter the COMPRESSOR SERVICE sub-menu, as described in the previous paragraph.
2. Select the load by means of the UP and DOWN keys.
3. Push the SET key, then use the UP and DOWN keys to move the status to ON to OFF
and vice versa.
4. Confirm the selection by means of the SET key.
4.5.3 Regulation with some outputs disabled.
If some outputs are disabled they don’t take part to the regulation, so the regulation goes on with the
other outputs.
4.5.4 How to display the running hours of a load.
The controller memorises the running hours of each load.
To see how long a load has been working enter theCOMPRESSOR SERVICE sub-menu.
The running hour aredisplayed with the following layout:

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4.5.5 How to erase the running hours of a load
After a maintenance session usually is useful to erase the running our of a load.
To do it act as in the following
1. Enter the COMPRESSOR SERVICE sub-menu, as described in the paragraph. 4.5.1.
2. Select the load by means of the UP and DOWN keys.
3. Push the SET key, then use the DOWN key to decrease the running hour of the load..
4. Confirm the setting by means of the SET key.
To exit: push the EXIT key to come back to the SERVICE menu.
4.6 How to see the status of digital inputs
Procedure:
1. Enter the SERVICE menu
2. Select DIGITAL INPUTS sub-menu
3. Push the SET key.
The DIGITAL INPUTS sub-menu displays the status of the safety and configurable digital inputs,
with the following layout:
Safety digital inputs

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HP, LP and configurable inputs
4.7 How to see the values of the probes
Procedure:
1. Enter the SERVICE menu
2. Select PROBES sub-menu
3. Push the SET key.
The PROBES sub-menu displays the probe values, with the following layout:
To change the measurement unit for the probe PB1, PB2, PB3, PB4, push UNIT button.
4.8 How to set time and date
Procedure:
1. Enter the SERVICE menu
2. Select REAL TIME CLOCK sub-menu
3. Push the SET key.
The REAL TIME CLOCK sub-menu displays time and date, with the following layout: