Evco EV8318 Quick Start Manual

EVCO S.p.A. | EV8318 | Instr uction sheet ver. 2.0 | Code 1048318E203 | Page 1 of 4 | PT 47/18
EV8318
I ENGLISH
- power supply 115... 230 VAC or 24 VAC (according to the model)
- built-in clock
- chamber probe or top and floor probes (J/K or Pt 100 2-wire)
- multi-purpose input
- steam generator relay, 16 A res. @ 250 VAC
- alarm buzzer
- TTL MODBUS slave port for programming key or for TTL/RS-485 (BMS) serial interface
- USB port (set up recipe book)
- on-off/PI control
- independent regulation of the power or the top and floor temperature.
Models available
Purchasing Power supply Type of
code analogue inputs
EV8318J9 115... 230 VAC for J/K thermo-
couples or
Pt 100 2-wire
probes
EV8318J4 24 VAC for Pt 100 2-wire
probes and
J/K thermocou-
ples
1

MEASUREMENTS AND INSTALLATION

Measurements in mm (inches). To be fitted to a panel, screwed-in brackets provided.
INSTALLATION PRECAUTIONS
- the thickness of the panel must be between 0.8 and 5.0 mm (1/32 and 1/16 in)
- the maximum clamping torque applicable to the screwed-in brackets is 10 cNm
- ensure that the working conditions are within the limits stated in the TECHNICAL
SPECIFICATIONS section
- do not install the device close to heat sources, equipment with a strong magnetic field,
in places subject to direct sunlight, rain, damp, excessive dust, mechanical vibrations
or shocks
- in compliance with safety regulations, the device must be installed properly to ensure
adequate protection from contact with electrical parts. All protective parts must be
fixed in such a way as to need the aid of a tool to remove them.
Controller for bread and pizza deck ovens
2

ELECTRICAL CONNECTION

N.B.
- use cables of an adequate section for the current running through them
- ensure that the thermocouple is properly insulated from contact with metal parts or
use already insulated thermocouples
- if necessary, extend the thermocouple cables using compensating cables
- where they are two multi-purpose inputs, multi-purpose input 1 has priority over
multi-purpose input 2
- the TTL MODBUS port can be used as an alternative to the USB port and vice versa
- to reduce any electromagnetic interference locate the power cables as far away as
possible from the signal cables.
Number of Type of digital
digital outputs outputs for
top and floor
electro-
8
mechanical
relay
electro-
8
mechanical
relay
PRECAUTIONS FOR ELECTRICAL CONNECTION
- if using an electrical or pneumatic screwdriver, adjust the tightening torque
- if the device is moved from a cold to a warm place, humidity may cause condensation
to form inside. Wait for about an hour before switching on the power
- make sure that the supply voltage, electrical frequency and power are within the set
limits. See the section TECHNICAL SPECIFICATIONS
- disconnect the power supply before carrying out any type of maintenance
- do not use the device as a safety device
- for repairs and for further information, contact the EVCO sales network.
3

FIRST-TIME USE

1. Carry out the installation following the instructions given in the section MEASUREMENTS
AND INSTALLATION.
2. Power up the device as set out in the section ELECTRICAL CONNECTION: an internal
test will start up.
The test normally takes a few seconds; when it is finished the display will switch off.
3. Configure the device as shown in the section Setting configuration parameters.
Recommended configuration parameters for first-time use:
PAR. DEF. PARAMETER
P0 0 type of probe
P1 0 unit of measurement
P2 0 operating logic
r3 130 chamber setpoint
r6 130 floor setpoint
Then check that the remaining settings are appropriate; see the section CONFIGURA-
TION PARAMETERS.
4. Disconnect the device from the mains.
5. Make the electrical connection as shown in the section ELECTRICAL CONNECTION with-
out powering up the device.
6. When connecting to an RS-485 network, connect the EVIF22TSX interface.
7. Power up the device.
4

USER INTERFACE AND MAIN FUNCTIONS

4.1

Switching the device on/off

To switch the device on:
1.
To switch the device off:
1.
If the device is on and the operating logic has independent regulation of the top and floor
power (P2 = 0, default), the display will show:
If the chamber setpoint has been reached, the status of the device will show "READY", if not, it
will show "PRE-HEATING".
If the device is on and the operating logic has independent regulation of the top and floor tem-
perature (P2 = 1), the display will show:
If the top and floor setpoints have been reached, the status of the device will show "READY", if
not, it will show "PRE-HEATING".
If the device is switched off, the display will show the time. If the weekly programmed switch-
on function is activated, the display will also show the day and time of the next switch-on and
the programme that will start.
If the status of the device shows an alarm code, see the section ALARMS.
4.2

Starting up/interrupting the cooking cycle

To start up a cooking cycle:
- make sure that the device is switched on
MIN... MAX.
- make sure that the cooking timer is set
0 = J 1 = K
2 = Pt 100 2-wire
1.
0 = °C 1 = °F
0 = independent regulation of the
top and floor power
To interrupt the cooking cycle:
1 = independent regulation of the
top and floor temperature
1.
r1... r2
if P2 = 1, top setpoint
4.3

Setting the cooking timer

r4... r5
Make sure that the device is switched on.
1.
2.
3.
4.
5.
6.
4.4.1

Setting the chamber setpoint (if P2 = 0)

Make sure that the device is switched on.
1.
Touch the ON/STAND-BY key.
Touch the ON/STAND-BY key for 3 s.
Touch the START/STOP key: the cooking timer will start up and
the status of the device will show "COOKING". When the timer
stops, it will show "END".
Touch the START/STOP key for 1 s.
Touch the INTERACTIVE 4 key: the display will show the minutes
in yellow.
Touch the INTERACTIVE 1 key or the INTERACTIVE 2 key within
15 s to set the value.
Touch the INTERACTIVE 3 key: the display will show the seconds
in yellow.
Touch the INTERACTIVE 1 key or the INTERACTIVE 2 key within
15 s to set the value.
Touch the INTERACTIVE 3 key (or take no action for 15 s).
Touch the INTERACTIVE 4 key to exit the procedure beforehand
(any changes made will not be saved).
Touch the INTERACTIVE 2 key: the display will show the value in
yellow.