Salda MCB - Page 21

EN | 21MCB_miniMCB v2019.1
LED4 MCB status LED +
LED5
Communication line Transmit indica-
tion
-
LED6
Communication line Receive indica-
tion
-
LED7
24V peripheral POWER ON indica-
tion
-
BUTTON/SWITCH POSITION PURPOSE
S1 - Board Reset button (B5 mcu port)
S2 1 120R line termination resistor
miniMCB EX1
CONEC-
TION
NO.
CON-
TACT NO.
FUSE
NO.
MAX
CURRENT,
A
LED
NO.
CONTACT NAME FUNCTIONAL UNIT TITLE OPERATION IN
STAND-BY MODE
(1W)
X19
1
- - -
AI1 (0-10V)
A1-Supply RH/pressure or extract
CO
2
/RH sensor input
-2 GND
3 24VDC
X20
1
- - -
GND
Heater control output (0-10VDC) -
2 AO1 (0-10V)
3 GND
Hydronic heater ret. uid tempera-
ture sensor
-
4 AI2 (NTC)
X21
1
- - -
DO1
Working indication output (24VDC;
1,2W max.)
-
2 24VDC
3 DO2
Alarm indication output (24VDC;
1,2W max.)
-
4 24VDC
XH1
1
-
0,01
GND
Power supply for DTJ sensor -
2 5VDC
3
0,01
GND
4 5VDC
X23
1
- - -
DI1
Supply air electrical heater manual
protection input (NC)
-
2 12VDC
3 DI2 Supply air electrical heater au-
tomatic protection input (NC)/
Water heater circulation pump fail
-
4 12VDC
5 DI3 Supply lter pressure relay/Fire place
realy input I, DI (NO)/ Fire protection
input 2 (NO)
-
6 12VDC
7 DI4
Extract lter pressure relay/Fire
place relay input II, DI (NO)
-
8 12VDC
X24
1
- - -
GND
Communication with MCB, power -
2 24VDC
3 12VDC
4 3.3VDC
5 2.5VDC_REF
6 GND
7 I2C_SDA
8 I2C_SCL
LED1 EX1 status LED -
BUTTON/SWITCH PURPOSE
S1 EX1 Reset button
PRESSURE SENSOR PURPOSE
SK1 Current supply air ow pressure (Pa)
SK2 Current extract air ow pressure (Pa)