Emerson EC2-391 用户手册

EC2-391_65136_EN_R01.doc

Replacement for 00

3 / 4

PCN: 865 022 21.09.2007

EC2-391 Display Case and Coldroom Controller

Operating Instructions

List of Parameters

/ DISPLAY

PARAMETERS

Min Max Unit Def. Custom

/1 Value to show

0 = Thermostat control temperature with Temp. alignment °C

1 = Air-in temperature °C
2 = Air-out temperature °C
3 = Alarm temperature °C
4 = Defrost termination temperature °C
5 = Coil-in temperature °C
6 = Coil-out temperature °C
7 = Calculated superheat °K
8 = Valve opening in %
9 = Displays defrost status

/2 Alarm suppression 0 = off, 1 = on

/5 Temperature Unit

0 = °C, 1 = °F

/6 Decimal point

0 = yes, 1 = no

/7 Display during defrost

0 = dF (= defrost mode); 1 = dF + defrost termination temp.

2 = dF + control temperature

/C Temperature alignment for /1=0

-20

K / °F 0.0

A ALARM-PARAMETERS

A0 Mean factor alarm temperature

100

A1 Low temp alarm delay

180

min

A2 High temp alarm delay

180

min

A3 Alarm delay after defrost

180

min

High temp alarm limit

°C / K

AL Low temp alarm limit

-55 AH °C / K -50

At Alarm limit type

0=absolute temperatures °C; 1= relative temperatures K to setpoint

r THERMOSTAT-PARAMETERS

r1 Min setpoint

-50 r2

°C

-50

r2 Setpoint max

r1 60

°C

r3 Day/night control

0 = off, 1 = on

r4 Thermostat mode

0 = off, no thermostat function, continues cooling air in sensor monitoring

off, no temp. alarms generated

1 = cooling, deadband control:

cut in = set-point + difference

cut out = set-point

2 = cooling, modulating thermostat: cut in = set-point

cut out = set-point – difference /2

3 = heating, deadband control:

cut in = set-point – difference

cut out = set-point

4 = on, external control using nvi Valve via SNMP. Air in and air out sensor

monitoring off. Temp. alarms will be generated

r6 Setpoint night

r1 r2

°C

4.0

r7 Differential night

0.1 20.0

2.0

r8 Mean factor, day operation

100

r9 Mean factor, night operation

100

rd Differential day

0.1 20.0

2.0

St Setpoint day

r1 r2

°C

2.0

d DEFROST

PARAMETERS

d0 Defrost mode

0 = natural defrost, defrost heater not activated

pulsed defrost not possible

1 = forced defrost, defrost heater activated, pulsed

defrost possible

2 = forced defrost, defrost heater activated, pulsed defrost possible,

defrost termination using nviStartUp via SNMP

d1 Termination by:

0 = termination by temperature,

termination by time will generate an alarm

1 = termination by time,

termination by temperature will generate an alarm

2 = first, what ever comes first time or temperature, no alarm
3 = last, by time and temperature, no alarm

d2 Defrost termination sensor

0 = Dedicated defrost sensor must be installed

1 = Air-out sensor used for defrost termination

d3 Pulsed defrost

0 = off, no pulsed defrost, heaters switched off at defrost termination

temperature dt or max. time dP whatever is selected

1 = on, pulsed defrost, dd and dH in use, heaters are switched off at

dH and switched on again at dH – dd

d4 Defrost at startup

0 = no, 1 = yes

d5 Delay power up defrost

180

min

Min Max Unit Def. Custom

d6 Pump down delay

180

sec

Compressor will run during pump down delay while valve is closed

d7 Drain delay

min

d8 Injection delay

180

sec

Valve is open during injection delay while compressor is not running

d9 Demand defrost mode

0 = off, 1 = on, 2 = on together with
timed defrost

0 2 - 0

dd Pulsed defrost differential

dH Pulsed defrost setpoint

-40

°C

dt Defrost termination temperature

-40

°C

dP Max defrost duration

180

min

dI Defrost interval

192

du Start up delay after synch

180

min

F FAN-PARAMETERS

F1 Fan startup by:

0 = on

1 = delayed by time Fd, error on temperature

2 = by temperature Ft, error on time
3 = first, whatever comes first time or temperature, no alarm
4 = last, time and temperature must come, no alarm

F2 During no cooling

0 = on; 1 = off; 2 = delayed by F4; 3 = off, when door open

F3 During defrost

0 = on, 1 = off

F4 Stop delay time

min

F5 During cleaning

0 = off, 1 = on

Fd Fan delay after defrost

min

Ft On temp after defrost

-40

°C

u SUPERHEAT

PARAMETERS

u0 Refrigerant 0 = R22

1 = R134a

2 = R507

3 = R404A 4 = R407C

5 = R410A 6 = R124

7 = R744A

0 7 - 3

u1 Correction glide / dp

Glide = positive values
Pressure drop = negative values

-20.0 20.0

0.0

u2 MOP control

0 = MOP off, 1 = MOP on

0 1 - 0

u3 MOP temperature

-40

°C

u4 Superheat mode

0 = off

1 = fixed superheat
2 = adaptive superheat

0 2 - 1

u5 Superheat init setpoint

u6 Superheat setpoint min.

u7 Superheat setpoint max.

uu Start

opening

75 % 30

DIGITAL

INPUT

PARAMETERS

i0 S5 input

1 = inverse function

∩0 Functions for S5 0 = normal input

1 = cleaning

2 = only fan
3 = door contact
4 = permanent cooling

5 = day / night switch
6 = compressor safety chain
7 = defrost request
8 = defrost inhibited

DIGITAL

OUTPUT

PARAMETERS

o0 Output

1 = inverse function

n0 Functions for output 1 = alarm

H OTHER PARAMETERS

H2 Display access

0 = all disabled (Caution: access to controller only via LON

network possible)

1 = Keyboard enabled
2 = IR remote control enabled
3 = Keyboard and IR remote control; Temporary data display and

manual defrost enabled.

4 = Keyboard and IR remote control; Temporary data display

disabled. Control setpoint with SEL key and manual defrost
enabled.

H3 IR access code

199

H5 Password 0

199