Electrical installation 97
Connection examples of two-wire and three-wire sensors
PID macros (see ACS560 firmware manual (3AXD50000016097 [English])) use
analog input 2 (AI2). The macro wiring diagrams on these pages use an externally
powered sensor (connections not shown). The figures below give examples of
connections using a two-wire or three-wire sensor/transmitter supplied by the drive
auxiliary voltage output.
Note: Maximum capability of the auxiliary 24 V DC (250 mA) output must not be
exceeded.
Note: The sensor is supplied through its current output and the drive feeds the supply
voltage (+24 V DC). Thus the output signal must be 4…20 mA, not 0…20 mA.
X1
5 AI2 Process actual value measurement or reference,
0(4)…20 mA, R
in
= 100 ohm
6AGND
…
10 +24V Auxiliary voltage output, non-isolated,
+24 V DC, max. 250 mA
11 DGND
4…20 mA
Two-wire sensor/transmitter
+
-
P
I
X1
5 AI2 Process actual value measurement or reference,
0(4)…20 mA, R
in
= 100 ohm
6AGND
…
10 +24V Auxiliary voltage output, non-isolated,
+24 V DC, max. 250 mA
11 DGND
(0)4…20 mA
Three-wire sensor/transmitter
+
-
OUT
P
I
DI5 as frequency input
See section Digital inputs DI1…DI6 (page 156) for which digital input can be used
as a frequency input in the drive. For setting the parameters for the digital
frequency input, see
ACS560 standard control program firmware manual
(3AXD50000044997 [English]).
AI1 and AI2 as Pt100 sensor inputs (X1)
One, two or three Pt100 sensors for motor temperature measurement can be
connected between an analog input and output as shown below. Do not connect
both ends of the cable shields directly to ground, nor connect the capacitor at one
end to the ground and another end directly to ground.
98 Electrical installation
DI5 as frequency input
See section Digital inputs DI1…DI6 on page 138 for which digital input can be used
as a frequency input in the drive.For setting the parameters for the digital frequency
input, see ACS560 standard control program firmware manual (3AXD50000044997
[English]).
AI1 and AI2 as Pt100 sensor inputs (X1)
One, two or three Pt100 sensors for motor temperature measurement can be
connected between an analog input and output as shown below. Do not connect both
ends of the cable shields directly to ground, nor connect the capacitor at one end to
the ground and another end directly to ground.
WARNING! As the inputs pictured above are not insulated according to IEC 60664, the
connection of the motor temperature sensor requires double or reinforced insulation
between motor live parts and the sensor. If the assembly does not fulfill the requirement, the I/O
board terminals must be protected against contact and must not be connected to other
equipment or the temperature sensor must be isolated from the I/O terminals.
Safe torque off (X4)
For the drive to start, both connections (+24 V DC to IN1 and +24 V DC to IN2) must
be closed. By default, the terminal block has jumpers to close the circuit. Remove the
jumpers before connecting an external Safe torque off circuitry to the drive. See
chapter Safe torque off function on page 167.
Note: Only 24 V DC can be used for STO. Only PNP input configuration can be used.
1…3 × Pt100
3.3 nF
>
630VAC
AIn
AGND
AOn
AGND
1)
2)
T
TT
1) Set the appropriate analog input unit to V (volt) in parameter group 12 Standard AI.
2) Select the excitation mode in parameter group 13 Standard AO.
110 Electrical installation
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