1592001431 XC650CX GB r3.5 21.07.2020 XC650CX 20/56
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.
17. List of parameters
17.1 Plant dimensioning and type of regulation.
The XC650CX is pre-set to drive a rack with 3 compressors and 2 fans.
oA1 (term. 15-17/19), oA2 (term. 16-17/19), oA3 (term. 18-21/22), oA4 (term. 20-21/22), oA5
(term. 25/26), relay 1, 2, 3, 4, 5 configuration, oA6 (term. 27-28) 12Vdc/40mA output 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 parameter can
work as:
- Not used: oA(i) = nu
- Compressor circuit1: oA(i) = cPr1,
- Compressor circuit2: oA(i) = cPr2,
- Step: oA(i) i = StP
- Inverter compressor for circuit 1: oA(i) = inC1
- Inverter compressor for circuit 2: oA(i) = inC2
- Fan: oA(i) = FAn
- Fan with inverter/ECI fan: oA(i) = InF
- Injection of cooling liquid: oA(i) = Lin
- Alarm: oA(i) = ALr
- Flood protection function: oA(i) = Liq
- Valve for hot gas injection in case of low superheat: oA(i) = HGi
NOTE: also the “dGS”, “6dG”, “dGst” values are present. These values must not be used.
COMPRESSORS CONFIGURATION
According to the oA1, oA2, oA3, oA4, oA5, oA6 configuration, 2 kinds of plant can be defined:
Rack with compressors only: all the oAi different from FAn
Rack with compressors and fans: both FAn and CPr are used for oAi.
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