Carel mastercella Technical Leaflet

+050004104 rel. 2.2 del 26.09.07
7
ENGLISH
4. SUMMARY OF OPERATING PARAMETERS
UOM = Unit of measure; Def. = Default value
Simbol Code Parameter AD U.O.M. Type Min Max Def.
Pw Password AD - C 0 200 22
/2 Measurement stability AD - C 1 15 4
/3 Probe display response AD - C 0 15 0
/4 Virtual probe AD - C 0 100 0
/5 Select °C or °F AD flag C 0 1 0
0: °C
1: °F
/6 Decimal point AD flag C 0 1 0
with tenths of a degree 0
without tenths of a degree 1
/tI Display on internal terminal AD - C 1 7 1
1: virtual probe
2: probe 1
3: probe 2
4: probe 3
5: probe 4
6: probe 5
7: set point
/tE Display on external terminal AD - C 0 6 0
remote terminal not present 0
1: virtual probe 1
2: probe 1 2
3: probe 2 3
4: probe 3 4
5: probe 4 5
6: probe 5 6
/P Select type of probe AD - C 0 2 0
NTC standard with range -50T90 °C 0
NTC enhanced with range -40T150 °C 1
PTC standard with range -50T150 °C 2
/A2 Configuration of probe 2 (S2) D
A
-
-
C
C
0
0
4
4
2
0
0: Probe absent
1: Product probe (display only)
2: Defrost probe
3: Condenser probe
4: Antifreeze probe
/A3 Configuration of probe 3 (S3/DI1) AD - C 0 4 0
As for /A2
/A4 Configuration of probe 4 (S4/DI2) AD - C 0 4 0
As for /A2
/A5 Configuration of probe 5 (S5/DI3) AD - C 0 4 0
As for /A2
/c1 Calibration of probe 1 AD °C/°F C -20 20 0.0
/c2 Calibration of probe 2 AD °C/°F C -20 20 0.0
/c3 Calibration of probe 3 AD °C/°F C -20 20 0.0
/c4 Calibration of probe 4 AD °C/°F C -20 20 0.0
/c5 Calibration of probe 5 AD °C/°F C -20 20 0.0
Simbol Code Parameter AD U.O.M. Type Min Max Def.
St Temperature Set point AD °C/°F F r1 r2 0.0
rd Control delta AD °C/°F F 0.1 20 2.0
rn Dead band AD °C/°F C 0.0 60 4.0
rr Reverse differential for control with dead band AD °C/°F C 0.1 20 2.0
r1 Minimum set point allowed AD °C/°F C -50 r2 -50
r2 Maximum set point allowed AD °C/°F C r1 200 60
r3 Operating mode AD flag C 0 2 0
0: Direct (cooling) with defrost control
1: Direct (cooling)
2: Reverse-cycle (heating)
r4 Automatic night-time set point variation AD °C/°F C -20 20 3.0
r5 Enable temperature monitoring AD flag C 0 1 0
0: Disabled
1: Enabled
rt Temperature monitoring interval AD ore F 0 999 -
rH Maximum temperature read AD °C/°F F - - -
rL Minimum temperature read AD °C/°F F - - -

Carel mastercella Specifications

General

Series	Mastercella
Front Protection	IP65
Protection Rating	IP65 (front)
Control Type	PID, ON/OFF
Display	LCD
Inputs	NTC, PT1000
Outputs	Relay, SSR
Storage Temperature	-30°C to +70°C
Analogue Outputs	4-20 mA, 0-10 V
Serial Communication	RS485, Modbus RTU
Relative Humidity	<90% RH non-condensing