EVCO EV9346J9 User Manual

Ev9346

Evco S.p.A. • Code 1049346E00

EV9346

Digital controller with 6 outputs for electric pizza ovens, with rapid heating function

version 3.00

E ENGLISH

IMPORTANT

1.1

Important

Read these instructions carefully before installation and use and follow
all recommendations regarding installation and for the electric con-
nection; keep these instructions for future reference.

The instrument must be disposed of according to local
Standards regarding the collection of electric and electronic
appliances.

1.2

Dimensions and installation

Panel, with supplied screw bracket; dimensions in mm (in).

DIMENS.

MINIMUM

TYPICAL

MAXIMUM

92.0 (3.622)

92.8 (3.653)

92.0 (3.622)

92.8 (3.653)

Installation recommendations:
• the thickness of the panel must not exceed 4,0 mm (0,157 in)
• position the brackets as indicated in the drawing in this paragraph;

moderate the coupling torque

• make sure that the work conditions (temperature of use, humidity,

etc.) lie within the limits indicated in the technical data

• do not install the instrument in proximity of heat sources (resistances,

hot air pipes etc.) appliances with strong magnets (large diffusers etc.),
places subject to direct sunlight, rain, humidity, excessive dust, me-
chanical vibrations or shocks

• in compliance with Safety Standards, the protection against any con-

tact with the electric parts must be ensured via correct installation of
the instrument. All parts that ensure protection must be fixed in a way
such that they cannot be removed without the aid of a tool.

1.3

Electric connection

With reference to the wiring diagram: the serial port is the communi-
cation port with the supervising system (through a serial interface, via
TTL, with MODBUS communication protocol) or with the program-
ming key; the port must not be used for two purposes at the same time.

Recommendations for the electric connection:
• do not operate on the terminal boards using electric or pneumatic

screwdrivers

• if the instrument has been taken from a cold place to a hot one, the

humidity could condense inside. Wait about one hour before apply-
ing power

• make sure that the power supply voltage, frequency and operational

electric power correspond to those of the local power supply

• disconnect the power supply before performing any type of mainte-

nance

• equip the probes with a protection able to insulate them against any

contact with metal parts or use isolated probes

• do not use the instrument as a safety device
• for repairs and information regarding the instrument, contact the

Evco sales network.

PRELIMINARY CONSIDERATIONS

2.1

Preliminary considerations

The instrument can be configured to function with 1 measurement
input (default, chamber probe) or with 2 measurement inputs (top
probe and floor probe).
Functioning with 1 measurement input allows to independently set
the power distributed to the top to that distributed to the floor. Func-
tioning with 2 measurement inputs allows to independently set the top
and floor work temperatures.
The utilities managed by the digital outputs (i.e. the K1 relays... K6) are
the following:

RELAY UTILITY MANAGED

top

floor

alarm

chamber light

acoustics

on/stand-by

To set the type of functioning (with 1 measurement input rather than 2)
see paragraph 4.1.
2.2

Management of the utilities

Top.
If functioning with 1 measurement input:
• the output is switched on in cyclical mode, preferably when the top

output is off (the parameter c1 establishes the cycle time. The proce-
dure given in paragraph 4.3 can be used to set the duration of output
switch-on, intended as a percentage of the time established with
parameter c1)

• the cyclical activity is subject to the chamber temperature (chamber

probe), to the work set-point and parameter r0.

If functioning with 2 measurement inputs:
• the output activity depends mainly on the floor temperature (floor

probe), the floor set-point and parameter r0.

Floor.
If functioning with 1 measurement input:
• the output is switched on in cyclical mode, preferably when the top

• the cyclical activity is subject to the chamber temperature (chamber

probe), to the work set-point and parameter r0.

If functioning with 2 measurement inputs:
• the output activity depends mainly on the floor temperature (floor

probe), the floor set-point and parameter r6.

Alarm.
The output is activated during a temperature alarm.
Chamber light.
The output is activated in manual mode.
Through the multifunction input it is also possible to activate the output
in remote mode.
Acoustics.
The output is activated during an alarm or an error, with continuous
contribution.
On/Stand-by.
The output is activated during the “on” status (see paragraph 3.1).
3

USER INTERFACE

3.1

Preliminary considerations

The following functioning states exist:
• the “on” state (the instrument is powered and on: the regulators can

be on)

• the “stand-by” state (the instrument is powered but switched off via

software: the regulators are off)

• the “off” state (the instrument is not powered).
Successively, the term “switch-on” means the passage from the stand-by
state to the on state. The term “switch-off” means the passage from the
on state to the stand-by state.
When powered, the instrument re-proposes the state that it was in when
the power supply was disconnected.
3.2

Instrument switch on/off

To pass from the stand-by state to the on state (and vice versa):
• make sure no procedure is in progress
• press

for 1s.

Through the on/stand-by input it is also possible to pass from the on
state to the stand-by state in remote mode.

To pass from the on to the stand-by state in remote mode:
• activate the on/stand-by input (the instrument remains in the stand-by

state for the entire duration of input activation).

If the on/stand-by input is active, it will not be allowed to pass from the
stand-by state to the on state by pressing the

key.

3.3

The display

If functioning with 1 measurement input, if the instrument is in the on
state:
• the upper part of the display will show the quantity established with

parameter P5:

- if P5 = 0, the display will show the chamber temperature
- if P5 = 1, the display will show the work set-point
• the lower part of the display will show the size established with pa-

rameter P6:

- if P6 = 0, the display will show the chamber temperature
- if P6 = 1, the display will show the work set-point (in this case the “set”

LED will be on).

See also paragraphs 3.4 and 3.6.
If functioning with 2 measurement inputs, if the instrument is in the on
state:
• the upper part of the display will show the size established with pa-

rameter P5:

- if P5 = 0, the display will show the top temperature
- if P5 = 1, the display will show the top set-point
- if P5 = 2, the display will show the floor temperature
- if P5 = 3, the display will show the floor set-point
• the lower part of the display will show the size established with pa-

rameter P6:

- if P6 = 0, the display will show the top temperature
- if P6 = 1, the display will show the top set-point (in this case the “set”

LED and the “1” LED will be on)

- if P6 = 2, the display will show the floor temperature
- if P6 = 3, the display will show the floor set-point (in this case the “set”

LED and the “2” LED will be on).

See also paragraphs 3.4 and 3.6.
If the instrument is in the stand-by state:
• the upper part of the display will be off
• the lower part of the display will be off
• the LED will be on.
3.4

Learning the quantity shown by the upper part of
the display during the on state

• make sure no procedure is in progress
• press

and

: if functioning with 1 measurement input, the
upper part of the display will show one of the
labels given in the following table for 2 seconds:

LABEL MEANING

chamber temperature

work set-point

If functioning with 2 measurement inputs, the upper part of the display
will show one of the labels given in the following table for 2 seconds:

LABEL MEANING

Pb1

temperature of the top

SP1

top set-point

Pb2

temperature of the floor

SP2

floor set-point

3.5

Temporary setting of the quantity shown by the
upper part of the display during the on state

• make sure no procedure is in progress
• press

and

for 1 s several times: the upper part of the display
will show one of the labels given in the tables in
paragraph 3.4 for 2 secs, after which it will show
the corresponding value.

Any power supply cut-off causes the display of the quantity established
with parameter P5 to be restored.
3.6

Learning the quantity shown by the lower part of
the display during the on state

• make sure no procedure is in progress
• press

and

: if functioning with 1 measurement input, the
lower part of the display will show one of the
labels given in the following table for 2 seconds:

LABEL MEANING

chamber temperature

work set-point

if functioning with 2 measurement inputs, the lower part of the display
will show one of the labels given in the following table for 2 seconds
value of the cooking timer or its count if the timer is active:

LABEL MEANING

Pb1

temperature of the top

SP1

top set-point

Pb2

temperature of the floor

SP2

floor set-point

3.7

Temporary setting of the quantity shown by the
lower part of the display during the on state

• make sure no procedure is in progress
• press

and

for 1s several times: the lower part of the display
will show one of the labels given in the tables in
paragraph 3.6 for 2 secs, after which it will show
the corresponding value.

Any power supply cut-off causes the display of the quantity established
with parameter P6 to be restored.

3.8

Chamber light switch on/off

• make sure no procedure is in progress
• press
Using the multifunction input, it is also possible to cause the same effect
by pressing the

key in remote mode.

3.9

Buzzer silencing

• make sure no procedure is in progress
• press a key (the first time the key is pressed, the associated effect is not

caused).

Pressing the key also causes the deactivation of the acoustic output and
the buzzer output.
Using the multifunction input, it is also possible to deactivate the buzzer,
the acoustic output and the buzzer output in remote mode.
4

SETTINGS

4.1

Setting the type of functioning (with 1 measure-
ment input rather than 2)

To access the procedure:
• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press

and

for 4s: the upper part of the display will show
“PA”

• press

: the lower part of the display will show the corresponding
value

• press

within 15s to set “743”

• press
• press

and

for 4s: the upper part of the display will show
“Pb”.

To modify the type of functioning:
• press

: the lower part of the display will show the corresponding
value.

The meaning of the values is the following:

VALUE MEANING

functioning with 1 measurement input (default, chamber
probe)

functioning with 2 measurement inputs (top probe and
floor probe)

• press

within 15s

• press
To exit the procedure:
• press

and

for 4s.

The modification of the type of functioning does not cause
the configuration parameters default value to be restored.
4.2.1 Setting the work set-point (only if functioning with

1 measurement input)

• make sure that the instrument is in on state and that no procedure is

in progress

• press

: the lower part of the display will show “SP”, the upper
part the corresponding value and the LED

will flash

• press

within 15s; see also parameters r1 and r2

• press

3 times or do not operate for 15s: the LED

will switch-

off, after which the instrument will exit the procedure.

To exit the procedure in advance:
• do not operate for 15s (any modifications will be saved).
It is also possible to set the work set-point via the SP parameter.
4.2.2 Setting the top set-point and the floor set-point (only

if functioning with 2 measurement inputs)

To modify the top set-point:
• make sure that the instrument is in on state and that no procedure is

in progress

• press

: the lower part of the display will show “SP1”, the upper
part the corresponding value and the LED

will flash

• press

within 15s; see also parameters r1 and r2

• press

2 times or do not operate for 15s: the LED

will switch-

off, after which the instrument will exit the procedure.

To modify the floor set-point:
• press

during the modification of the top set-point: the lower part
of the display will show “SP2”, the upper part the corre-
sponding value and the LED

will flash

• press

within 15s; see also parameters r7 and r8

• press

: the LED

will switch-off, after which the instrument

will exit the procedure.

To go back to previous levels:
• press

several times during the procedure.

To exit the procedure in advance:
• do not operate for 15s (any modifications will be saved).
It is also possible to set the top set-point via parameter SP1 and the floor
set-point via parameter SP2.
4.3

Setting the power distributed to the top and the
power distributed to the floor (only if functioning
with 1 measurement input)

To modify the power distributed to the top:
• press

during the modification of the work set-point: the lower
part of the display will show “Po1”, the upper part the
corresponding value and a proportioned number of bars
of the will flash

• press

within 15s; see also parameters c0 and c1

• do not operate for 15s: the LED will switch-off, after which the

instrument will exit the procedure.

To modify the power distributed to the floor:
• press

during the modification of the power distributed to the
top: the lower part of the display will show “Po2”, the
upper part the corresponding value and a proportioned
number of bars of the LED will flash

• press

within 15s; see also parameters c0 and c1

• press

: the LED will switch-off, after which the instrument will
exit the procedure.

To go back to previous levels:
• press

several times during the procedure.

To exit the procedure in advance:
• do not operate for 15s (any modifications will be saved).
It is also possible to set the power distributed to the top through param-
eter Po1 and the power distributed to the floor through parameter
Po2.
4.4

Setting the configuration parameters

To access the procedure:
• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press

and

for 4s: the upper part of the display will show
“PA”

• press

: the lower part of the display will show the corresponding
value

• press

within 15s to set “-19”

• press

or do not operate for 15s

• press

and

for 4s: if functioning with 1 measurement input,
the upper part of the display will show “SP”; if
functioning with 2 measurement inputs, the up-
per part of the display will show “SP1”.

To select a parameter:
• press

To modify a parameter:
• press

: the lower part of the display will show the corresponding
value

• press

within 15s

• press

or do not operate for 15s.

To exit the procedure:
• press

and

for 4s or do not operate for 60s (any modifica-
tions will be saved).

Cut the instrument power supply off after modification of
the parameters.
4.5

Restore the default value of the configuration pa-
rameters

• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press

and

for 4s: the upper part of the display will show
“PA”

• press

: the lower part of the display will show the corresponding
value

• press

within 15s to set “743”

• press

or do not operate for 15s

• press

and

for 4s: the upper part of the display will show
“Pb”

• press

to select “dEF”

• press

: the lower part of the display will show the corresponding
value

• press

within 15s to set “149”

• press

or do not operate for 15s: the upper part of the display will
show “dEF” flashing for 4s, after which “dEF” will switch
on

• cut the instrument power supply off.
To exit the procedure in advance:
• press

and

for 4s during the procedure (i.e. before setting
“149”: restore will not be carried out).

Make sure that the default value of the parameters is appro-
priate.
5

RAPID HEATING (only if functioning with 1 meas-
urement input)

5.1

Preliminary considerations

The rapid heating allows to reach the work set-point as quickly as
possible, supplying 100% of the power both to the top and the floor
(i.e. excluding switch-on of the top and floor outputs in a cyclical way
with benefit to switch-on in continuous mode).
When the temperature of the chamber reaches the “work set-point -
temperature established with parameter c3” value, the function is inter-
rupted.
5.2

Rapid heating activation

• causes the event established with parameter c2:
- if c2 = 1, press

for 1s (make sure that the instrument is in on state

and that no procedure is in progress)

- if c2 = 2, pass from the stand-by state to the on state
- if c2 = 3, press

for 1s (make sure that the instrument is in on state

and that no procedure is in progress) or pass from the stand-by state
to the on state.

If parameter c2 is set at 0, the function cannot be activated.
When the function is in progress the upper part of the display shows
“F-F” alternately to the quantity established with parameter P5.
5.3

Interruption of rapid heating in manual mode

• make sure no procedure is in progress
• press

for 1s.

SIGNALS

6.1

Signals

LED

MEANING
top and floor LED
if it is on, the top output and/or the floor output will be on
if it flashes, the modification of the work set-point, the top
set-point and the floor set-point is in progress (with the pro-
cedures indicated in paragraphs 4.2.1 or 4.2.2)
power distributed to the top LED
supplies and indication regarding the power distributed to
the top
if it flashes, the modification of the power distributed to the
top is in progress (with the procedure indicated in para-
graph 4.3)
power distributed to the floor LED
supplies and indication regarding the power distributed to
the floor
if it flashes, the modification of the power distributed to the
floor is in progress (with the procedure indicated in para-
graph 4.3)

degrees Celsius LED
if it is on, the unit of measurement of the temperatures will
be degrees Celsius (parameter P2)

degrees Fahrenheit LED
if it is on, the unit of measurement of the temperatures will
be degrees Fahrenheit (parameter P2)
on/stand-by LED
if it is on, the instrument is in the stand-by state

set

set-point LED
if it is on, the quantity shown by the lower part of the display
will be the work set-point value, the top set-point and the
floor set-point

• the quantity displayed by the lower part of the display will

be the top set-point value

• the quantity displayed by the lower part of the display will

be the floor set-point value

INDICATIONS

7.1

Indications

INDICAT. MEANING

F-F

alternately to the quantity established with parameter P5:
the rapid heating function will be in progress (only if func-
tioning with 1 measurement input)

ALARMS

8.1

Alarms

CODE MEANING

chamber temperature alarm (only if functioning with 1
measurement input)
Remedies:
• check the chamber temperature
• see parameters A1 and A3
Consequences:
• the alarm output will be activated
• the acoustics output and the buzzer output will be acti-

vated

AL1

top temperature alarm (only if functioning with 2 measure-
ment inputs)
Remedies:
• check the top temperature
• see parameters A1 and A3
Consequences:
• the alarm output will be activated
• the acoustics output and the buzzer output will be acti-

vated

AL2

floor temperature alarm (only if functioning with 2 meas-
urement inputs)
Remedies:
• check the floor temperature
• see parameters A5 and A7
Consequences:
• the alarm output will be activated
• the acoustics output and the buzzer output will be acti-

vated

When the causes of the alarm have disappeared, the instrument will go
back to normal functioning.
9

INTERNAL DIAGNOSTICS

9.1

Internal diagnostics

CODE MEANING

Pr1

If functioning with 1 measurement input:
chamber probe error
Remedies:
• see parameter P0
• check probe integrity
• check the instrument-probe connection
• check the chamber temperature
Main consequences:
• the top output and the floor output will be deactivated
• the acoustics output and the buzzer output will be acti-

vated