S&P ECOWATT PLUS CRHB 400 N, Manual

Page: 14 / 40

14
EN
IMPORTANT
At the bottom of control box, two tubes (marked as “V” and “P”) come from the inside part of the fan. As the fan
is supplied as constant pressure mode (COP), the tube “P” is connected and “V” disconnected and blocked with a
plastic stopper. To keep this confi guration unless chapter 5.2. is previously ridden.
4.2. WIRING DIAGRAM AND INTERNAL BOARD
NC C NO
ALARM/RELAY
ON/OFF BOOST MIN/MAX
NIGHT
230V
ON
1
S1
S2
S3
S4
J1 J2
J3 J4 J5 J6
J17
F1
234
1
2
3
1
2
3
ON
ON
D4 D5 D3
J15 J14
D0 D1 D1 0V 12V D0
J9
0V
J1
0
J8
J7
J1
1
J12
IN
+24
0
V
IN
+
24
0V
IN
+24
AI1
A
I2
AI3
0V
IN
TA
C
H
MA
S
T
E
R
S
L
A
V
E
0V
+
0V
+
OU
T 0-
1
0V
L N L1 N1
BT1
Fuse Settings
Pressure
sensor
Timer
battery
Oper.
modes USB
0-10V output
master/slave
Motor
tachometer
Analog
input 3
Analog
input 2
Analog
input 1
Modbus connection
and +12V supply Output
motor supply
Equipment
supply
Modbus
connection
Element Terminals Description
J1 L, N, GND Equipment supply, 230V ± 10% - 50/60 Hz
J2 GND, L1, N1 Output motor supply - (factory wiring)
J3 ON/OFF Remote Stop/Start via normally open voltage free contact (factory default joint)
J4 BOOST Maximum performance through normally open voltage free contact
J5
MIN/MAX
NIGHT
Min/Max: Normally open voltage free contact min/max speed activation if equipment is
configured in MIN/MAX operating mode. The maximum speed is 100% and minimum is 40%.
Night: Normally open voltage free contact that reduces selected setpoint to 50% and,
consequently, reduces the motor speed. Active function in COP, CAV and VAV modes.
J6
NC, C, NO
ALARM /
RELAY
Switched alarm relay
J7 0V, IN, +24 AI3 Analog input 0-10V or 4-20mA. +24V output (100mA max.)
J8 0V, IN, +24 AI2 Analog input 0-10V or 4-20mA. +24V output (100mA max.)
J9 0V, IN, +24 AI1 Analog input 0-10V or 4-20mA. +24V output (100mA max.)
J10 0V, IN Motor tachometer - (factory wiring)
J11
0V, +
(MASTER)
0-10V motor regulation master output - (factory wiring)