EVCO EV9326J9 User Manual

Page 4

Evco S.p.A. • Code 1049326E00 • page 4/6

ALARMS

13.1 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 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

multifunction input alarm (only if the parameter i5 is set at 5)
Remedies:
• check the causes that brought about the input activation
• see parameters i5 and i6
Main consequences:
• the top output will be deactivated
• the floor output will be deactivated
• steam injection will not be available
• 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.
14

INTERNAL DIAGNOSTICS

14.1 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

If functioning with 1 measurement input:
steam probe error
Remedies:
• the same as the previous case but relative to the steam

probe

Main consequences:
• the steam generator output will be off
• steam injection will not be available
• the acoustics output and the buzzer output will be acti-

vated

If functioning with 2 measurement inputs:
floor probe error
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.

TECHNICAL DATA

15.1 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;
second input (steam probe) for J/K ther-
mocouple

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

mocouple if functioning with 2 measure-
ment inputs.

Digital inputs: 2 inputs:

• on/stand-by input in high voltage (230 VAC) with

configurable polarity

• multifunction input, for NO/NC contact (poten-

tial-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: 6 relays:

• top (relay K1): 8 A res. @ 250 VAC (NO)
• floor (relay K2): 8 A res. @ 250 VAC (NO)
• utility that can be set (relay K3): 8 A res.

@ 250 VAC (contact in exchange)

• airhole (relay K4): 8 A res. @ 250 VAC (NO

contact)

• steam injection (relay K5): 8 A res. @

250 VAC (NO contact)

• utility that can be set (relay K6): 8 A res.

@ 250 VAC (contact in exchange).

The maximum current accepted on clamp 23 is 10 A.
To set the utility managed by relay K3 and relay K6, see paragraph 4.2.
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.

PT • 35/09