Commissioning; Confi Guration; Recommended Initial Confi Guration - Carel MPXPRO User Manual

ENG

4.1 Confi guration

Once the electrical connections have been completed (see the chapter
on Installation) and the power supply has been connected, the operations
required for commissioning the controller depend on the type of
interface used, however essentially involve setting the so-called initial
confi guration parameters. See the guided commissioning procedure.
1. MXOPZKEYYA0 / IROPZKEYA0 (fi rmware 1.x) programming key.
MPXPRO can be confi gured using programming keys that have
themselves been programmed. In this case, simply plug the key into
the connector. The operation must be performed with the controller
off . After loading the parameters the controller can be started.
2. Commissioning tool software, VPM. This procedure is used to
program and test the operation of the MPXPRO from a PC during
commissioning when starting the system. In particular, this method
is used to:
• set the values, visibility and attributes of all the parameters
(including unit parameter);
• completely program a key;
• during start-up, monitor and manually override all the inputs/
outputs;
• update the fi rmware.
The commissioning tool can be connected from the PC via:
a: a dedicated port available on some user terminals/remote
displays
AUX
Terminal
IR00UGC300
IR00XGC300
b: the RS485 supervisor network
MASTER SLAVE
tLAN
RS485
CVSTDUMOR0
USB/RS485 converter
3. User terminal. When fi rst started, MPXPRO activates a special
procedure to set the critical parameters for:
• correct communication of the controller with a supervisor and Master/
Slave network;
• management of the electronic valve.
This procedure can be disabled from the key or commissioning tool
(VPM). During this procedure, the device remains in standby and the
functions are disabled (including control and communication via
RS485 or tLAN). The special confi guration menu is only displayed on
the user terminal, consequently one needs to be connected if the
function is not disabled (avoiding confl icts in the network/LAN or
return of liquid refrigerant to the compressor).
Only after having set all the required parameters can normal
confi guration be performed.
4. Remote control. When fi rst started, this can be used to directly
confi gure the critical parameters without needing to activate the
synchronization function (synch button).
MPXPRO - + 0300055EN rel. 1.0 30/08/10

4. COMMISSIONING

tLAN
USB
IROPZTNL00
USB/tLAN converter
commissioning
cable
PC
Fig. 4.a
PC
USB
Fig. 4.b

4.2 Recommended initial confi guration

MPXPRO features highly confi gurable inputs and outputs. CAREL in any
case recommends the basic confi guration following the default settings
of the parameters. By following this suggestion, the controller can
independently manage the main functions in most applications, without
having to signifi cantly modify the settings of the parameters.
Inputs
The default confi guration involves:
Group 1: NTC temperature probes on the showcase:
• S1: NTC outlet probe Sm;
• S2: NTC defrost probe Sd;
• S3: NTC intake probe Sr.
Group 2: superheat control:
• S4/DI1: NTC superheated gas temperature probe on evaporator outlet
(confi gured only on models with valve driver included, see parameter
/Fd)
• S5/DI2: input not active;
Group 3: superheat control:
• S6/DI3: ratiometric evaporator pressure probe (confi gured only on
models with valve driver included, see advanced parameters /P3, /U6,
/L6, /FE).
Group 4:
• S7: input not active.
Group 5:
• digital input DI5 not active (see parameter A12)
Default connections:
S1 S2
37 36
NTC NTC NTC NTC
air off temperature
probe (Sm)
defrost temperature
probe (Sd)
air on temperaure
probe (Sr)
Outputs
The default confi guration involves:
Relay 1: solenoid valve/compressor (not modifi able);
Relay 2: light (see parameter H7);
Relay 3: defrost (not modifi able);
Relay 4: evaporator fans (see parameter H1);
Relay 5: alarm (see parameter H5);
PWM 1: anti-sweat heater control, see paragraph 6.3.
PWM 2: evaporator fan speed control, see FAN category parameters.
Note: VPM (Visual Parameter Manager) can be used to modify the
relay mapping.
26
S4/
S5/ S6/ S7/
S3 GND GND 5Vdc
DI1 DI2 DI3 DI4
35 34 33 32 31 30 29 28
NTC NTC NTC NTC RATIOMETRIC
saturated evaporation
pressure/temperature
proibe (PEu/tEu)
superheated
gas probe (tGS)
Fig. 4.c