ABB AC500 PLC - Page 475

The external power supply connection is carried out via the UP (+24 VDC) and the ZP (0 VDC)
terminals.
NOTICE!
Risk of damaging the PLC modules!
Overvoltages and short circuits might damage the PLC modules.
– Make sure that all voltage sources (supply and process voltage) are
switched off before you begin with operations at the system.
– Never connect any voltages or signals to reserved terminals (marked with
---). Reserved terminals may carry internal voltages.
Generally, analog signals must be laid in shielded cables. The cable shields
must be earthed at both sides of the cables. In order to avoid unacceptable
potential differences between different parts of the installation, low resistance
equipotential bonding conductors must be laid.
Only for simple applications (low electromagnetic disturbances, no high require-
ment on precision), the shielding can also be omitted.
+
−
I0A 2.1
I0+ 2.0
I0− 1.0
I0B 1.1
I1A 2.3
I1+ 2.2
I1− 1.2
I1B 1.3
I2A 2.5
I2+ 2.4
I2− 1.4
I2B 1.5
I3A 2.7
I3+ 2.6
I3− 1.6
I3B 1.7
I4A 4.1
I4+ 4.0
I4− 3.0
I4B 3.1
I5A 4.3
I5+ 4.2
I5− 3.2
I5B 3.3
I6A 4.5
I6+ 4.4
I6− 3.4
I6B 3.5
I7A 4.7
I7+ 4.6
I7− 3.6
I7B 3.7
4 analog inputs for
−50 ... +50 mV
−500 ... +500 mV
−1 ... +1 V
−5 ... +5 V
−10 ... +10 V
0 ... +5 V
0 ... +10 V
−20 ... +20 mA
0 ... +20 mA
+4 ... +20 mA
Pt100, Pt1000
Ni1000
50 kΩ
Thermocouple Types
J, N, K, S, T
Digital input
AGND AGND
PTCPTC
1.8 2.8 3.8 4 .8
1.9 2.9 3.9 4 .9
+
−
+
−
+
−
+
−
+
−
+
−
+
−
UP +24 V
ZP 0 V
4 analog inputs for
−50 ... +50 mV
−500 ... +500 mV
−1 ... +1 V
−5 ... +5 V
−10 ... +10 V
0 ... +5 V
0 ... +10 V
−20 ... +20 mA
0 ... +20 mA
+4 ... +20 mA
Pt100, Pt1000
Ni1000
50 kΩ
Thermocouple Types
J, N, K, S, T
Digital input
Fig. 41: Terminal assignment of the module
The module provides several diagnosis functions Ä Chapter 1.5.2.2.2.7 “Diagnosis”
on page 493.
Device Specifications
I/O Modules > Analog I/O Modules
2019/04/17 3ADR010121, 13, en_US 475