Carel EVD Evolution Twin - 8.3 Unit of measure

ENG
“EVD Evolution TWIN” +0300006EN - rel. 2.6 - 31.01.2019
47
user *
Parameter/description Def. Min. Max. UOM
Type **
CAREL SVP
Modbus®
Note
Dew a low -15818 -32768 32767 - I 108 235 CO
Dew b high -14829 -32768 32767 - I 109 236 CO
Dew b low 16804 -32768 32767 - I 110 237 CO
Dew c high -11664 -32768 32767 - I 111 238 CO
Dew c low 16416 -32768 32767 - I 112 239 CO
Dew d high -23322 -32768 32767 - I 113 240 CO
Dew d low -16959 -32768 32767 - I 114 241 CO
Dew e high -16378 -32768 32767 - I 115 242 CO
Dew e low 15910 -32768 32767 - I 116 243 CO
Dew f high -2927 -32768 32767 - I 117 244 CO
Dew f low -17239 -32768 32767 - I 118 245 CO
Bubble a high -433 -32768 32767 - I 119 246 CO
Bubble a low -15815 -32768 32767 - I 120 247 CO
Bubble b high -15615 -32768 32767 - I 121 248 CO
Bubble b low 16805 -32768 32767 - I 122 249 CO
Bubble c high 30803 -32768 32767 - I 123 250 CO
Bubble c low 16416 -32768 32767 - I 124 251 CO
Bubble d high -21587 -32768 32767 - I 125 252 CO
Bubble d low -16995 -32768 32767 - I 126 253 CO
Bubble e high -24698 -32768 32767 - I 127 254 CO
Bubble e low 15900 -32768 32767 - I 128 255 CO
Bubble f high 10057 -32768 32767 - I 129 256 CO
Bubble f low -17253 -32768 32767 - I 130 257 CO
C Faulty closure alarm status
0/1=no/yes
001-D4948-
C Battery charge delay 0 0 250 min I 135 262 CO
ALARM CONFIGURATION
C Low superheat alarm delay (LowSH)
(0= alarm disabled)
300 0 18000 s I 62 189 -
C Low evaporation temperature alarm delay (LOP)
(0= alarm disabled)
300 0 18000 s I 63 190 -
C High evaporation temperature alarm delay (MOP)
(0= alarm disabled)
600 0 18000 s I 64 191 -
C High condensing temperature alarm delay (HiTcond)
CANNOT BE SELECTED
600 0 18000 s I 44 171 CO
C Low suction temperature alarm threshold -50 -85(-121) 200 (392) °C (°F) A 97 96 -
C Low suction temperature alarm delay
(0= alarm disabled)
300 0 18000 s I 65 192 -
VALVE
C EEV minimum steps 50 0 9999 step I 66 193 -
C EEV maximum steps 480 0 9999 step I 67 194 -
C EEV closing steps 500 0 9999 step I 68 195 -
C EEV rated speed 50 1 2000 step/s I 69 196 -
C EEV rated current 450 0 800 mA I 70 197 -
C EEV holding current 100 0 250 mA I 71 198 -
C EEV duty cycle 30 1 100 % I 72 199 -
C Synchronise position in opening 1 0 1 - D 37 36 -
C Synchronise position in closing 1 0 1 - D 38 37 -
Tab. 8.b
* User level: A= Service (installer), C= manufacturer.
** Type of variable: A= Analogue; D= Digital; I= Integer
CO= parameter settable from driver A or from driver B
8.3 Unit of measure
In the conguration parameters menu, with access by manufacturer password,
the user can choose the unit of measure for the driver:
• international system (°C, K, barg);
• imperial system (°F, psig).
Note: the units of measure K and R relate to degrees Kelvin or Rankine
adopted for measuring the superheat and the related parameters.
When changing the unit of measure, all the values of the parameters saved on
the driver and all the measurements read by the probes will be recalculated.
This means that when changing the units of measure, control remains
unaltered.
Example 1: The pressure read is 100 barg, this will be immediately converted
to the corresponding value of 1450 psig.
Example 2: The “superheat set point” parameter set to 10 K will be immediately
converted to the corresponding value of 18 °F.
Example 3: The “Temperature S4: maximum alarm value” parameter, set to
150 °C, will be immediately converted to the corresponding value of 302 °F.
Note: due to limits in the internal arithmetic of the driver, pressure
values above 200 barg (2900 psig) and temperature values above 200 °C (392
°F) cannot be converted