Connection examples of two-wire and three-wire sensors
The figures give examples of connections for a two-wire or three-wire
sensor/transmitter that is supplied by the auxiliary voltage output of the drive.
P
I
-
+
4…20 mA
AI2
AGND
+24V
DGND
Process actual value measurement or reference, 4 … 20 mA, R
in
= 205 ohm.
Note: The sensor power supply comes through its current output circuit, use
4 … 20 mA signal, not 0 … 20 mA.
AI2
AGND
Auxiliary voltage output, non-isolated, +24 V DC, max. 100 mA+24V
DGND
Process actual value measurement or reference, 0(4)…20 mA, R
in
= 205 ohmAI2
AGND
Auxiliary voltage output, non-isolated, +24 V DC, max. 100 mA+24V
DGND
Safe torque off
For the drive to start, both STO connections (S+ to S1 and S+ to S2) must be closed.
By default, the terminal block has jumpers to close the circuit. Remove the jumpers
before connecting external Safe torque off circuitry to the drive. See chapter The
Safe torque off function.
Communication mode jumper J2
The drive with below hardware revision doesn't have J2, and does not need to
switch between panel and Modbus mode.
• ACS180-04S-25A0-2/4,
ACS180-04S-01A8/02A4/03A3/04A0/05A6/07A2/09A4-4: hardware revision
C or later
• Other types ACS180-04S-xxxx: hardware revision B or later
For hardware revision information, refer to Type designation label (page 32).
78 Electrical installation
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