EVCO EV9346J9 User Manual

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Evco S.p.A. • Code 1049346E00

EV9346 Digital controller with 6 outputs for electric pizza ovens, with rapid heating function version 3.00

E ENGLISH

1 IMPORTANT

1.1 Important

Read these instructions carefully before installation and use and follow

all recommendations regarding installation and for the electric con-

nection; keep these instructions for future reference.

The instrument must be disposed of according to local

Standards regarding the collection of electric and electronic

appliances.

1.2 Dimensions and installation

Panel, with supplied screw bracket; 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 work conditions (temperature of use, humidity,

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, me-

chanical vibrations or shocks

• in compliance with Safety Standards, the protection against any con-

tact with the electric parts must be ensured via correct installation of

the instrument. All parts that ensure protection must be fixed in a way

such 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 communi-

cation port with the supervising system (through a serial interface, via

TTL, with MODBUS communication protocol) or with the program-

ming 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 one, the

humidity could condense inside. Wait about one hour before apply-

ing power

• make sure that the power supply voltage, frequency and operational

electric power correspond to those of the local power supply

• disconnect the power supply before performing any type of mainte-

nance

• equip the probes with a protection able to insulate them against 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 (default, 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.

The utilities managed by the digital outputs (i.e. the K1 relays... K6) are

the following:

RELAY UTILITY MANAGED

K1 top

K2 floor

K3 alarm

K4 chamber light

K5 acoustics

K6 on/stand-by

To set the type of functioning (with 1 measurement input rather than 2)

see paragraph 4.1.

2.2 Management of the utilities

Top.

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 4.3 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 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 4.3 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.

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 output

in remote mode.

Acoustics.

The output is activated during an alarm or an error, with continuous

contribution.

On/Stand-by.

The output is activated during the “on” status (see paragraph 3.1).

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.

Through the on/stand-by input it is also possible to pass from the on

state to the stand-by state in remote mode.

To pass from the on to the stand-by state in remote mode:

• activate the on/stand-by input (the instrument remains in the stand-by

state for the entire duration of input activation).

If the on/stand-by input is active, it will not be allowed to pass from the

stand-by state to the on state by pressing the key.

3.3 The display

If functioning with 1 measurement input, if the instrument is in the on

state:

• the upper part of the display will show the quantity 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 pa-

rameter 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).

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 1 s 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 established

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

if functioning with 2 measurement inputs, the lower part of the display

will show one of the labels given in the following table for 2 seconds

value of the cooking timer or its count if the timer is active:

LABEL MEANING

Pb1 temperature of the top

SP1 top set-point

Pb2 temperature of the floor

SP2 floor set-point

3.7 Temporary setting of the quantity shown by the

lower part of the display during the on state

• make sure no procedure is in progress

• press and for 1s several times: the lower part of the display

will show one of the labels given in the tables in

paragraph 3.6 for 2 secs, after which it will show

the corresponding value.

Any power supply cut-off causes the display of the quantity established

with parameter P6 to be restored.

3.8 Chamber light switch on/off

• make sure no procedure is in progress

• press

Using the multifunction input, it is also possible to cause the same effect

by pressing the key in remote mode.

3.9 Buzzer silencing

• make sure no procedure is in progress

• press a key (the first time the key is pressed, the associated effect is not

caused).

Pressing the key also causes the deactivation of the acoustic output and

the buzzer output.

Using the multifunction input, it is also possible to deactivate the buzzer,

the acoustic output and the buzzer output in remote mode.

4 SETTINGS

4.1 Setting the type of functioning (with 1 measure-

ment input rather than 2)

To access the procedure:

• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press and for 4s: the upper part of the display will show

“PA”

• press : the lower part of the display will show the corresponding

value

• press or within 15s to set “743”

• press

• press and for 4s: the upper part of the display will show

“Pb”.

To modify the type of functioning:

• press : the lower part of the display will show the corresponding

value.

The meaning of the values is the following:

VALUE MEANING

1 functioning with 1 measurement input (default, chamber

probe)

2 functioning with 2 measurement inputs (top probe and

floor probe)

• press or within 15s

• press

To exit the procedure:

• press and for 4s.

The modification of the type of functioning does not cause

the configuration parameters default value to be restored.

4.2.1 Setting the work set-point (only if functioning with

1 measurement input)

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

in progress

• press : the lower part of the display will show “SP”, the upper

part the corresponding value and the LED will flash

• press or within 15s; see also parameters r1 and r2

• press 3 times or do not operate for 15s: 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).

It is also possible to set the work set-point via the SP parameter.

4.2.2 Setting the t op set-point and t he floor s et-point (only

if functioning with 2 measurement inputs)

To modify the top set-point:

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

in progress

• press : the lower part of the display will show “SP1”, the upper

part the corresponding value and the LED will flash

• press or within 15s; see also parameters r1 and r2

• press 2 times or do not operate for 15s: the LED will switch-

off, after which the instrument will exit the procedure.

To modify the floor set-point:

• press during the modification of the top set-point: the lower part

of the display will show “SP2”, the upper part the corre-

sponding value and the LED will flash

• press or within 15s; see also parameters r7 and r8

• 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).

It is also possible to set the top set-point via parameter SP1 and the floor

set-point via parameter SP2.

4.3 Setting the power distributed to the top and the

power distributed to the floor (only if functioning

with 1 measurement input)

To modify the power distributed to the top:

• press during the modification of the work set-point: the lower

part of the display will show “Po1”, the upper part the

corresponding value and a proportioned number of bars

of the will flash

• press or within 15s; see also parameters c0 and c1

• do not operate for 15s: the LED will switch-off, after which the

instrument will exit the procedure.

To modify the power distributed to the floor:

• press during the modification of the power distributed to the

top: the lower part of the display will show “Po2”, the

upper part the corresponding value and a proportioned

number of bars of the LED will flash

• press or within 15s; see also parameters c0 and c1

• 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).

It is also possible to set the power distributed to the top through param-

eter Po1 and the power distributed to the floor through parameter

Po2.

4.4 Setting the configuration parameters

To access the procedure:

• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press and for 4s: the upper part of the display will show

“PA”

• press : the lower part of the display will show the corresponding

value

• press or within 15s to set “-19”

• press or do not operate for 15s

• press and for 4s: if functioning with 1 measurement input,

the upper part of the display will show “SP”; if

functioning with 2 measurement inputs, the up-

per part of the display will show “SP1”.

To select a parameter:

• press or

To modify a parameter:

• press : the lower part of the display will show the corresponding

value

• press or within 15s

• press or do not operate for 15s.

To exit the procedure:

• press and for 4s or do not operate for 60s (any modifica-

tions will be saved).

Cut the instrument power supply off after modification of

the parameters.

4.5 Restore the default value of the configuration pa-

rameters

• make sure that the instrument is in stand-by state and that no proce-

dure is in progress

• press and for 4s: the upper part of the display will show

“PA”

• press : the lower part of the display will show the corresponding

value

• press or within 15s to set “743”

• press or do not operate for 15s

• press and for 4s: the upper part of the display will show

“Pb”

• press or to select “dEF”

• press : the lower part of the display will show the corresponding

value

• press or within 15s to set “149”

• press or do not operate for 15s: the upper part of the display will

show “dEF” flashing for 4s, after which “dEF” will switch

• cut the instrument power supply off.

To exit the procedure in advance:

• press and for 4s during the procedure (i.e. before setting

“149”: restore will not be carried out).

Make sure that the default value of the parameters is appro-

priate.

5 RAPID HEATING (only if functioning with 1 meas-

urement input)

5.1 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 inter-

rupted.

5.2 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.

5.3 Interruption of rapid heating in manual mode

• make sure no procedure is in progress

• press for 1s.

6 SIGNALS

6.1 Signals

LED MEANING

top and floor LED

if it is on, the top 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 pro-

cedures indicated in paragraphs 4.2.1 or 4.2.2)

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 para-

graph 4.3)

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 para-

graph 4.3)

°C degrees Celsius LED

if it is on, the unit of measurement of the temperatures will

be degrees Celsius (parameter P2)

°F 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

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

1 • 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

7 INDICATIONS

7.1 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)

8 ALARMS

8.1 Alarms

CODE ME ANING

AL 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 measure-

ment 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

When the causes of the alarm have disappeared, the instrument will go

back to normal functioning.

9 INTERNAL DIAGNOSTICS

9.1 Internal diagnostics

CODE ME ANING

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.

10 TECHNICAL DATA

10.1 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.

Alarm buzzer: incorporated.

Digital inputs: 2 inputs:

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

configurable polarity

• multifunction input, for 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 thermo-

couple.

Resolution: 1 °C/1 °F.

Digital outputs: 6 relays:

• top (relay K1): 8 A res. @ 250 VAC (contact in

exchange)

• floor (relay K2): 8 A res. @ 250 VAC (contact in

exchange)

• alarm (relay K3): 8 A res. @ 250 VAC (NO

contact)

• chamber light (relay K4): 8 A res. @ 250 VAC

(NO contact)

• acoustics (relay K5): 8 A res. @ 250 VAC (NO

contact)

• on/stand-by (relay K6): 8 A res. @ 250 VAC

(NO contact)

The maximum current accepted on clamp 23 is 10 A.

Other outputs: buzzer output (12 V, max. 20 mA); the output is acti-

vated 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.

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

11 WORK SET-POINT, POWER DISTRIBUTED AND CONFIGURATION PARAMETERS

11.1 Work set-point

MIN. MAX. U.M. 1 INPUT 2 INPUTS r1 r2 °C/°F (1) 15 0 not visible r1 r2 °C/°F (1) not visible 15 0 r7 r8 °C/°F (1) not visible 15 0

WORK SET-POINT

work set-point

top set-point

floor set-point

11.2 Power distributed

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS

0 1 0 0 % 50 not visible

POWER DISTRIBUTED

power distributed to the top (percentage of c1); see also c0 and c1

power distributed to the floor (percentage of c1); see also c0 and c1

11.3 Configuration parameters

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS SP r1 r2 °C/°F (1) 15 0 not visible SP1 r1 r2 °C/ °F (1) not visible 15 0 SP2 r7 r8 °C/ °F (1) not visible 15 0

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS

Po1 0 1 00 % 50 not visible

Po2 0 1 00 % 50 not visible

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS CA1 -25/-5025/50 °C/°F (1) 0 0

WORK SET-POINT

work set-point

top set-point

floor set-point

POWER DISTRIBUTED

power distributed to the top (percentage of c1); see also c0 and c1

power distributed to the floor (percentage of c1); see also c0 and c1

MEASUREMENT INPUTS

with 1 measurement input, chamber probe inset; with 2 measurement inputs,

top probe offset

CA2 -25/-5025/50 °C/°F (1) not visible 0

P0 0 1 - - - - 0 0

floor probe offset

type of probe

0=J

1=K

P2 0 1 - - - - 0 0

temperature unit of measurement (2) 0=°C 1=°F

P5 0 (3) - - - - 0 0

quantity shown by the upper part of the display during the on state or during

normal functioning

0 = with 1 measurement input, chamber temperature; with 2 measurement

inputs, top temperature

1 = with 1 measurement input, work set-point; with 2 measurement inputs, top

set-point

2 = temperature of the floor

3 = floor set-point

P6 0 (3) - - - - 1 1

quantity shown by the lower part of the display during the on state or during

normal functioning

0 = with 1 measurement input, chamber temperature; with 2 measurement

inputs, top temperature

1 = with 1 measurement input, work set-point; with 2 measurement inputs, top

set-point

2 = temperature of the floor

3 = floor set-point

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS r0 1 99 °C/°F (1) 5 5

MAIN REGULATOR

with 1 measurement input, work set-point differential; with 2 measurement

inputs, top set-point differential

r1 0 r2 °C/°F (1) 5 0 5 0

with 1 measurement input, minimum work set-point; with 2 measurement in-

puts, top minimum set-point

r2 r1 999 °C/°F (1) 350 350

with 1 measurement input, maximum work set-point; with 2 measurement in-

puts, top maximum set-point

r6 1 99 °C/°F (1) not visible 5 r7 0 r8 °C/°F (1) not visible 50 r8 r7 999 °C/°F (1) not visible 35 0

floor set-point differential

minimum floor set-point

maximum floor set-point

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS

c0 0 2 - - - - 0 not visible

VARIOUS

restraint between the power distributed to the top and power distributed to the floor

0 = no restraint

1 = the modification of the power supplied to an output automatically causes

the supply of the maximum power to the other

2 = the modification of the power supplied to an output causes an automatic

adaptation of the power supplied to the other such to guarantee that the

sum of the two percentages is always 100

c1 1 9 99 s 80 not visible

c2 0 3 - - - - 1 not visible

cycle time for the top output and floor output switch-on, see also Po1 and Po2

event that causes the activation of the rapid heating function

0 = function cannot be activated

1 = press for 1s (make sure that the instrument is in on state and that no

procedure is in progress)

2 = pass from stand-by state to on state

3 = press for 1s (make sure that the instrument is in on state and that no

procedure is in progress) or pass from stand-by state to on state

c3 0 99 °C/°F (1) 1 0 not visible

temperature of the chamber over which the rapid heating function is inter-

rupted (relative to the work set-point i.e. “work set-point - c3”)

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS A1 0 999 °C/°F (1) 0 0

TEMPERATURE ALARMS

with 1 measurement input, temperature of the chamber above which the cham-

ber temperature alarm is activated; with 2 measurement inputs, temperature of

the top above which the top temperature alarm is activated; see also A3 (4)

A2 0 240 min 0 0

with 1 measurement input, chamber temperature alarm delay; with 2 measure-

ment inputs, top temperature alarm delay

A3 0 2 - - - - 0 0

with 1 measurement input, type of chamber temperature alarm delay; with

2 measurement inputs, type of top temperature alarm delay

0 = no alarm

1 = absolute (i.e. A1)

2 = with 1 measurement input, relative to the work set-point (i.e. “work set-point

+ A1”); with 2 measurement inputs, relative to the top set-point (i.e. “top set-

point + A1”)

A4 0 999 °C/°F (1) not visible 0

floor temperature above which the floor temperature alarm is activated, se also

A6 (4)

A5 0 24 0 m in not visible 0

A6 0 2 - - - - not visible 0

floor temperature alarm delay

type of floor temperature alarm

0 = no alarm

1 = absolute (i.e. A4)

2 = relative to the floor set-point (i.e. “floor set-point + A4”)

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS

i1 0 1 - - - - 0 0

DIGITAL INPUTS

on/stand-by input polarity

0 = live input active

1 = non-live input active

i5 0 2 - - - - 0 0

effect caused by the activation of the multifunction input

0 = no effect

1=CHAMBER LIGHT SWITCH-ON/OFF - the activation of the input will cause the

chamber light to switch-on and the successive activation will cause its switch-

off

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)

i6 0 1 - - - - 0 0

type of contact of the multifunction input

0 = NO (input active with closed contact)

1 = NC (input active with open contact)

PARAM. MIN. MAX. U.M. 1 INPUT 2 INPUTS

LA 1 247 - - - - 247 247

Lb 0 3 - - - - 2 2

SERIAL NETWORK (MODBUS)

instrument address

baud rate

0 = 2.400 baud

1 = 4.800 baud

2 = 9.600 baud

3 = 19.200 baud

LP 0 2 - - - - 2 2

parity

0 = none (no parity)

1 = odd

2 = even

(1) the unit of measurement depends on parameter P2

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

(3) the value depends on the type of functioning (1 with 1 measurement input and 3 with 2 measurement inputs) (4) the parameter differential is 10 °C/18 °F.

PT • 35/09

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