Terminal
Signal
Description
15
O1U+
Voltage output of channel 1
16
O1I+
Current output of channel 1
17
O01-
Negative pole of channels O0 and O1
18
SG
Shield grounding
19
L+
Process voltage L+ (24 V DC)
20
M
Process voltage M (0 V DC)
The internal power supply voltage for the module's circuitry is carried out via the I/O bus
(provided by a communication interface module or a CPU). Thus, the current consumption from
24 V DC power supply at the terminals UP/L+ and ZP/M of the CPU/communication interface
module increases by 5 mA per AX561.
The external power supply connection is carried out via the L+ (+24 V DC) and the M (0 V DC)
terminals. The M terminal is interconnected to the M/ZP terminal of the CPU/communication
interface module.
NOTICE!
Risk of imprecise and faulty measurements!
Analog signals may be distorted seriously by external electromagnetic influ-
ences.
Use shielded wires when wiring analog signal sources. The cable shield must
be grounded at both ends of the cable. Provide a potential equalisation of a
low resistance to avoid high potential differences between different parts of the
plant.
WARNING!
Removal/Insertion under power
The devices are not designed for removal or insertion under power. Because of
unforeseeable consequences, it is not allowed to plug or unplug devices with
the power being ON.
Make sure that all voltage sources (supply and process voltage) are switched
off before you
–
connect or disconnect any signal or terminal block
–
remove, mount or replace a module.
Disconnecting any powered devices while energized in a hazardous location
could result in an electric arc, which could create a flammable ignition resulting
in fire or explosion.
Make sure that power is removed and that the area has been thoroughly
checked to ensure that flammable materials are not present prior to proceeding.
The devices must not be opened when in operation. The same applies to the
network interfaces.
NOTICE!
Risk of damaging the PLC modules!
Overvoltages and short circuits might damage the PLC modules.
–
Make sure that all voltage sources (supply voltage and process supply
voltage) are switched off before you begin with operations on the system.
–
Never connect any voltages or signals to reserved terminals (marked with
---). Reserved terminals may carry internal voltages.
Device specifications
I/O modules > Analog I/O modules
2022/01/31
3ADR010278, 3, en_US
396