EVCO EV9323J9 - Manual

Evco S.p.A. • Code 1049323E00 • page 1/5
EV9323
Digital controller with 3 outputs for electric bread ovens, with cooking timer and rapid heating functions
version 3.00
E ENGLISH
1 IMPORTANT
1.1 Important
Read these instructions carefully before installation and use and fol-
low all warnings regarding installation and for the electric connec-
tion. Keep these instructions with the instrument for future reference.
The instrument must be disposed of in compliance with
local Standards relative to the collection of electrical and
electronic appliances.
1.2 Dimensions and installation
Panel with supplied brackets with screws; dimensions in mm (in).
DIMENS. MINIMUM TYPICAL MAXIMUM
A 92.0 (3.622) 92.0 (3.622) 92.8 (3.653)
B 92.0 (3.622) 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 working conditions (temperature of use, humid-
ity, 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,
mechanical vibrations or jerks
• in compliance with Safety Standards, protection against any contact
with electrical parts must be assured via correct installation of the
instrument. All parts that ensure protection must be fixed in a way
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 port for the
communication with the supervising system (through a serial inter-
face, via TTL, with MODBUS communication protocol) or with the
programming 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 place, the
humidity could condense inside; wait for about one hour before
applying power
• check that the power supply voltage, the frequency and the electric
operational power of the instrument correspond with those of the
local power supply
• disconnect the power supply before performing any type of main-
tenance
• supply the probes with protection able to isolate them from 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.
2 PRELIMINARY CONSIDERATIONS
2.1 Preliminary considerations
The instrument can be configured to function with 1 measurement
input (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.
In both cases it is possible to select the utilities managed by the digital
outputs (i.e. relays K1, K2 and K3) among a series of 2 combinations
(instrument codes 1 and 2); a third combination (instrument code 0)
allows to set the utility managed by each output independently.
INSTR. CODE RELAY K1 UTILITY RELAY K2 UTILITY RELAY K3 UTILITY
0 can be set can be set can be set
(top default) (floor default) (default steam
injection)
1 top floor airhole
2 top floor chamber light
To set the type of functioning (with 1 measurement input rather than 2)
see paragraph 4.1.
To set the instrument code, see paragraph 4.2. Finally, to set the utility
managed by each output, see paragraph 4.3.
2.2
Management of the utilities
Top.
If functioning with 1 measurement input:
• the output is switched on in cyclical mode, preferably when the
floor output is off (the parameter c1 establishes the cycle time. The
procedure given in paragraph 4.5 can be used to set the duration
of output switch-on, intended as a percentage of the time estab-
lished 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 top temperature (top
probe), the top set-point and parameter r0.
Floor.
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 4.5 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 r6.
Airhole.
The output 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, key for the time established with parameter c7.
Steam injection.
The output activity depends mainly on parameter t0.
Through the multifunction input it is also possible to activate the out-
put in remote mode.
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 out-
put in remote mode.
Cooking timer.
The output is activated during the cooking timer count.
Acoustics.
The output is activated in the following conditions:
• before the conclusion of the cooking timer count (of the time estab-
lished with the parameter c9), for the time established with param-
eter c4
• during an alarm or an error, with continuous contribution.
In spite of the fact that the instrument can manage the 8
utilities stated in this paragraph, there are 3 digital out-
puts available. Make sure that the desired utility is man-
aged by the instrument (see paragraph 2.1).
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.
3.3 Il display
If functioning with 1 measurement input, if the instrument is in the on
state:
• the upper part of the display will show the size 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
parameter 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)
- if P6 = 2, he display will show the value of the cooking timer or its
count if the timer is active (in this case the “timer” LED will be on); the
value of the cooking timer is displayed in the hours:minutes format.
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
parameter 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
parameter 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 value of the cooking timer or its
count if the timer is active (in this case the “timer” LED will be on); the
value of the cooking timer is displayed in the hours:minutes format
- if P6 = 3, the display will show the floor temperature
- if P6 = 4, 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
Pb chamber temperature
SP 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 1s 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 estab-
lished 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
Pb chamber temperature
SP work set-point
tine value of the cooking timer or its count if the timer is active