EVCO EV9323J9 User Manual

Page 3

Evco S.p.A. • Code 1049323E00 • page 3/5

5.4

Interrupting the cooking timer

• press

for 1s: the “timer” LED switches off and the buzzer will be
activated for 3s.

STEAM INJECTION

6.1

Preliminary considerations

The functioning mode of the steam injection depends on parameter t0.
If the parameter t0 is set at 0, pressing the

key causes the injection

of steam for the time established with parameter t2 or for the entire
duration that the key is pressed. The parameter t1 establishes the mini-
mum time that can pass between the two successive injections.
If the parameter t0 is set at 1, pressing the

key will enable the

automatic injection of the steam (in cyclical mode: parameter t2 estab-
lishes the duration of the injector switch-on and parameter t1 estab-
lishes the duration of switch-off).
Using the multifunction input, it is also possible to cause the same
effect caused by pressing the

key in remote mode.

If the steam injection is not managed by any digital output, pressing
the

key will cause the display of the “no” indication for 1s in the

lower part of the display.
6.2

Quick setting of the parameter t2

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

in progress

• press

and

: the upper part of the display will show “t2”, the
lower part the corresponding value and the LED

will flash.

The parameter t2 can be set between 1 and 250 ds.
If steam injection is not managed by any digital output, the lower part
of the display will show “no” for 1s.
• press

within 15s

• press

: 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).
6.3

Activation of the injector in manual mode (only if
parameter t0 is set at 0)

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

in progress

• press

: the LED will switch-on and the injector will be acti-
vated, both for the time established with parameter t2 or
for the entire duration that the key is pressed.

The injector must not be deactivated in manual mode.
6.4

Enabling of automatic steam injection (only if pa-
rameter t0 is set at 1)

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

in progress

• press

: the LED will switch on the injector will be activated in
cyclical mode according to that established with param-
eters t1 and t2 (until the key is pressed again).

AIRHOLE

7.1

Preliminary considerations

The airhole is activated in the following conditions
• before the conclusion of the cooking timer count (of the time established

with the parameter c5), for the time established with parameter c6

• in manual mode, by pressing the

key for the time established

with parameter c7.

If the airhole is not managed by any digital output, pressing the
key will cause the display of the “no” indication for 1s in the lower part
of the display.
7.2

Quick setting of the parameter c7

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

in progress

• press

and

: the upper part of the display will show “c7”, the
lower part the corresponding value; the left part
and the LED will flash.

The parameter c7 is visualised in the minutes:seconds format.
To modify the minutes:
• press

within 15s

• press

: the right part will flash.

To modify the seconds:
• press

within 15s.

The parameter c7 can be set between 00:00 and 60:00 min:s.
If the airhole is not managed by any digital output, the lower part of
the display will show “no” for 1s.
• 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).
7.3

Activation of the airhole in manual mode

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

in progress

• press

: the LED will switch on and the airhole will be acti-
vated, both for the time established with parameter c7.

7.4

Deactivation of the airhole in manual mode

• make sure no procedure is in progress
• press

: the LED will switch-off.

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

8.1

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 in-
terrupted.

AL1

top temperature alarm (only if functioning with 2 meas-
urement 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

PF1

power supply cut-off alarm during the cooking timer count
Remedies:
• press a key to restore the normal display
• check the causes that brought about the power supply

cut-off

Main consequences:
• on power supply restore, the count will continue with

a maximum error of 3 min

• the acoustics output and the buzzer output will be acti-

vated

When the cause of the alarm disappears, the instrument restores nor-
mal functioning, except for the power supply cut-off alarm during the
cooking timer count (code “PF1”) which requires a key to be pressed.

INTERNAL DIAGNOSTICS

12.1 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

If functioning with 2 measurement inputs:
top probe error
Remedies:
• the same as the previous case but relative to the top probe
Main consequences:
• the top output will be deactivated
• the acoustics output and the buzzer output will be acti-

vated

Pr2

floor probe error (only if functioning with 2 measurement
inputs)
Remedies:
• the same as the previous case but relative to the floor

probe

Main consequences:
• the floor output will be deactivated
• 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.
13

TECHNICAL DATA

13.1 Technical data

Container: grey self-extinguishing.
Front panel protection rating: IP 54.

Connections: removable terminal boards (power supply, inputs and
outputs), 6-pole connector (serial port).
Temperature of use: from 0 to 55 °C (from 32 to 131 °F, 10 ... 90%
relative humidity without condensate).
Power supply: 115 ... 230 VAC, 50/60 Hz, 5 VA (approx) or 24 VAC,
50/60 Hz.
Alarm buzzer: incorporated.
Measurement inputs: can be configured:

• 1 (chamber probe) for J/K thermocouple

if functioning with 1 measurement input

• 2 (top probe and floor probe) for J/K ther-

mocouple if functioning with 2 measure-
ment inputs

Digital inputs: 1 (multifunction) or NO/NC contact (potential-free
contact, 5 V 1 mA).

Range of measurement: from -99 to 800 °C (from-99 to 999 °F)
for J thermocouple, from -99 to 999 °C (from -99 to 999 °F) for
K thermocouple.

Resolution: 1 °C/1 °F.
Uscite digitali: 3 relays:

• relay K1: 8 A res. @ 250 VAC (NO contact)
• relay K2: 8 A res. @ 250 VAC (NO contact)
• relay K3: 8 A res. @ 250 VAC (contact in ex-

change)

The utility managed by each output depends on the instrument code
(see paragraph 2.1).
Other outputs: buzzer output (12 V, max. 20 mA); the output is
activated during alarms and errors, with continuous contribution.

Serial port: port for the communication with the supervising system
(through a serial interface, via TTL, with MODBUS communication
protocol) or with the programming key.

8.2

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.
8.3

Interruption of rapid heating in manual mode

• make sure no procedure is in progress
• press

for 1s.

SIGNALS

9.1

Signals

LED

MEANING
top and floor LED
if it is on, the to 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
procedures indicated in paragraphs 4.4.1 or 4.4.2)
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 paragraph 4.5)
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 paragraph 4.5)
steam injection LED
if it is on:
• and the parameter t0 is set at 0, steam injection will be in

progress

• and the parameter t0 is set at 1, steam injection will be in

enabled

if it flashes, rapid setting of parameter t2 is in progress (see
paragraph 6.2)
airhole LED
if it is on, the airhole will be activated in manual mode
if it flashes:
• the airhole will be activated due to the effect of the con-

clusion of the cooking timer count (parameter c6)

• rapid setting of parameter c7 is in progress (see para-

graph 7.2)

degrees Celsius LED
if it is on, the unit of measurement of the temperatures will
be degrees Celsius (parameterP2)

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

timer cooking timer LED

if it is on, the quantity shown by the lower part of the
display will be the value of the cooking timer or its count
if the timer will be activated
if it flashes:
• cooking timer setting is in progress
• the cooking timer count will be in progress but the lower

part of the display will be showing another quantity

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

10.1 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)

decrease the time established with parameter c9 is missing... 1 second

time

to the conclusion of the cooking timer count

00:00 flashing: the cooking timer count has ended

the function requested is not managed by any digital output

ALARMS

11.1 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 activated