Carel EVD4, User Manual, Page: 17 / 48

17
MOLEX
®
Mini-Fit 538-39-01-2140
G Vbat DI1 S4V S3 S2 S1
G0 GND
4...20 mA
0...10 V
DI2 S4I Vr1 Vr2 OC
+
Fig. 3.9
USB
convertitore /
converter
CVSTDUTTL0
A
GN
X
RT+ RT
-
B
Fig. 3.10
G V
bat
DI1 S4V S3 S2 S1
G0 GND DI2 S4I Vr1 Vr2 OC
EVD
4
0,8 A T
24 Vac
DI 1
230 Vac
Fig. 3.11
Fig. 3.12
ENGL
ISH
EVD
4
+030220227 - rel. 2.1 - 12.06.2008
3.3 Application as positioner (EVD000*40* and EVD000*43*)
The EVD 4 code EVD000*40* (or EVD000*43*) can be used as a positioner for electronic expansion
valves, proportional to a 4 to 20 mA or 0 to 10 Volt signal from a controller.
3.3.1 Connections
Communication: connect S4I and GND to the controller for 4 to 20 mA signals;
connect S4V and GND to the controller for 0 to 10 Volt signals (Fig. 3.9).
Confi guration: connect the converter (CVSTDUTTL0 or CVSTD0TTL0) to the service serial port and to a
PC with USB or RS232 (Fig. 3.10).
Power supply: with reference to Fig. 3.11, connect G and G0 to the 24 Vac power supply side.
Valve: with reference to Fig. 3.12 connect the valve according to the type set for the “Valve
type” parameter.
3.3.2 List of parameters
Below is the list of parameters visible on the EVD4-UI, divided into read and write; the meaning of each
parameter is detailed in APPENDIX II.
Key:
„
= Main parameters required to start operation;
†
= Secondary parameters required for optimum operation;
— = Advanced parameters.
WRITE
Parameter name Description
Mode dependent parameters (Fig. 9)
Calibr. S4 gain mA current gain on channel S4
Calibr. S4 offs mA current offset on channel S4
Calibr. S4 gain Volt voltage gain on channel S4
Calibr. S4 offs Volt voltage offset on channel S4
Global parameters (Fig. 9)
Regulation type
type of control
„
EEV mode man. enable/disable manual valve positioning
Requested steps required motor position in manual control
S4 probe type
type of probe on channel S4
„
Valve type
number that defi nes the type of electronic valve used
„
KEY 1
KEY 12
En. positioner
enable positioner function
„
READ
System measurements (Fig. 9)
Parameter name Description
EEV opening valve opening as a %
EEV position position of the valve in steps
S4 signal signal on input S4
Digital variables (Fig. 9)
Reset to default confi rm enable default parameters
Functional test functional test
Digital input 1 status of digital input 1
Stand alone select stand-alone operation
Key:
A Service serial port
B Main serial port
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
2
1
4
3
1
2
3
4
Green
Black
Red
White
Green
Yellow
Brown
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00004**
Sporlan
SEI
SEH
CAREL
DANFOSS
ETS
ALCO
EX5/6
2
1
4
3
3
4
1
2
Green
Yellow
Brown
White
Green
Black
Red
White
Green
White
Red
Black
Blue
White
Brown
Black
for code:
EVD00014**