Arfit TTP, Instruction Manual

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17
ELECTRICAL DIAGRAMS – EC FANS
-Scheme EC - 12 (Image 13):
Connector Connection Description
KL1
L1 Power - Phase 230 / 1 / 50
(See characteristics on the motor plate) N Power - Neutral
PE Ground
KL2
NO Status relay, normally opened, closes with alarm
COM Standard in the status relay
NC Status relay normally closed, opens with alarm
KL3
RSA
RS485 MODBUS RTU
RSB
GND Reference for interface (terminal 3 flow regulator ARFIT)
0-10V/PWM Control input 0 - 10V or PWM (Terminal 4 flow regulator ARFIT)
4-20mA Control input 4 - 20mA
+20V Power for external devices, max. 20mA (Connect to terminal 1 of the ARFIT flow regulator to
enable operation)
+10V Power for external devices, max. 10mA (terminal 5 flow regulator ARFIT)
OUT Status output of the fan 0-10V, max. 3mA
Image 13