EVCO EV9303J9 User Manual

Page 2

EVCO S.p.A.

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Evco does not take any responsibility about damages coming by the non-observance of the additional information.

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Evco reserves the right to make any change without prior notice and at any time without prejudice the basic safety and operating features.

PT • 35/09

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

• on power supply restore, the acoustics output and the

buzzer output will be activated

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.
11

INTERNAL DIAGNOSTICS

11.1 Internal diagnostics

CODE MEANING

Pr1

chamber probe error
Remedies:
• see parameter P0
• check probe integrity
• check the instrument-probe connection
• check the chamber temperature
Main consequences:
• the temperature regulation 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.
12

TECHNICAL DATA

12.1 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).

WORK SET-POINT AND CONFIGURATION PARAMETERS

13.1 Work set-point

MIN.

MAX.

U.M.

DEF.

°C/°F (1) 150

13.2 Configuration parameters
PARAM. MIN.

MAX.

U.M.

DEF.

°C/°F (1) 150

PARAM. MIN.

MAX.

U.M.

DEF.

CA1

-25/-50 25/50 °C/°F (1) 0

- - - -

PARAM. MIN.

MAX.

U.M.

DEF.

°C/°F (1) 5

°C/°F (1) 50

999

°C/°F (1) 350

r12

- - - -

PARAM. MIN.

MAX.

U.M.

DEF.

- - - -

250

ds (3)

PARAM. MIN.

MAX.

U.M.

DEF.

-1

120

min

00:00 60:00 min:s

00:30

120

PARAM. MIN.

MAX.

U.M.

DEF.

999

°C/°F (1) 0

240

min

- - - -

PARAM. MIN.

MAX. U.M.

DEF.

- - - -

PARAM. MIN.

MAX. U.M.

DEF.

247

- - - -

247

- - - -

(1)

the unit of measurement depends on parameter P2

(2)

set the parameters relative to the regulators appropriately after modification of parameter P2

(3)

ds = tenths of second

(4)

the buzzer and the acoustic output are activated before the conclusion of the cooking timer count (of the time established with the
parameter c9), for the time established with parameter c4

(5)

if the cooking timer is interrupted (with the procedure given in paragraph 5.4 or by activation of the malfunction input), the duration of
buzzer activation and of the acoustic output and the flashing duration of the 00:00 indication will be 3 seconds

(6)

the parameter differential is 10 °C/18 °F

DIGITAL INPUTS
effect caused by the activation of the multifunction input
0 = no effect
1 = STAR/INTERRUPTION OF THE COOKING TIMER - the activation of the input will cause the cooking

timer to start and the successive activation will cause its interruption

2 = BUZZER, ACOUSTIC OUTPUT AND BUZZER OUTPUT DEACTIVATION - the activation of the input will

cause deactivation of the buzzer, the acoustic output and the buzzer output (activate the input again
to deactivate these utilities again)

3 = STEAM INJECTION - in this case:

• if t0 = 0, the activation of the input causes the injection of steam for the time established with

parameter t2 or for the entire duration that the key is pressed (parameter t1 establishes the minimum
time that can pass between the two successive injections) (7)

• if t0 = 1, the activation of the input will enable automatic steam injection (in cyclical mode; param-

eter t2 establishes the duration of the switch-on of the injector and parameter t1 establishes the
duration of switch-off) until the input is activated again (7)

type of contact of the multifunction input
0 = NO (input active with closed contact)
1 = NC (input active with open contact)
SERIAL NETWORK (MODBUS)
instrument address
baud rate
0 = 2,400 baud
1 = 4,800 baud
2 = 9,600 baud
3 = 19,200 baud
parity
0 = none (no parity)
1 = odd
2 = even

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: 1 (chamber probe) for J/K thermocouple.
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.
Digital outputs: 3 relays:

• relay K1: 8 A res. @ 250 VCA (NO contact)
• relay K2: 8 A res. @ 250 VCA (NO contact)
• relay K3: 8 A res. @ 250 VCA (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.

WORK SET-POINT
work set-point

WORK SET-POINT
work set-point
MEASUREMENT INPUTS
chamber probe offset
type of probe
0 = J
1 = K
temperature unit of measurement (2)
0 = °C
1 = °F
quantity shown by the upper part of the display during the on state or during normal functioning
0 = chamber temperature
1 = work set-point
quantity shown by the lower part of the display during the on state or during normal functioning
0 = chamber temperature
1 = work set-point
2 = value of the cooking timer or its count if the timer is active
MAIN REGULATOR
work set-point differential
minimum work set-point
maximum work set-point
restraint between the output state for the regulation of the temperature and the cooking timer
1 = YES - the temperature regulation output remains off if the cooking timer count is not in progress
STEAM INJECTION
steam injection functioning mode
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 minimum time that can
pass between the two successive injections.

1 = pressing the

key enables automatic injection of the steam in cyclical mode (parameter t2

establishes the switch-on duration of the injector and parameter t1 establishes switch-off duration)

if t0 = 0, minimum time that passes between two successive injections
if t0 = 1, injector switch-off duration
if t0 = 0, minimum injection duration
if t0 = 1, injector switch-on duration
VARIOUS
duration of buzzer activation and the acoustic output on conclusion of the cooking timer count; see
also c9 (4) (5)
-1= the buzzer and the acoustic output must be deactivated in manual mode by pressing a key
time that passes between the activation of the airhole and the conclusion of the cooking timer count,
see also c6
duration of the activation of the airhole at conclusion of the cooking timer count, see also c5
duration of the activation of the airhole in manual mode
time that passes between the activation of the buzzer and the acoustic output and the conclusion of the
cooking timer count, see also c4
TEMPERATURE ALARMS
temperature above which the temperature alarm is activated, se also A3 (6)
temperature alarm delay
type of temperature alarm
0 = no alarm
1 = absolute (i.e. A1)
2 = relative to the work set-point (i.e. “work set-point + A1”)