Nastec VASCO - Page 8

8
Control board
Analog inputs (10 or 15 Vdc):
1. AN1: 4-20 mA: pressure sensor
2. AN2: 4-20 mA: auxiliary
pressure sensor
3. AN3: 4-20 mA / 0 - 10 Vdc
(settable by jumper C.C.): flow
sensor or temperature sensor
4. AN4: 4-20 mA / 0 - 10 Vdc
(settable by C.C.): trimmer for
frequency regulation
Digital outputs:
 motor run signal:
NO1, COM1: closed contact with motor
running.
NC1,COM1: closed contact with motor
stopped.
 alarm signal
NO2,COM2: opened contact without alarm.
NC2,COM2: closed contact without alarm.
 DOL1 pump relay:
NO3,COM3: closed contact with DOL1
running.
NC3,COM3: opened contact with DOL1
running.
 DOL2 pump relay:
NO4,COM4: closed contact with DOL2
running.
NC4,COM4: opened contact with DOL2
running.
Relays are no voltage contacts. Max.
voltage to the contacts is 250 V with max
current of 5 A.
RS485:
 S+
 S-
 G
It is recommended
to respect the
polarity linking
more VASCOs in
series.
Digital inputs:
 IN1
 IN2
 IN3
 IN4
 0V
We recommend using only no
voltage contacts.
Opening or closing the digital
contacts (depending on software
configuration set (see inst.
parameters) you can start or stop
the motor.