EVCO EVK404N9 User Manual

Page 4

Evco S.p.A. • Code 104K404E114 • page 4/8

5.7

Block/release of the keyboard

To block the keyboard:
• make sure no procedures are in progress
• press

and

for 1 s: the display will show “Loc” for 1 s.

The following will not be allowed if the keyboard is blocked:
• to switch the device on/off in manual mode
• display the magnitude detected by probe 1 and the magnitude

detected by 2 (with the procedure indicated in paragraph 5.4)

• display the state of the digital input 1 an the state of the digital input

2 (with the procedure indicated in paragraph 5.5)

• learning the type of operation in progress (with the procedure

indicated in paragraph 5.6)

• to activate the Program function in manual mode
• to modify the work set-point SP1 (with the procedure indicated in

paragraph 6.1)

• to modify the work set-point SP1 (with the procedure indicated in

paragraph 6.2)

• to restore the factory settings
• to display the list of alarms and errors
• to delete the list of alarms and errors.
These operations cause the “Loc” label to be displayed for 1 s.
To release the keyboard:
• press

and

for 1 s: the display will show “UnL” for 1 s.

5.8

Silencing the buzzer

• make sure no procedures are in progress
• press a key (pressing the key does not cause the associated effect).
If parameter u4 is set at 1, pressing the key will also cause the deacti-
vation of any relays for signalling the alarms and errors (CFG = 3).
If parameter u9 is set to 0, the buzzer will not be enabled.
6

SETTINGS

6.1

Setting the work set-point SP1

• make sure that the keyboard is not blocked and that no procedure

is in progress

• press

: the display will show “SP1” for 1 s, after which the value
will be displayed

• press

within 15 s; see also parameters r1, r2 and r3

•press

twice or do not operate for 15 s: the device will exit the
procedure.

It is also possible to set this work set-point via parameter SP1.
6.2

Setting the work set-point SP2

• press

twice: the display will show “SP2” for 1 s, after which the
value will be displayed

• press

within 15 s; see also parameters r7, r8 and r9

• press

or do not operate for 15 s: the device will exit the
procedure.

It is also possible to set this work set-point via parameter SP2.
6.3

Setting the configuration parameters

To access the procedure:
• make sure no procedures are in progress
• press

and

for 4 s: the display will show “PA”

• press
• press

within 15 s to set “-19”

• press

or do not operate for 15 s

• press

and

for 4 s: the display will show “SP1”.

To select a parameter:
• press

To modify a parameter:
• press
• press

within 15 s

• press

or do not operate for 15 s.

To exit the procedure:
• press

and

for 4 s or do not operate for 60 s.

Cut the device power supply off after modification of the
parameters.
6.4

Restoring the factory settings

To access the procedure:
• make sure that the keyboard is not blocked and that no procedure

is in progress

• press

for 1 s: the display will show the first label available

• press

to select “dEF”

• press
• press

within 15 s to set “149”

• press

or do not operate for 15 s: the display will show “dEF”
flashing for 4 s after which the device will exit the
procedure

• cut the device power supply off.
To exit the procedure in advance:
• press

during the procedure (i.e. before setting “149”), after
which do not operate for 60 s: restore will not take place.

Make sure that the factory settings are appropriate
(see chapter 12).

STORING ALARMS AND ERRORS

7.1

Foreword

The device can store the alarms and errors (hereon called events;
see chapters 9 and 10).
The device supplies the following information:
• the critical value (if available)
• the duration of the event (from 1 min to 99 h and 59 min, partial if

the event is in progress).

CODE TYPE OF EVENT (AND CRITICAL VALUE)

minimum alarm (the minimum magnitude detected by
probe 1 during any alarm of this type)

maximum alarm (the maximum magnitude detected by
probe 1 during any alarm of this type)

id1

external alarm with automatic restore from digital input 1
(the critical value is not available)

id2

external alarm with automatic restore from digital input 2
(the critical value is not available)

iSd1

external alarm with manual restore from digital input 1
(the critical value is not available)

iSd2

external alarm with manual restore from digital input 2
(the critical value is not available)

Pr1

probe 1 error (he critical value is not available)

Pr2

probe 2 error (he critical value is not available)

Warnings:
• the device updates the information regarding the event

also if the critical value of the new event is less critical
than that in the memory or on condition that the infor-
mation have been already displayed

• if the device is off (stand-by state), no event

will be stored.

When the cause of the event disappears, the display restores
normal operation.
7.2

Display of information regarding the alarms
and errors

To access the procedure:
• make sure that the keyboard is not blocked and that no procedure

is in progress

• press

for 1 s: the display will show the first label available

• press

to select “LS”

• press

: the display will show one of the codes stated in the table
in paragraph 7.1.

To select an event:
• press

to select “AH” (for example).

To display the information regarding the event:
• press

: the display will show the following information in suc-
cession (for example):

INFOR. MEANING

8.0

the critical value is 8.0 °C/8.0 °F

dur

the display is about to show the duration of the event

h01

the event had duration of 1 h (continue ...)

n15

the event had duration of 1 h and 15 minutes

the event selected

the displays each piece of information for 1 s.
To exit the succession of information:
• press

: the display will show the event selected.

To exit the procedure:
• exit the succession of information
• press

until the display shows the magnitude established

with parameter P5 or do not operate for 60 s.

Alternatively:
• exit the succession of information
• press
If the device has no event in the memory, the “LS” label will not be
displayed.
7.3

Deleting the list of alarms and errors

• make sure that the keyboard is not blocked and that no procedure

is in progress

• press

for 1 s: the display will show the first label available

• press

to select “rLS”

• press
• press

within 15 s to set “149”

• press

or do not operate for 15 s: the display will show “- - - -”
flashing for 4 s after which the device will exit the
procedure.

To exit the procedure in advance:
• press

during the procedure i.e. before setting “149”)

until the display shows the magnitude established
with parameter P5 or do not operate for 60 s:
deletion will not be performed.

If the device has no event in the memory, the “rLS” label will
not be displayed.
8

SIGNALS AND INDICATIONS

8.1

Signals

LED

MEANING

Relay 1 LED
if it is on, relay 1 will be on
if flashing:
• a relay 1 protection will be in progress:
- parameters C0, C1, C2, C11 and C12

Relay 2 LED
if it is on, relay 2 will be on
if flashing:
• a relay 2 protection will be in progress:
- parameters C0, C1, C2, C11 and C12

Relay 3 LED
if it is on, relay 3 will be on
if flashing:
• a relay 3 protection will be in progress:
- parameters C0, C1, C2, C11 and C12

Relay 4 LED
if it is on, relay 4 will be on
if flashing:
• a relay 4 protection will be in progress:
- parameters C0, C1, C2, C11 and C12
alarm LED
if it is on, an alarm or error is in progress

Degree Celsius LED
if it is on, the unit of measurement of the temperature will
be the degree Celsius:
- parameters P21 and P22

Degree Fahrenheit LED
if it is on, the unit of measurement of the temperature will
be the degree Fahrenheit:
- parameters P21 and P22
On/stand-by LED
if it is on, the device will be in the stand-by state

8.2

Indications

CODE MEANING

Ph?

the work Program function is in progress
- see paragraph 4.5

EndP the work Program function has been cut-off

- see paragraph 4.5

StOP

the work Program function has ended
- see paragraph 4.5

- - - -

the magnitude displayed during normal operation is probe
2 but the probe is absent:
- parameters P5 and P9

Loc

the keyboard is blocked:
- see paragraph 5.7
the work set-points are blocked:
- parameter r3 and/or r9

ALARMS

9.1

Alarms

CODE MEANING

Minimum alarm
Solutions:
• check the magnitude detected by probe 1
• see:
- parameters A1 and A2
Main consequences:
• if the parameter CFG is set at 3, the relay K3 will be on

Maximum alarm
Solutions:
• check the magnitude detected by probe 1
• see:
- parameters A4 and A5
Main consequences:
• if the parameter CFG is set at 3, the relay K4 will be on

id1

External alarm with automatic restore from digital input 1
Solutions:
• check the causes of input activation
• see parameters i0 and i1
Main consequences:
• the relays used for regulation will be forced to the state

established with parameter i11

• if parameter CFG is set at 3, the relays signalling the alarms

and errors will be switched on

iSd1

External alarm with manual restore from digital input 1
Solutions:
• check the causes of input activation
• see parameters i0 and i1
• wait for the cause of the alarm to disappear and then

press the

and

keys for 1 s

Main consequences:
• the relays used for regulation will be forced to the state

established with parameter i11

• if parameter CFG is set at 3, the relays signalling the alarms

and errors will be switched on

id2

External alarm with automatic restore from digital input 2
Solutions:
• check the causes of input activation
• see parameters i5 and i6
Main consequences:
• the relays used for regulation will be forced to the state

established with parameter i11

• if parameter CFG is set at 3, the relays signalling the alarms

and errors will be switched on