Electrical Connection¶
The input module DI572 can be connected to the following devices via \ the I/O-Bus connector:
- S500 Bus Modules (e.g. CI592-CS31, CI501-PNIO, CI541-DP, CI581-CN)
- AC500 CPUs (PM5xx)
- Other AC500 I/O Modules
Note
The DI572 must not be used as a remote expansion module at DC505-FBP and CI590-CS31-HA Bus Modules.
Note
Mounting, disassembling and electrical connection for the I/O Modules are described in detail in the S500 System Data Overview S500 System Data, Overview.
The electrical connection is carried out by using a removable 9-pole and 11-pole Terminal Block. These Terminal Blocks differ in their connection system (spring terminals or screw-type terminals, cable mounting from the front or from the side) TA563-TA565 Terminal Blocks for AC500-eCo I/O Modules and AC500-eCo \ CPUs.The Terminal Blocks are not included in the module’s scope of delivery and must be ordered separately.
Block diagram for the internal construction of the digital inputs.
| Terminal | Signal | Meaning |
|---|---|---|
| 1 | I0 | Input signal I0 |
| 2 | I1 | Input signal I1 |
| 3 | I2 | Input signal I2 |
| 4 | I3 | Input signal I3 |
| 5 | I4 | Input signal I4 |
| 6 | I5 | Input signal I5 |
| 7 | I6 | Input signal I6 |
| 8 | I7 | Input signal I7 |
| 9 | N0..7 | Neutral conductor for the input signals I0..I7 |
| 10 | I8 | Input signal I8 |
| 11 | I9 | Input signal I9 |
| 12 | I10 | Input signal I10 |
| 13 | I11 | Input signal I11 |
| 14 | I12 | Input signal I12 |
| 15 | I13 | Input signal I13 |
| 16 | I14 | Input signal I14 |
| 17 | I15 | Input signal I15 |
| 18 | N8..15 | Neutral conductor for the input signals I8..I15 |
| 19 | — | Reserved |
| 20 | — | Reserved |
The internal power supply voltage for the module’s circuitry is carried out via the I/O-Bus (provided by a Bus Module or a CPU). Thus, the current consumption from 24 V DC power supply at the terminals L+/UP and M/ZP of the CPU/Bus Module increases by 10 mA per DI572.
An external power supply connection is not needed.
Warning
:strong:Danger of life through electric shock!
The terminals of the module can carry 240 V voltage.
Make sure that all voltage sources (supply and process voltage) are switched off before you are beginning with operations at the system.
Caution
:strong:Risk of damaging the PLC modules!
The PLC modules can be damaged by overvoltages and short circuits.
- Make sure that all voltage sources (supply and process voltage) are switched off before you are beginning with operations at the system.
- Never connect any voltages or signals to reserved terminals (marked with —). Reserved terminals may carry internal voltages.
Caution
:strong:Risk of damaging the PLC modules!
The PLC modules must not be removed when the plant is powered on.
Make sure that all voltage sources (supply and process \ voltage) are switched off before you are:
- connecting or disconnecting any signal or terminal block,
- removing or replacing a module.
The module provides several diagnosis functions Digital Input Module DI572.
Electrical connection of DI572.
Caution
:strong:Risk of damaging the PLC modules!
The PLC modules are destroyed by connecting a voltage > 240 V.
Make sure that all inputs are supplied from the same phase. The module must not be connected to a 400 V voltage.