Emerson EC2-391 user manual List of Parameters, Min Max Unit Def

EC2-391 Display Case and Coldroom Controller

Operating Instructions

GB

List of Parameters

/	DISPLAY PARAMETERS					Min		Max	Unit	Def.	Custom
/1	Value to show					0		9	-	0
	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			0		1	-	0
/5	Temperature Unit		0 = °C, 1 = °F			0		1	-	0
/6	Decimal point		0 = yes, 1 = no			0		1	-	0
/7	Display during defrost					0		2	-	0
	0	= dF (= defrost mode); 1 = dF +				defrost termination temp.
			2 = dF + control temperature
/C	Temperature alignment for /1=0					-20		20	K / °F	0.0
A	ALARM-PARAMETERS
A0	Mean factor alarm temperature					0		100	%	100
A1	Low temp alarm delay					0		180	min	5
A2	High temp alarm delay					0		180	min	5
A3	Alarm delay after defrost					0		180	min	10
AH	High temp alarm limit					AL		70	°C / K	40
AL	Low temp alarm limit					-55		AH	°C / K	-50
At	Alarm limit type					0		1	-	0
	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	40
r3	Day/night control		0 = off, 1 = on			0		1	-	1
r4	Thermostat mode					0		4	-	1
	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	K	2.0
r8	Mean factor, day operation					0		100	%	100
r9	Mean factor, night operation					0		100	%	50
rd	Differential day					0.1		20.0	K	2.0
St	Setpoint day					r1		r2	°C	2.0
d	DEFROST PARAMETERS
d0	Defrost mode					0		2	-	1
	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		3	-	0
	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		1	-	1
	0	= Dedicated defrost sensor must be				installed
	1	= Air-out sensor used for defrost termination
d3	Pulsed defrost					0		1	-	0
	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			0		1	-	0
d5	Delay power up defrost					0		180	min	0
EC2-391_65136_EN_R01.doc					Replacement for 00

						Min	Max		Unit		Def.	Custom
d6	Pump down delay					0	180		sec		0
	Compressor will run during pump down					delay	while	valve is		closed
d7	Drain delay					0	15		min		2
d8	Injection delay					0	180		sec		0
	Valve is open during injection delay while compressor is not running
d9	Demand defrost mode					0	2		-		0
	0	= off, 1 = on, 2 = on together with
	timed defrost
dd	Pulsed defrost differential					1	20		K		2
dH	Pulsed defrost setpoint					-40	dt		°C		5
dt	Defrost termination temperature					-40	90		°C		8
dP	Max defrost duration					0	180		min		30
dI	Defrost interval					0	192		h		8
du	Start up delay after synch					0	180		min		30
F	FAN-PARAMETERS
F1	Fan startup by:			0 = on		0	4		-		0
	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	3		-		0
	0	= on; 1 = off; 2 = delayed by F4; 3 =				off, when door open
F3	During defrost			0 = on, 1 = off		0	1		-		0
F4	Stop delay time					0	30		min		0
F5	During cleaning			0 = off, 1 = on		0	1		-		0
Fd	Fan delay after defrost					0	30		min		0
Ft	On temp after defrost					-40	40		°C		0
u	SUPERHEAT PARAMETERS
u0	Refrigerant		0 = R22		1 = R134a	0	7		-		3
	2	= R507 3 = R404A			4 = R407C
	5	= R410A	6 = R124		7 = R744A
u1	Correction glide / dp					-20.0	20.0		K		0.0
	Glide		= positive		values
	Pressure drop = negative values
u2	MOP control					0	1		-		0
	0	= MOP off, 1 = MOP on
u3	MOP temperature					-40	40		°C		0
u4	Superheat mode			0 = off		0	2		-		1
	1	= fixed superheat
	2	= adaptive superheat
u5	Superheat init setpoint					u6	u7		K		6
u6	Superheat setpoint min.					3	u7		K		3
u7	Superheat setpoint max.					u6	20		K		15
uu	Start opening					25	75		%		30
	DIGITAL INPUT PARAMETERS
i0	S5 input		1 = inverse function			0	1		-		0
∩0	Functions for S5 0 = normal input					0	8		-		0
	1	= cleaning			5 = day / night switch
	2	= only fan			6 = compressor safety chain
	3	= door contact			7 = defrost request
	4	= permanent cooling			8 = defrost inhibited
	DIGITAL OUTPUT PARAMETERS
o0	Output		1 = inverse function			0	1		-		0
n0	Functions for output			1 = alarm		0	1		-		0
H	OTHER PARAMETERS
H2	Display access					0	4		-		3
	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					0	199		-		0
H5	Password					0	199		-		12

3 / 4 PCN: 865 022 21.09.2007