Carel EVD4, Руководство пользователя, Страница: 34 / 48

34
ENGL
ISH
EVD
4
+030220227 - rel. 2.1 - 12.06.2008
APPENDIX II. DESCRIPTION OF THE PARAMETERS
Parameter PV address Default
EVD%40%
and
EVD%43% Default
EVD%41%
and
EVD%44% Default
EVD%42%
and
EVD%45% Description UI Meaning
µC 2 off line D 24 0 0 0 active when µC 2 is not connected to
EVD 4
The tLAN communication has been interrupted or has not been restored, see the
WARNING in par. 3.1.1
100% capacity D 26 0 0 0 active when the capacity of the circuit
is 100% µC 2 has brought the capacity of the compressor to 100%, the information is sent to
EVD 4 so as to preposition the electronic expansion valve
50% capacity D 25 0 0 0 active when the capacity of the circuit
is 50% µC 2 has brought the capacity of the compressor to 50%, the information is sent to
EVD 4 so as to preposition the electronic expansion valve
Act. SH set A 10 0 0 0 current superheat set point This is equal to CH-Superheat set (or similar for HP or DF), corrected if necessary by
the safety devices and/or the modulation, read-only
Alarm Eeprom error D 42 0 0 0 active following an EEPROM memory
error Fault in the EEPROM memory, the system may request a GO AHEAD; contact the
Carel technical service if the origin of the error is not clear
Alarm HiT asp D 46 0 0 0 active in conditions with excessive
suction temperature The temperature measured by the EVD 4 probe has exceeded the threshold value set
for the High superheat alarm threshold for a time greater than the Alarms delay High
SH, check if the delay confi gured is suitable for the application
Alarm LOP timeout D 45 0 0 0 active in conditions with insuffi cient
evaporation pressure Active in conditions with insuffi cient evaporation pressure, that is, when LOP is lower
than the set threshold for LOP Cool Mode (or LOP Defr. Mode or LOP Heat Mode) for
a time greater than the Alarms delay LOP, check if the delay confi gured is suitable for
the application
Alarm Low
Superheat D 41 0 0 0 active in low superheat conditions Active when the SH measured is lower than the set threshold for CH-Low Superheat
(or similar for HP or DF) for a time greater than the Alarms delay Low SH, check if the
timeout is suitable for the application
Alarm MOP timeout D 44 0 0 0 active in conditions with excessive
evaporation pressure Active in conditions with excessive evaporation pressure, that is, when MOP is greater
than the set threshold for MOP Cool Mode (or MOP Defr. Mode or MOP Heat
Mode) for a time greater than the MOP delay, check if the timeout is suitable for the
application
Alarm probe error D 43 0 0 0 active following an error on the signal
from the probe The driver interprets a signal from the sensor that is outside of a determined range of
operation as being a probe error; the interval depends on the type of probe and the
input used, as described in table A. The system may request a GO AHEAD; contact the
Carel technical service if the origin of the error is not clear
Alarms delay
High SH I 55 0 0 0 high superheat temperature alarm delay
in CH mode This is the time that passes from when High superheat alarm threshold is continuously
exceeded to when the user wants the error to be displayed and/or managed
Alarms delay LOP I 53 60 60 120 low evaporation pressure (LOP) alarm
delay This is the time that passes from when the superheat temperature is continuously
less than the value set for LOP cool mode (or LOP Defr. Mode or LOP Heat Mode) to
when the user wants the error to be displayed and/or managed
Alarms delay
Low SH I 52 60 60 120 low superheat alarm delay This is the time that passes from when the value of superheat is continuously less than
the value set for CH-Low Superheat (or similar for HP or DF) to when the user wants the
error to be displayed and/or managed
Alarms delay MOP I 54 0 0 0 high evaporation pressure (MOP)
alarm delay This is the time that passes from when the superheat temperature is continuously
greater than the value set for MOP cool mode (or MOP Defr. Mode or MOP Heat
Mode) to when the user wants the error to be displayed and/or managed
Alarms delay probe
error I 48 10 10 10 probe error alarm delay This is the time that passes from when the Alarm probe error is continuously active to
when the user wants the error to be displayed and/or managed
Aux reg. I 56 0 0 0 type of auxiliary PID control “0 = no auxiliary control1 = enable high condensing temperature protection (see Hi
Tcond. protection)”
Aux. probe confi g. I 69 auxiliary probe confi guration “Confi gured from pCO, this fi eld defi nes the third probe on the EVD 4
, the probe is
read only and sent to the pCO. The read options and the probes available depend on
the control settings:
- NTC
- NTCht
- Pt1000
- Pressure”
Aux. probe limits
Max I 44 9,3 9,3 9,3 ratiometric end scale pressure S2 Value corresponding to 100% of the pressure read by the ratiometric probe connected
to channel S2
Aux. probe limits
Min I 43 -1 -1 -1 ratiometric zero pressure S2 Value corresponding to 0% of the pressure read by the ratiometric probe connected
to channel S2
Battery presence I 63 enable valve not closed error used if EVD 4 is installed with a backup battery, enables the EEV not closed error (see
the corresponding description of the parameter), from pCO
Blocked valve check I 51 0 0 0 time after which the valve is considered
as being blocked If SH is high and the valve is open or if SH is low and the valve is closed, the valve
may be considered blocked. This parameter defi nes the delay before performing,
respectively, a forced closing or a forced opening.
Calibr. S4 gain mA I 111 0 0 0 current gain on channel S4 This is the correction to the end scale in the calibration of channel S4, used to receive
a 4-20 mA signal when the driver is operating as a positioner
Calibr. S4 gain Volt I 113 0 0 0 voltage gain on channel S4 This is the correction to the end scale in the calibration of channel S4, used to receive a
0-10 Volt signal when the driver is operating as a positioner
Calibr. S4 offs mA I 112 0 0 0 current offset on channel S4 This is the correction to the deviation from zero in the calibration of channel S4, used
to receive a 4-20 mA signal when the driver is operating as a positioner
Calibr. S4 offs Volt I 114 0 0 0 voltage offset on channel S4 This is the correction to the deviation from zero in the calibration of channel S4, used
to receive a 0-10 Volt signal when the driver is operating as a positioner
In this square the Valve system confi guration values are set.
These parameters have to be set and checked before starting up the unit.
Key:
„
= Main parameters required to start operation;
†
= Secondary parameters required for optimum operation.