Zanotti DFZ User manual

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DFZ
Cabin Control
Description and operation

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Index
1. Description of the control unit
1.1. Switching on the control unit
1.2. Diesel operation setting-up
1.3. Setting-up of the operation set point
1.4. Evaporator enable and disable
(only Multi-temperature Version)
1.5. Refrigerating group switching on
1.6. Manual de-frosting
1.7. Alarms
1.8. Alarm list
1.9. Alarm description
1.10. Diesel operation de-activation (Motor blockage)
1.11. Service
1.12. Maintenance
1.13. Input in programming
1.14. List of sections
1.15. Digital inputs management
1.16. Digital outputs management
1.17. Clock configuration
1.18. Maintenance parameters
1.19. Probe parameters
1.20. Configuration
1.21 Driver’s screen
1.22. Reset of maintenance messages
1.23. reset of operation hours of diesel or electrical motor’s operation
2. Tables of parameter programming

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1. Description of the control unit
DFZ ZANOTTI’s refrigerating groups are provided with a microprocessor electronic controller (cabin control) which au-
tomatically controls the operation. In particular, the electronic controller superintends the activation and deactivation
of the diesel electric motor, in accordance with the preset temperature. The operation selection (diesel or electric) is
automatically performed by connecting the plug to the mains.
1.1. Switching on the control unit
To switch on the equipment press the first key on the
right ( On/Off ) until the display is switched on.
The same procedure should be performed to switch
off the keyboard.
After the presentation screen the unit state is displa-
yed.
Press the key to switch the refrigerating group
on/off, while the display is lit.
Standard
Eletrical operation Diesel operation
Multi-temperature
n° 2 Evaporators n° 3 Evaporators

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1.2. Diesel operation setting-up
By pressing the key you can select the type of operation:
• Automatic (start/stop); the unit switches on/off in accordance with the preset temperat. (Setpoint).
• Continuous; the temperature is kept without switching off the motor.
By pressing the key you can select high or low speed (only for the start/stop operation).
ATTENTION
The switching from diesel to electric is automatically performed any time the machine is connected to the electrical
mains and is powered. If during the electrical operation a power failure occurs after about 5 minutes the machine
restarts by diesel.
1.3. Setting-up of the operation set point
To set up the operation set press the key, the screen will be displayed:
Standard
Press the keys to decrease or increase the value
Multi-temperature
n° 2 Evaporators n° 3 Evaporators
Press the Keys to move among the Set point (SP..)
Press the keys to decrease or increase the value.
To return to the main screen press the key.
1.4. Evaporator enable and disable (only Multi-temperature Version)
To enable or disable an evaporator press the
key.
To move to the side screen

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By pressing the key you enter the evaporator’s enable and disable screen.
n°2 Evaporators n°3 Evaporators
Through the keys, select the evaporator to be disabled or enabled and press the key to change its
state. To return to the main screen press the key.
The main screen will be displayed through a note which indicated the disabled evaporator.
n°2 Evaporators n°3 Evaporators
1.5. Refrigerating group switching on
Press the key to switch the refrigerating group on/off, while the display is lit.
1.6. Manual de-frosting
From the main screen press the key for 5 seconds. The
de-frosting activation is affected by the closure of the de-frosting end
thermostat ( clixon ). During the de-frosting phase the icon will
de displayed and simultaneously the key will start flashing. Once the
de-frosting cycle is over the dipping phase starts with unit stopped and
flashing display.

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1.7. Alarms
There are three types of alarm signalling:
1) Only display
2) Blockage with automatic restoring
3) Blockage with manual restoring
1) When an only display alarm occurs the icon is displayed on the main display to indicate the presence
of an alarm as shown. The alarm is also signalled through the buzzers
located on both the unit and the controller.
Press once the key to deactivate the controller buzzer. Press again
the key to display the type of alarm signalled. The icon indica-
tes the alarm state, if the alarm is still active. To de-activate the buzzer
of the unit press the key. To de-activate the display signalling, re-
storing the default state, press again the state. To return to the
main screen press the Key . If the alarm automatically ceases
the acoustical signalling is de-activated but the display signalling remains
active, to reset enter the alarm screen and press the , key, to
restore the default state. To return to the main screen press the
key.
2) When an automatic restoring alarm occurs all that concerns the only display alarms is valid, but the refrigera-
ting automatically stops and restarts if the alarm ceases.
3) When a manual restoring alarm occurs the icon and the Blocked wording are displayed. Also in this case
the buzzers are activated.
• Press two times the key to access the screen where the type of
alarm is signalled.
• When the cause of the alarms ceases. By pressing the key
the “no alarm” screen is displayed The icon in the blocked state
remains lit even when the alarm ceases.

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•Press the key to return to the main screen.
• When the alarm ceases press the Key to start the unit.
1.8. Alarm list
Cod Description Type of restoring
A01 Environment probe failure Manual
A05 Oil level alarm Only display
A06 Air filter alarm Only display
A07 Water temperature alarm Manual
A08 Microdoor Automatic
A09 Open door Automatic
A10 Oil pressure alarm Manual
A11 Maximumm pressostat alarm Automatic
A12 High temperature alarm Only display
A13 Low temperature alarm Only display
A14 Thermal protection Automatic
A15 Low battery level Manual
A16 Start failed Manual
A17 Alternator failure Manual
A18 Pre-heat water probe failure Only display
1.9. Alarm description
A01 Enviroment probe failure alarm
This alarm causes the machine to stop permanently until the failure is repaired. To re-start the machine, you should
reset alarm following procedure described in the above-mentioned paragraph and press the on/off key.
A04/11 Pressostat alarm
It occurs for a maximum or minimum pressostat intervention. The causes for the intervention of the maximum presso-
stat may be due to an inappropriate cleaning of the condenser or a slackening of the condenser fan belts, The inter-
vention of the minimum pressostat may be due to Freon leakage. The intervention produces the machine stop until
the alarm disappears.
A05 Oil level alarm
It is an only signalling alarm which does not affect the machine operation
A06 Air filter alarm
It is an only signalling alarm which does not affect the machine operation
A07 Water temperature alarm
It occurs when the radiator water temperature exceed the allowed value. It causes the diesel motor to stop. To re-
start the machine you should reset the alarm following the procedure described in the above-mentioned paragraph
and press the on/off key.

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A08 Open micro door alarm
If occurs if the door of the motor room is opened. This alarm prevents the motor start.
A09 Open door alarm
It signals, if the micro-door is provided, the opening of the door of the load room.
A10 Oil pressure alarm
This alarm occurs in case the pressure of the motor oil drops; it causes the diesel motor to stop permanently. To re-
start the machine you should reset the alarm following the procedure described in the above-mentioned paragraph
and press the on/off key .
A12/13 Maximum/minimum temperature alarm
It occurs if the actual cell temperature and the one set by the control differ beyond limit the preset on the factory.
A14 Thermal relay alarm
It occurs in case of anomalous current absorptions of the electrical motor and causes the machine to stop. To reset
the alarm, activate the control unit, disconnect power from the machine, open the electrical panel and restore the
thermal relay. Power the machine again, and press the on/off key located on the cabin control.
A15 Low battery alarm
If during the start/stop operation, when the machine stops as the preset temperature (set-point) has been reached,
a battery voltage lower than 11 Volt for 10 seconds is detected, the re-start on continuous mode is forced.
A16/17 Start failure/ alternator failure
This alarm occurs if, when start attempts are completed (set in factory at 5) the diesel motor is not restarted. The
causes may be: failed alternator, slackened belts, no fuel, blocked motor. If the same alarm occurs during the electri-
cal operation the cause should be the alternator’s inappropriate operation . To restart the machine just reset the alarm
following the procedure described in the above-mentioned paragraph and press the on/off key.
A18 Pre-heat water probe failure alarm
It is an only signalling alarm which does not affect the machine operation.
1.10. Diesel operation de-activation (Motor blockage)
To activate the blockage to the operation with diesel motor press the key for some seconds until the
icon is displayed which indicates the impossibility of operation by diesel motor. Press the key to return to the
main screen.

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1.11. Service
• Press the key and you switch to the screen where the maintenance key is dispalyed.
• By pressing the key you can display the following information:
o Alternator voltage
o Battery voltage
o Water temperature
o Diesel motor hours
o Electric motor hours
1.12. Maintenance
The request for maintenance intervention is displayed in the main screen by the icon .
• If you press the key you switch to the screen where the key is displayed.
• If you press the you enter the screen where it is displayed the code relevant to the maintenance requi-
red intervention whose meaning is explained in an appropriate paragraph of this booklet.
If you press the key you will switch to the previous screen.

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1.13. Input in programming
To enter the programming perform the following procedure:
On the main, screen by pressing the key you switch to the screen
where the key is located
Press the key for five seconds and the password screen will be
displayed
Press the key and set through the number 11.
Press the key and then the key to enter the first program-
ming screen. For the navigation among the various screens use the
keys, for the shifting in
the sections press the
keys. To select the required section, highlight it, then press the
key to access it. Press the key and you will return to the previous
screen.
1.14. List of sections
The sections in the programming branch are:
• Adjustment parameters
• De-frosting parameters
• Alarm parameters
• Switching on parameters
• Digital inputs management
• Digital outputs management
• Clock configuration
• Maintenance configuration
• Probe configuration
• Configuration
To programme the parameters, listed in the specific table, first press the keys through which you can
switch from one screen to the other, in order to identify the parameter to be modified.
Press the keys to highlight the value of the parameter to be modified, then press the key and then
keys to modify its value, confirm its modification through the key. If you press the key you
will switch to the previous screen.
1.15. Digital inputs management
If you enter this section you can display the screen. The labels located in
correspondence of each digital input from the left represent : the current
state, the logic, (active in opening “op” or active in closure “cl”), the ena-
ble “en” or disable “dis”. You can both programme the logic and enable
any input; for this purpose, starting form the initial screen identify the
input to be modified by operating on the keys through which you can switch from one screen to the other.
When the required input is identified press the keys until the parameter to be modified is highlighted; then
press the key to modify the value. Press the key and you will switch to the previous screen.

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1.16. Digital outputs management
When you enter this section you can display the screen. The labels locate-
din correspondence of each output from the left represent: if they are in au-
tomatic “aut” or in manual “man”, the on/off logic (when they are in manual),
the present state. You can modify the state of each output by setting to
manual and then forcing to on or off; to do it from the initial screen identify
the output to be modified by operating on the keys through which you can switch
from one screen to the other. When the required output is identified press the and keys until the exit
state to be modified is highlighted and press the key to switch it to manual. To modify its value switch to
the parameter on the side by pressing and then to force on or off. Press the key to switch to the
previous screen.
1.17. Clock configuration
If you enter this section you can display the screen
ress the key and then the an to modify the value of the
selected parameter: press again to confirm.
If you press the key you will switch to the previous screen.
1.18. Maintenance parameters
If you enter this section you can display the screen
In this screen you can set the maintenance thresholds and the maintenan-
ce codes which later will be shown at user level.
To programme the duration of a threshold press the and keys
until the required one is highlighted, then press and then
and to modify its values, press again to confirm. To modify
the code perform the same procedure once the required code has been
highlighted. If you press the key you will switch to the previous screen.
1.19. Probe parameters
In these masks configure some parameters which are represented in the table below:
P2P OFF Evaporator probe is provided
P3P OFF Condenser probe is provided
Csa 0 Environment probe adjustment
CF °C Unit of measurement °C/°F
The programming of these parameters is always performed like the others
1.20. Configuration If you enter this section you can display the screen
n this screen you can set
the duration of the retro-illumination
the contrast
the language
take into account that if the 201 value is set, the retro-illumination is
always on

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In the subsequent screen you can set:
The password to activate the driver’s mode
The control unit configuration : Standard, multi-temperature, trailer.
The two subsequent masks are information masks relevant to the software configuration
In this section you can also save or download on hot key (through input on the power card) the machine configura-
tion or you can re-set the default values. For this purpose, press the key, and you will access the screen under
which the various functions are shown.
Press the key to switch to the previous screen.
1.21 Driver’s screen
To set the driver’s screen simultaneously press the keys + keys for five seconds, now the screen will be
displayed.
Press the key and set through the key, number 4 and press
again and then . Through this procedure the main screen will
be the one below.
To return to the standard configuration press the keys + the key on
the right of for five seconds.
Press the key and set through the key, number 4 and press
again and then . Through this procedure you return to the
standard configuration.

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1.22. Maintenance messages reset
When on the main screen appear the icon is displayed, by pressing
the maintenance key, for example, the screen will be displayed.
To reset this information press the , key, the screen will be displa-
yed.
Press the key and set through the arrow up, set number 3 and
press again and then in this way the maintenance request is
reset.
1.23. Hour reset of diesel or electric motor’s operation
Access the service screen by pressing the key . Press the
key until the screen below is displayed.
Press the key for some seconds. The screen below will be
displayed.
Press the key and through the arrow set both number 11 and press
again and then , the previous screen with the value of hours
highlighted will be displayed. Press the key and the to
reset the operation hours, press again to confirm. Press the
key to switch to the previous screen.

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Parameters table DFZ Standard
PSWUTE 4 Password Driver 0 65535
PSWCOST 11 Password Service 0 65535
Regulation parameters
Code Value Description Control cab message MIN MAX UDM
dF1 2,0 Diesel running temperature differential Diesel differential 1,0/1 10,0/50 °C/°F
dF2 2,0 Stand-by running temperature differential Electrical standby differential 1,0/1 10,0/50 °C/°F
min -30,0 Minimum temperature set point Minimum set point -50,0/-58 MAS °C/°F
MAS 25,0 Maximum temperature set point Maximum set point Min 50,0/122 °C/°F
Defrosting parameters
Code Value Description Control cab message MIN MAX UDM
tEb 60 Temperature alarm exclusion time after defrosting end Temp alarm delay 0 999 Minuti
tMS 15 Maximum defrosting time Maximum duration 1 60 Minuti
tPS Airs Defrosting type Defrost type probe clixon
tFS 12,0 Defrosting end temperature End Defrost Temp. 5,0/41 20,0/68 °C/°F
tSS 120 Time between following defrostings Defrosts interval 1 999 Minuti
btS NO Block of desplayed temperature during defrosting Temp. Lock no si Flag
tGo 0 Dripping time Dripping time 0 99 minuti
Svb OFF Fans state during defrosting Fans status ON OFF flag
trE 1 Evaporator fans starting delay after defrosting end Fans delay 0 99 minuti
Alarm parameters
Code Value Description Control cab message MIN MAX UDM
AH 50,0 High temperature alarm High Temperature 0,0/-58 99,0/210 °C/°F
AL 50,0 Low temperature alarm Low Temperature 0,0/-58 99,0/210 °C/°F
Ad 2,0 alarm differential? Alarm Differential 0,0/-58 99,0/122 °C/°F
rAo 15 Oil alarm exclusion time after starting Oil alarm delay 0 999 Sec
tRA 10 Starting delay after engine water temperature resetting Reset water alarm 0 999 sec
tRO 10 Starting delay after microdoorswitch alarm resetting Restart door microswitch 0 999 sec
tAB 10 Starting alarm presence time Starting Alarm Delay 0 99 Sec
tEr 120 temperature alarm exclusion time after starting Temp alarm delay 0 999 Minuti
tPO 10 Starting delay after pressure switches and battey alarms resetting Press/batt reset 0 999 sec
tbm 10 Maximum time below minimum tension, allowed before relative alarm displaying Low battery delay 0 999 sec
Starting parameters
Code Value Description Control cab message MIN MAX UDM
Vbm 11,0 minimum battery voltage allowed before automatic switching to continuos running mode Min. battery voltage 0 20,0 V
Vam 10,0 Minimum alternator voltage allowed during temperature regulation phase Reg. alt. Voltage 0 13,0 V
VAM 11,0 Minimum alternator voltage allowed during starting Starting alt. Voltage 0 13,0 V
VEM 12,0 Minimum alternator voltage allowed during starting and running in stand-by mode Electrical alt. Voltage 0 13,0 V
nga 0 Rpm during starting Starting Rpm 0 5000 100*giri/s
ngf 0 Rpm during regulation Running Rpm 0 5000 100*giri/s
ngd 0 Rpm difference between the two revolutions counter Running Rpm 0 5000 100*giri/s
SPr SI Pre-heating probe presence Sensor pre-heating presence NO SI flag
tPr 15 Pre-heating time pre-heating time 0 99 Sec
Ct1M 32 Maximum delay before regulation Max delay reg. 0 999 sec
Ct1m 12 Minimum delay before regulation Min delay reg. 0 999 sec
Tmax 60,0 Maximum temperature detectable from water probe Water Max Temp. -55,0/-67 11,0/230 °C/°F
Tmin 0,0 Minimum temperature detectable from water probe Water Min. Temp. -55,0/-67 11,0/230 °C/°F
Ct1 30 Regulation phase delay after starting Regulation delay 1 100 Sec
tPA 6 Starting procedure allowable time Starting process time 1 240 Sec
tmo 0 Minimum running time Minimum Time 0 999 sec
tPM 5 Starting attempts number Start attempt 0 10
2. Parameters table DFZ Standard

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tAA 10 High speed running time during starting procedure Acceleration time 0 99 Sec
tPt 2 Delay between following startings Starting interval 0 99 Sec
tMt 300 Diesel mode starting delay after black-out occurs Diesel start. delay 1 999 sec
rtE 300 Stand-by mode starting delay after black-out end Electric start. delay 1 999 sec
PMa 30 Minimum glowplugs pre-heating time Max delay preheat. 0 999 sec
Pmi 10 Maximum glowplugs preheating time Min delay preheat. 0 999 sec
PtM 40,0 Minimum water temperature for preheating time calculation Min temp. preheat -55,0/-67 110,0/230 °C/°F
Ptm -20,0 Maximum water temperature for preheating time calculation Max temp. preheat. -55,0/-67 110,0/230 °C/°F
rFrI 10 Clutch delay after starting Clutch delay 0 250 sec
Probe configuration
Code Value Description Control cab message MIN MAX UDM
P2P NO Defrosting probe presence Evap. Sensor Presence 0 1
P3P NO Air evaporator probe presence Evap Air Sensor Presence 0 1
Csa 0 Cold room temperature probe calibration Room calibration -20,0/0 20,0/68 °C/°F
CF C Temperature measurement unit Measuring unit C F
Maintenance parameters
350 Soglia Allarme manutenzione 1 Service 1 threshold value 0 9999 Ore
A Codice Allarme Soglia 1 Service 1 threshold alarm code 0 LimCodAM
1200 Service 1 threshold value 2 Service 2 threshold value 0 9999 Ore
AB Codice Allarme Soglia 2 Service 2 threshold alarm code 0 LimCodAM
2050 Service 1 threshold value 3 Service 3 threshold value 0 9999 Ore
A Codice Allarme Soglia 3 Service 3 threshold alarm code 0 LimCodAM
2900 Service 1 threshold value 4 Service 4 threshold value 0 9999 Ore
ABC Codice Allarme Soglia 4 Service 4 threshold alarm code 0 LimCodAM
3750 Service 1 threshold value 5 Service 5 threshold value 0 9999 Ore
A Codice Allarme Soglia 5 Service 5 threshold alarm code 0 LimCodAM
4600 Service 1 threshold value 6 Service 6 threshold value 0 9999 Ore
ABD Codice Allarme Soglia 6 Service 6 threshold alarm code 0 LimCodAM
5450 Service 1 threshold value 7 Service 7 threshold value 0 9999 Ore
A Codice Allarme Soglia 7 Service 7 threshold alarm code 0 LimCodAM
6300 Service 1 threshold value 8 Service 8 threshold value 0 9999 Ore
ABC Codice Allarme Soglia 8 Service 8 threshold alarm code 0 LimCodAM
7150 Service 1 threshold value 9 Service 9 threshold value 0 9999 Ore
A Codice Allarme Soglia 9 Service 9 threshold alarm code 0 LimCodAM
8000 Service 1 threshold value 10 Service 10 threshold value 0 9999 Ore
AB Codice Allarme Soglia 10 Service 10 threshold alarm code 0 LimCodAM
8850 Service 1 threshold value 11 Service 11 threshold value 0 9999 Ore
AD Codice Allarme Soglia 11 Service 11 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 12 Service 12 threshold value 0 9999 Ore
0 Codice Allarme Soglia 12 Service 12 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 13 Service 13 threshold value 0 9999 Ore
0 Codice Allarme Soglia 13 Service 13 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 14 Service 14 threshold value 0 9999 Ore
0 Codice Allarme Soglia 14 Service 14 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 15 Service 15 threshold value 0 9999 Ore
0 Codice Allarme Soglia 15 Service 15 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 16 Service 16 threshold value 0 9999 Ore
0 Codice Allarme Soglia 16 Service 16 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 17 Service 17 threshold value 0 9999 Ore
0 Codice Allarme Soglia 17 Service 17 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 18 Service 18 threshold value 0 9999 Ore
0 Codice Allarme Soglia 18 Service 18 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 19 Service 19 threshold value 0 9999 Ore
0 Codice Allarme Soglia 19 Service 19 threshold alarm code 0 LimCodAM
0 Service 1 threshold value 20 Service 20 threshold value 0 9999 Ore
0 Codice Allarme Soglia 20 Service 20 threshold alarm code 0 LimCodAM

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Digital input management MIN MAX
En Air pressure switch input enabling 01
En Low pressure switch input enabling 01
Dis air filter input enabling 01
Dis Door input enabling 01
En Electric stand-by mode input enabling 01
En Water temperature input enabling 01
En Oil pressure alarm input enabling 01
En Thermal overload alarm input enabling 01
En High pressure switch input enabling 01
En Klixon input enabling 01
En Micro door switch input enabling 01
En Generator block input enabling 01
En Stand-by alarm input enabling 01
En Condenser fans block input enabling 01
cL Air pressure switch input polarity 01
oP Low pressure switch input polarity 01
cL air filter input polarity 01
op Door input polarity 01
cL Electric stand-by mode input polarity 01
cL Water temperature input polarity 01
cL Oil pressure alarm input polarity 01
cL Thermal overload alarm input polarity 01
oP High pressure switch input polarity 01
cL Klixon input polarity 01
oP Micro door switch input polarity 01
op Generator block input polarity 01
op Stand-by alarm input polarity 01
op Condenser fans block input polarity 01
Digital output management MIN MAX
0 Alarm relay 0 = Not Forced / 1 = Forced 0 1
1 3-ways solenoid valve 0 = Not Forced / 1 = Forced 0 1
0 Heating relay 0 = Not Forced / 1 = Forced 0 1
0 Evaporator fans relay 0 = Not Forced / 1 = Forced 0 1
0 High speed relay 0 = Not Forced / 1 = Forced 0 1
0 Electric motor relay 0 = Not Forced / 1 = Forced 0 1
1 Partialization relay 0 = Not Forced / 1 = Forced 0 1
1 Cooling relay 0 = Not Forced / 1 = Forced 0 1
0 Starter relay 0 = Not Forced / 1 = Forced 0 1
0 Alternator relay 0 = Not Forced / 1 = Forced 0 1
1 Heating2 relay 0 = Not Forced / 1 = Forced 0 1
0 Fuel pump relay 0 = Not Forced / 1 = Forced 0 1
0 Glow plug relay 0 = Not Forced / 1 = Forced 0 1
0 Condenser fan relay. 0 = Not Forced / 1 = Forced 0 1
0 Generator relay 0 = Not Forced / 1 = Forced 0 1
1 Anti-freezing relay 0 = Not Forced / 1 = Forced 0 1
0 Heating2 relay state when forced 0 = Off / 1 = On 0 1
0 3-ways solenoid valve relay state when forced 0 = Off / 1 = On 0 1
0 Partialization relay state when forced 0 = Off / 1 = On 0 1
0 Cooling relay relay state when forced 0 = Off / 1 = On 0 1
0 Anti-freezing relay state when forced 0 = Off / 1 = On 0 1