Electric Wiring - Nastec 4HS Installation And Operating Manual

7.1 Electric wiring

Input power line (LINE):
 L1,L2 power line
 GND ground
Analog inputs:

AN1 (4-20 mA or 0-10 V)

AN2 (4-20 mA or 0-10 V)

0V

+24V

AN3 (4-20 mA)

AN4 (4-20 mA)

0V

+24V

10V

0V
AN1 o AN2 terminals can be set as
voltage input (V) or current input (I)
through J5 e J9 selector.
L1
Output power line (PUMP):
 M1,M2 terminals
 GND ground
Digital inputs: Communication

auxiliary (RS485):
IN1

0V

IN2

0V

IN3

0V

IN4

0V
Pump signal:
 S+ (red)
 S- (white)
Digital outputs (relays):


S1+

S1-

Relays of digital outputs are free
contacts relays (no voltage) Max
voltage is 250 V AC and max
current is 5 A.
RELAY1: pump run signal
NO: normally opened
COM: common
NC: normally closed
RELAY2: alarm signal
NO: normally opened
COM: common
NC: normally closed
9