Salda MCB - Mcb, Ex1 and Ex2 Controllers I;O List

22 | EN MCB_miniMCB v2019.1
6.2. MCB, EX1 AND EX2 CONTROLLER’S I/O LIST
MCB
CONEC-
TION
NO.
CON-
TACT
NO.
FUSE
NO.
MAX
CURRENT,
A
LED NO. CONTACT NAME FUNCTIONAL UNIT TITLE
X1
1
MCB FDI TACHO
K_1(GND)
Supply fan speed (RPM)
2
MCB FDI TACHO
A_1(+10V)
3
MCB FDI TACHO
K_2(GND)
Extract fan speed (RPM)
4
MCB FDI TACHO
A_2(+10V)
X2
1 PE Rotor speed (RPM)
2 GND Too high condensation (NO)
3 +24VDC
4 MCB HOLO
X3
1 MCB DI1
Supply air electrical heater automatic protection (NC)/
Supply air Hydronic cooler heating/cooling changeover
thermostat (NC/NO)/Water heater circulation pump fail
2 +12VDC
3 MCB DI2 Supply air electrical heater manual protection/
4 +12VDC Water heater protection (thermostat) (NC)
5 MCB DI3
Supply air fan protection (NC)
6 +12VDC
X4
1 MCB DI4
Fire protection input (NC)
2 +12VDC
3 MCB DI5
By-pass closed input (NC)
4 +12VDC
5 MCB DI6 Rotor alarm (NC)
6 +12VDC Heat exchanger pressure relay (NC)
7 MCB DI7
Extract air fan failure (NC)
8 +12VDC
X5
1 MCB AI1 (NTC)
Supply air temperature sensor
2 GND
3 MCB AI2 (NTC)
Fresh air temperature sensor
4 GND
5 MCB AI3 (NTC)
Exhaust air temperature sensor
6 GND
7 MCB AI4 (0-10V)
Heat exchanger pressure transmitter
8 GND
X6
1 MCB AI5 (NTC)
Extract air temperature sensor
2 GND
3 MCB AI6 (NTC)
After HXT air temperature sensor
4 GND
5 MCB AI7 (NTC)
Hydraulic heater ret. uid temperature sensor
6 GND
X7
1 +24VDC
Connection with EX2-X47
2 +3,3VDC
3 GND
4 I2C_SDA
5 I2C_SCL
X8
1 PE
BMS connection (RS485)
2 GND
3 +24VDC
4 GND
5 RS485 A (D+)
6 RS485 B (D-)
7 RS485 B (D-)
8 RS485 A (D+)