Emerson EC2-XC645CX User Manual

OI_EC2-XC645CX_A1_A2L_A3_EN_Rev01_866933.docx EC2-XC645CX 20/54
USE OF THE PROGRAMMING “HOT KEY “
16.1 How to program a hot key from the instrument (UPLOAD)
1. Program one controller with the front keypad.
2. When the controller is ON, insert the “Hot key” and push o key; the "uPL" message appears
followed a by flashing “End”
3. Push “SET” key and the End will stop flashing.
4. Turn OFF the instrument remove the “Hot Key”, then turn it ON again.
NOTE: The “Err” message is displayed for failed programming. In this case push again o key if
you want to restart the upload again or remove the “Hot key” to abort the operation.
16.2 How to program an instrument using a hot key
(DOWNLOAD)
1. Turn OFF the instrument.
2. Insert a programmed “Hot Key” into the 5 PIN receptacle and then turn the Controller ON.
3. Automatically the parameter list of the “Hot Key” is downloaded into the Controller memory,
the “doL” message is blinking followed a by flashing “End”.
4. After 10 seconds the instrument will restart working with the new parameters.
5. Remove the “Hot Key”.
NOTE: The message “Err” is displayed for failed programming. In this case turn the unit off and
then on if you want to restart the download again or remove the “Hot key” to abort the
operation.
The unit can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory
to the “Hot Key” and vice-versa.
LIST OF PARAMETERS
17.1 Plant dimensioning and type of regulation.
The EC2-XC645CX is pre-set to drive a Digital Scroll compressor.
The relay 15-17 is set to manage the Digital compressor, while the TRIAC output 17-19 drives its
solenoid valve.
oA1 (term. 15-17), oA2 (term. 16-17), oA3 (term. 17-18), oA4 (term. 17-20), oA6 (term. 21-22)
outputs 2 3 4 6 configuration: by means of these parameters the plant can be dimensioned
according to the number and type of compressors and/or fans and the number of steps for each
one.
Each relay according to the configuration of the oA(i), where (i) = 1, 2, 3, 4, 5, 6 parameters can
work as:
- Not used: oA(i) = nu
- Compressor circuit1: oA(i) = cPr1,
- Digital compressor: oA1 = dGS
- Blocked bank for Digital Stream
®
6D: oA(i) = 6dG
- Step: oAi = StP
- Fan: oAi = FAn
- Fan with inverter/ECI fan: oA(i) = InF
- Injection of cooling liquid: oAi = Lin
- Alarm: oAi = ALr
- Flood protection function: oA(i) = Liq
- Valve for hot gas injection in case of low superheat: oA(i) = HGi

Emerson EC2-XC645CX Specifications

General

Brand	Emerson
Model	EC2-XC645CX
Category	Controller
Language	English