Heatcraft Refrigeration Products Masterlog 4 Instruction Manual

Masterlog4

User Handbook

Masterlog 4 “Version 2”

(from the 11st march 2008)

Code +050004036 Rel. 1.0 – 11/03/2008 3

OPERATING INSTRUCTIONS

MASTERLOG 4 “Version 2”

The default parameter settings for the MASTERLOG 4 (bn1) are selected for operation with chilling evaporators

equipped with an air defrost system. For a different operating mode one of the following programs may be

selected:

‘bn1’= chilling with air defrost

‘bn2’= chilling with electrical defrost

‘bn3’= refrigeration with electrical defrost

‘bn4’= ambient chilling with air defrost

‘bn5’=‘bn2’ with 2 evaporators

‘bn6’=‘bn3’ with 2 evaporators

”DO NOT USE ‘bn0’”

Proceed as follows to select one of these programs:

1. Switch off the Masterlog4.

2. Switch the Masterlog4 back on again while simultaneously pressing the “prg” button until the value ‘bn0’

appears.

3. Select the program required using the “up” and “down” keys

4. Press “set” to confirm the selection.

”Set” Key ”prg” Key “Up/Down” Keys

ATTENTION:

¾The defrost parameters [‘dI’: interval between 2 defrosts, ‘dT’: temperature at end of defrost (electrical) and ‘dP’:

maximum defrost duration] are factory-set values. Depending on use of the cold storage room, these parameters

must be modified to ensure correct defrosting of the evaporator.

¾To carry out a manual defrost cycle, press the “defrost” key for more than 5 sec.

¾The MASTERLOG 4 relays are “potential-free” contacts. To supply these contacts, it is essential to connect

terminals 1, 4, 7 and 10 as well as aux. terminals 13 and 16 if necessary (refer to the electrical wiring diagram

enclosed with the products).

¾The MASTERLOG 4 possesses three configurable inputs (terminals 22/23, 24/25 et 26/27). Input n°1

(terminals 22 and 23) may be set as an external alarm coming from the unit (parameter A4=1, except

application 2 evaporators). Some units are equipped with a standard ‘fault contact’ (refer to wiring diagram).

We recommend you connect this alarm contact to the MASTERLOG 4.

¾If the keypad is locked, modify the parameter H2 (H2=1).

IMPORTANT: Standard and modified parameters are saved in case of an electrical power failure. When

downloading a program, these values are reset in compliance with the basic parameter setting chart.

Code +050004036 Rel. 1.0 – 11/03/2008 4

1 - Wiring

Sensors: 18 - 19 Ambient probe (PROBE 1)

20 - 21 End of defrost probe (PROBE 2)

Digital inputs: 22 - 23 Digital input 1 (DI 1) - Parameters A4

24 - 25 Digital input 2 (DI 2) - Parameters A5

26 - 27 Digital input 3 (DI 3) - Parameters A9

Auxiliary: 13 - 14 AUX 1 – Parameters H1

16 - 17 AUX 2 – Parameters H5

Wiring RS485: 28 GND

29TX/RX+

30TX/RX-

Relay characteristics: Refer to chapter 8. Technical characteristics

R1=30A

R2=16A

R3=8A

R4=8A

R5=16A

Code +050004036 Rel. 1.0 – 11/03/2008 5

2 - Display

Symbols Colour Meaning with the symbol

illuminated Meaning with the symbol

blinking

Amber

Compressor operational

Compressor in standby and ready

to start

Amber

Condenser fan operational

Condenser fan in standby and

ready to start

Amber

Defrost in progress

Condenser fan in standby and

ready to start

AUX Amber Auxiliary output set as AUX output Heating element blocking function

enabled at start up

(Option) Yellow At least 1 defrost is programmed in

real time

Red External alarm delayed Alarm present or alarm on digital

input immediate or delayed

Red

Malfunction (e.g. probe

disconnected)

Amber Auxiliary output set as heater Heating element blocking function

enabled at start up

Amber Activation of a continuous cycle Continuous cycle cannot be

enabled

(Option) Red HACCP function enabled New HACCP alarm memorised

Code +050004036 Rel. 1.0 – 11/03/2008 6

3 - Parameters:

3-1 . Access to parameters:

Modify the set point only

Press and hold SET for 1 second Use the up and down keys to modify the set

point

Press SET to confirm the

value

Access to all parameters

Press and hold PRG and

SET at the same time for

5 seconds

"00" is displayed Use the up and down keys to select

“22” Press SET

Save parameters Do not save parameters Cancel an alarm Manual defrost

Press and hold PRG for 5

seconds

Do not press any other

keys for 60 seconds until

the display returns to the

temperature value

Press PRG Press and hold DEF

for 5 seconds

Code +050004036 Rel. 1.0 – 11/03/2008 7

3-2 . Rotation of the parameters list menu

‘Set’= to access or quit a parameter

‘Set’= to access a block

‘Prg’= to quit a block

5s Probe

Control

Compresso

Defrost

Alarm

Fan

Confi

uration

HACCP

(OPTION)

Time ran

Code +050004036 Rel. 1.0 – 11/03/2008 8

4- List of parameters:

The parameters may vary depending on the model of MD33

/: Probe parameters

Display Parameter and description Measurement

unit Min Max Bn

1 Bn

2 Bn

3 Bn

4 Bn

5 Bn

/2 Probe measurement delay

1=immediate response

15=delayed response - 1 15 4 4 4 4 4 4

/3 Probe display speed

0=slow

15=fast - 0 15 0 0 0 0 0 0

/4 Virtual probe (between probe 1 and probe 2)

0=Setting of probe 1

50=average between probe 1 and probe 2

100=Setting of probe 2

- 0 100 0 0 0 0 0 0

/5 Selection °C or °F

0=°C

1=°F Select 0 1 0 0 0 0 0 0

/6 Display decimal point

0=Yes

1=No

Select 0 1 0 0 0 0 0 0

/tI

Selection of probe to be displayed on controller

1=virtual probe

2=probe 1

3=probe 2

4=probe 3

5=probe 4

6=probe 5

7=set point

- 1 7 2 2 2 2 2 2

Selection of probe to be displayed on a remote

display

0=no remote display present

1=virtual probe

2=probe 1

3=probe 2

4=probe 3

5=probe 4

6=probe 5

- 0 6 0 0 0 0 0 0

/P Selection of probe type

0=standard NTC (black probe)

1=high-temperature NTC (beige probe)

2=PTC

- 0 2 0 0 0 0 0 0

/A2

Configuration of probe 2

0=probe 2 absent or not used

1=product probe (used for display)

2=defrost probe

3=condensation probe

4=anti-frost probe

- 0 4 0 2 2 0 2 2

/A3

Configuration of probe 3 / digital input 1

Same as probe 2 - 0 4 0 0 0 0 2 2

/A4 Configuration of probe 4 / digital input 2

Same as probe 2 - 0 4 0 0 0 0 0 0

/A5 Configuration of probe 5 / digital input 3

Same as probe 2 - 0 4 0 0 0 0 0 0

/c1 Calibration of probe 1 °C/°F -20 20 0 0 0 0 0 0

/c2 Calibration of probe 2 °C/°F -20 20 0 0 0 0 0 0

/c3 Calibration of probe 3 °C/°F -20 20 0 0 0 0 0 0

/c4 Calibration of probe 4 °C/°F -20 20 0 0 0 0 0 0

/c5 Calibration of probe 5 °C/°F -20 20 0 0 0 0 0 0

Code +050004036 Rel. 1.0 – 11/03/2008 9

r: Setting parameters

Display Parameter and description Measurement

unit Min Max Bn

1 Bn

2 Bn

3 Bn

4 Bn

5 Bn

St Temperature set point °C/°F r1 r2 4 0 -18 12 0 -18

rd Differential °C/°F 0.1 20 2 2 2 1 2 2

rn Dead zone °C/°F 0.0 60 2 2 2 1 2 2

rr Hot differential relay (with dead zone) °C/°F 0.1 20 2 2 2 1 2 2

r1 Minimum set point value entered by user °C/°F -50 r2 1 -5 -25 2 -5 -25

r2 Maximum set point value entered by user °C/°F r1 200 20 8 -5 20 8 -5

r3 Operating mode

0=direct thermostat (cold) with defrost

1=direct thermostat (cold) without defrost

2=reverse thermostat (hot)

Select 0 2 0 0 0 0 0 0

r4 Variation of set point during nocturnal operation

(stn=st+r4)

°C/°F

-20

20 3 3 3 3 3 3

r5 Authorise recording of min. and max.

temperature values

0=not authorised

1=authorised

Select 0 1 0 0 0 0 0 0

rt Interval between temperature recordings Time 0 999 - - - - - -

rH Maximum temperature recorded °C/°F - - - - - - - -

rL Minimum temperature recorded °C/°F - - - - - - - -

c: Compressor parameters

Display Parameter and description Measurement

unit Min Max Bn

1 Bn

2 Bn

3 Bn

4 Bn

5 Bn

c0 Delay compressor and fan start up when the

controller is switched on Min 0 15 1 1 1 1 1 1

c1 Minimum time between 2 consecutive start ups

of the same compressor Min 0 15 6 6 6 6 6 6

c2 Minimum compressor stoppage time Min 0 15 0 0 0 0 0 0

c3 Minimum compressor running time Min 0 15 2 2 2 2 2 2

c4 Compressor running duration in case of probe

alarm (continuous cycle) Min 0 100 15 15 15 15 15 15

cc Continuous cycle duration Time 0 15 4 4 4 4 4 4

c6 Temperature alarm exclusion time after a

continuous cycle

Time 0 15 2 2 2 2 2 2

c7 Maximum Pump-Down time (vacuum

generation) Sec 0 900 0 0 0 0 0 0

c8 Compressor delayed start up after opening the

Pump-Down valve Sec 0 60 0 0 0 0 0 0

Authorisation of auto-start function during

Pump-Down

0= when the valve is closed

1= each time the valve is closed + LP pressure

switch request when no cooling request is present

Select 0 1 0 0 0 0 0 0

c10 Pump-Down operation in time or in pressure

0=Pump-down in pressure with maximum time

1=Pump-down in time Select 0 1 0 0 0 0 0 0

c11 Active list of parameters (n° of ‘bn’ ) Sec 0 250 1 2 3 4 5 6

Code +050004036 Rel. 1.0 – 11/03/2008 10

d: Defrost parameters

Display Parameter and description Measurement

unit Min Max Bn

1 Bn

2 Bn

3 Bn

4 Bn

5 Bn

Type of defrost

0=defrost with elec. element ends with

temperature or time

1=defrost with hot gas ends with temperature or

time

2=defrost with elec. element ends with time

3=defrost with hot gas ends with time

4= defrost with elec. element ends with time or

temperature (if defrost ends with time ED1 and ED2

are not displayed)

Select 0 4 2 0 0 2 0 0

dI Interval between 2 defrosts Time 0 250 8 8 6 12 8 6

dt1 Temperature at end of evaporator defrost °C/°F -50 200 4 4 4 4 4 4

dt2 Temperature at end of aux. evaporator defrost °C/°F -50 200 4 4 4 4 4 4

dP1 Maximum evaporator defrost duration Min 1 250 45 45 30 45 45 30

dP2 Maximum aux. evaporator defrost duration Min 1 250 45 45 30 45 45 30

d3 Delayed defrost activation Min 0 250 0 0 0 0 0 0

d4 Defrost when the controller is switched on

0=no

1=yes

Select 0 1 0 0 0 0 0 0

d5 Delay defrost when the controller is switched on Min 0 250 120 240 240 120 240 240

d6 Block display during defrost

0=alternating display of temperature and DEF

1=display temperature present before defrost

2=always display DEF

- 0 2 2 2 2 2 2 2

dd Dripping duration after defrost Min 0 15 0 4 4 0 4 4

d8 High-temperature alarm (AH) exclusion duration

after defrost and/or door open Time 0 15 1 1 1 1 1 1

d8d Alarm timer after door opening (alarm “dor”) Min 0 250 2 2 2 2 2 2

d9 Priority defrost for delayed compressor

start/stop

0=respected

1=not respected (priority defrost)

Select 0 1 0 0 0 0 0 0

d/1 Read defrost probe 1 °C/°F - - - - - - - -

d/2 Read defrost probe 2 °C/°F - - - - - - - -

dC Defrost duration time base

0=hours/minutes

1=Minutes/seconds Select 0 1 0 0 0 0 0 0

d10

Smart defrost: Compressor running time with an

evaporator temperature below D11 to start

defrost

0=function disabled

>0 =running time

dC 0 250 0 0 0 0 0 0

d11 Temperature threshold for smart defrost °C/°F -20 20 1 1 1 1 1 1

d12

Auto-adaptive advanced defrost

0=skip defrost disconnected, automatic variation

disconnected

1=skip defrost disconnected, automatic variation

connected

2= skip defrost connected, automatic variation

disconnected

3= skip defrost connected, automatic variation

connected

- 0 3 0 0 0 0 0 0

dn Average defrost duration in percentage in

relation to dt1 or dt2 - 1 100 65 65 65 65 65 65

dH Proportional variation factor of dI - 0 100 50 50 50 50 50 50

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