Libretto MIR90 03-A - Jotnor Oy
Libretto MIR90 03-A - Jotnor Oy
Libretto MIR90 03-A - Jotnor Oy
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9. PARAMETER DEFAULT VALUES<br />
UK<br />
defrost by defrost by defrost by<br />
AIR HOT GAS HEATERS<br />
Label Description Range level H-A M-N B-K M-N B-K<br />
REGULATION<br />
Set Set point LS ÷ US Pr 1 --- --- --- --- ---<br />
HY Differential SET (principal) 0,1 ÷ 25,5 °C/°F Pr 1 2 2 2 2 2<br />
LS Minimum set point -50,0 °C/°F ÷ Set Pr 1 5 -5 -25 -5 -25<br />
US Maximum set point Set ÷ 110,0 °C/°F Pr 1 15 5 -18 5 -18<br />
OdS Output activation delay at start-up 0 ÷ 255 min Pr 1 0 0 0 0 0<br />
AC Anti-short cycle delay 0 ÷ 30 min Pr 2 2 2 2 2 2<br />
Con Compressor ON time with faulty probe 0 ÷ 255 min Pr 2 0 0 0 0 0<br />
CoF Compressor OFF time with faulty probe 0 ÷ 255 min Pr 2 0 0 0 0 0<br />
PROBES AND DISPLAYS<br />
CF Display Celsius/Fahrenheit °C ÷ °F Pr 2 °C °C °C °C °C<br />
rES Resolution (of °C): integer, decimal in ÷ de Pr 2 In In In In In<br />
DEFROST<br />
tdF Defrost type rE, rt, in Pr 1 rE In In rE rE<br />
EdF Defrost mode: hour, interval, Smart-def in ÷ Sd Pr 2 Sd Sd Sd Sd Sd<br />
dtE Defrost termination temperature -50,0 ÷ +110,0 °C/°F Pr 1 110 20 20 30 30<br />
IdF Defrost Interval 1 ÷ 120 h Pr 1 3 3 3 3 3<br />
MdF Maximum defrost duration 0 ÷ 255 min Pr 1 20 20 20 30 30<br />
dFd Display during defrost rt, it, Set, dEF, dEG Pr 2 rt rt rt rt rt<br />
dAd Temperature display delay after defrost 0 ÷ 255 min Pr 2 0 0 0 0 0<br />
Fdt Drain time 0 ÷ 60 min Pr 1 0 2 2 2 2<br />
FANS<br />
FnC Fans operating mode C_n, C_y, O_n, O_y Pr 1 O_y O_n O_n O_n O_n<br />
Fnd Fan activation delay after defrost 0 ÷ 255 min Pr 1 0 3 3 3 3<br />
FSt Fan stop temperature -50,0 ÷ +110,0 °C/°F Pr 1 40 40 40 40 40<br />
ALARMS<br />
ALC Alarm configuration: relative / absolute rE ÷ Ab Pr 2 rE rE rE rE rE<br />
ALU Maximum temperature alarm -50,0 ÷ +110,0 °C/°F Pr 2 5 5 5 5 5<br />
ALL Minimum temperature alarm -50,0 ÷ +110,0 °C/°F Pr 2 5 5 5 5 5<br />
AFH Alarm and fan set differential 0,1 ÷ 25,5 °C; 1 ÷ 25 °F Pr 2 2 2 2 2 2<br />
ALd Temperature alarm delay (normal operating) 0 ÷ 255 min Pr 2 0 0 0 0 0<br />
dAo Temperature alarm delay at start-up 0 ÷ 24 h Pr 1 3 3 4 3 4<br />
EdA Temperature alarm delay at defrost end 0 ÷ 255 min Pr 2 60 60 60 60 60<br />
dot Door opening alarm override 0 ÷ 255 min Pr 2 60 60 60 60 60<br />
doA Open door alarm delay 0 ÷ 255 min Pr 2 10 10 10 10 10<br />
tbA Alarm relay switching off n ÷ y Pr 2 y y y y y<br />
nPS No. of pressure switch trippings (did time) 0 ÷ 15 Pr 2 10 10 10 10 10<br />
ANALOG INPUTS<br />
ot Probe 1 calibration -12,0 ÷ +12,0 °C/°F Pr 2 0 0 0 0 0<br />
oE Probe 2 calibration -12,0 ÷ +12,0 °C/°F Pr 2 0 0 0 0 0<br />
P2P Probe 2 presence n ÷ y Pr 1 n y y y y<br />
DIGITAL INPUTS<br />
odc Open door control: fans and compressor no, Fan, CPr, F_C Pr 2 F_C F_C F_C F_C F_C<br />
did Digital input 1 counting interval time 0 ÷ 255 min Pr 2 60 60 60 60 60<br />
LdE Light switching off delay after deactivation 0 ÷ 255 min Pr 2 0 0 0 0 0<br />
OTHER<br />
Adr Address 1 RS485 0 ÷ 247 Pr 1 1 1 1 1 1<br />
rEL Firmware release code (reading only) --- Pr 2 --- --- --- --- ---<br />
Ptb Parameter table --- Pr 2 --- --- --- --- ---<br />
10. GENERAL DESCRIPTION<br />
The <strong>MIR90</strong> electronic control panel has two inputs for probes which control the cold room temperature and the defrost. It has also two free<br />
digital inputs not to be supplied that act as door microswitch and pressure switch. The alarm conditions are signalled by an output of<br />
0-12V/20mA.<br />
7
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