Klimawent
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10 z 16
Filtering unit
BIG-2000/Ex
02.10.2019
The
A3
terminal box connects the cable to the sensors on the venting panel, with the output cable, (going out of
the Switchgear
A1
). When the cable on the panel is interrupted (during the explosion), the device automation
disconnects the fan and the system of regeneration of filters. Any electrical connections ought to be performed
in conformity with the above placed Connection Diagram
– see Fig. No.8.
Motor in ATEX execution is secured with the motor switch with protection against the blocked startup, overload,
short-circuit- and fade of one phase. Additionally, the motor is protected by the PTC sensor, installed directly
within its windings, as a protection against the excessive overheating.
7.2 Use of the A2 micro-controller
press
C
– to get access to the functions
F01
– F13
press
C
one more time
– to select the requested function
press
A
– to enter into the selected function
press
A
or
C
– to introduce changes of the settings
press
B
– to return to the functions
F01
– F13
press
B
one more time
– to return to the mode of display of work parameters.
Table No.4
– Functions F01 – F13
F01
external enter
0
– ON; 2 – OFF
F02
time of impulse
0,05
5,00 [s]
F03
time of break between the impulses
1
999 [s] * (B3x)
F04
quantity of enters
0-48
F05
quantity of regeneration cycles
– after the fan is stopped
0
99
F06
manual activation
C
– selected / A – activation from the external signal
F07
control from the signal
dP
not active
0
– OFF; 2 – ON
F08
output voltage
24V, 115V, 230V *(HV)
F09
zero point trimming
– for
dP
not active
0,00 *(C8)
F10
regeneration disconnection pressure
– from
dP
not active
0,01
9,99 kPa
F11
pressure of regeneration start
– from
dP
not active
0,01
9,99 kPa
F12
maximum pressure for the alarm
– from
dP
not active
0,01
9,99 kPa
F13
control with the regeneration process
0
– via contact; 1 – by readout from
dP
dP
– converter of the difference of pressures
7.2.1 Description of the displayed messages of the micro-controller A2
Table No.5
– Messages from the display
OFF
the regeneration is stopped (for the open
D6
input)
-0-
final regeneration
– after the fan is disconnected (input D1a is open)
1.00/P
final regeneration
– for the signal of low pressure difference – from dP (display light is pulsing)
A01
number of the activated electromagnetic valve
…
final regeneration is in progress
– after the fan is disconnected (blinking points)
1.23
readout
– difference of pressures [kPa]
E
readout
– difference of pressures – beyond the scale
Pushbutton
B
– reset of ALARM on the micro-controller
Pushbutton
C
– enter the menu
7.2.2 Description of the displayed ALARM messages on the A2 micro-controller
1.50/H
ALARM of the preset maximum pressure difference (parameter
F12
) the display is blinking; check the
coil of the electromagnetic valve and the frequency of regenerations;
E1/05
overload of the output
05
– the display is blinking; check the connections of the electromagnetic valve,
the state of the coil of electromagnetic valve, examine the occurrence of eventual water in the con-
nection plug
7.2.3 Description of the displayed messages on the A2 micro-controller
B1b
selection of the quantity of enters
means selection of enters
– started from the keyboard in the mode “settings”;
if
0
or
AUTO
is selected, in this function, the micro-controller automatically choses the outputs from
electro-valves and ignores the outputs without the overload;
B2x
time of activation of output
(
time
of impulse
)
from 0,05 up to 5,00 seconds
B3x
time of interval
– from 1 up to 999 seconds
if the time of impulse is less than 1 second
– it is possible to set any interval time – within the indicated
range;
if the activation time is more than 1 second
– the minimum adjustable interval time is:
minimum interval time = 5 x impulse time (
B2x
)