For a detailed description of the mounting, disassembly and connection of the module, please refer to the ⮫ installation instructions.
The connection is carried out by using the 40 terminals of the terminal unit TU515/TU516.
The internal power supply voltage for the circuitry of the module is carried out via the I/O bus (provided by a communication interface module or a CPU). Then, the current consumption from 24 V DC power supply at the terminals L+/UP and M/ZP of the CPU/communication interface module increases by 2 mA per DA501.
The external power supply connection is carried out via the UP (+24 V DC) and the ZP (0 V DC) terminals.
WARNING
Removal/Insertion under power
Removal or insertion under power is permissible only if all conditions for hot swapping are fullfilled.
⮫ “Replace an I/O module with hot swap”
The devices are not designed for removal or insertion under power when the conditions for hot swap do not apply. Because of unforeseeable consequences, it is not allowed to plug in or unplug devices with the power being ON.
Make sure that all voltage sources (supply and process voltage) are switched off before doing any of the following actions:
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Connect or disconnect any signal or terminal block.
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Remove, mount or replace a module.
Disconnecting any powered devices while they are energized in a hazardous location could result in an electric arc, which could create an ignition source resulting in fire or explosion.
Prior to proceeding, make sure that power is disconnected and that the area has been thoroughly checked to ensure that flammable materials or ignitable concentrations are not present.
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.
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Make sure that all voltage sources (supply voltage and process supply voltage) are switched off before you begin with operations on the system.
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Never connect any voltages or signals to reserved terminals (marked with ---). Reserved terminals may carry internal voltages.
NOTICE
Risk of damaging the PLC modules!
The PLC modules must not be removed while the plant is connected to a power supply.
Make sure that all voltage sources (supply and process voltage) are switched off before you do the following:
-
Connect or disconnect any signal or terminal block.
-
Remove or replace a module.
CAUTION
Risk of imprecise and faulty measurements!
Analog signals may be distorted seriously by external electromagnetic influences.
Use shielded wires when wiring analog signal sources. The cable shield must be grounded at both ends of the cable. Provide a potential equalization of a low resistance to avoid high potential differences between different parts of the plant.
Fig. 84: Terminal assignment of the module
1
I/O bus interface
2
Logic
3
Digital input
4
Digital input/output
5
Pole of analog input signal
6
Pole of analog output signal
7
Functional earth connection
The module provides several diagnosis functions.