Electrical Connection¶
The electrical connection is carried out by using removable 9-pin and 11-pin terminal blocks. These terminal blocks differ in their connection system (spring terminals or screw terminals, cable mounting from the front or from the side). For more information, please refer to the chapter Terminal Blocks for S500-eCo I/O Modules TA563-TA565 - Terminal Blocks. The terminal blocks are not included in the module’s scope of delivery and must be ordered separately.
The following block diagram shows the internal construction of the digital outputs:
| Terminal | Signal | Description |
|---|---|---|
| 1 | O0 | Output signal O0 |
| 2 | N0 | Neutral conductor for the output signal O0 |
| 3 | O1 | Output signal O1 |
| 4 | N1 | Neutral conductor for the output signal O1 |
| 5 | — | Reserved |
| 6 | O2 | Output signal O2 |
| 7 | N2 | Neutral conductor for the output signal O2 |
| 8 | O3 | Output signal O3 |
| 9 | N3 | Neutral conductor for the output signal O3 |
| 10 | — | Reserved |
| 11 | O4 | Output signal O4 |
| 12 | N4 | Neutral conductor for the output signal O4 |
| 13 | O5 | Output signal O5 |
| 14 | N5 | Neutral conductor for the output signal O5 |
| 15 | — | Reserved |
| 16 | O6 | Output signal O6 |
| 17 | N6 | Neutral conductor for the output signal O6 |
| 18 | O7 | Output signal O7 |
| 19 | N7 | Neutral conductor for the output signal O7 |
| 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 VDC power supply at the terminals L+/UP and M/ZP of the CPU/bus module increases by 10 mA per DO572.
An external power supply connection is not needed.
Warning
:strong:Risk of death by 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 begin with operations at the system.
Warning
:strong: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.
Attention
:strong: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.
The following figure shows the electrical connection of the module:
Attention
:strong:Risk of damaging the PLC modules!
The PLC modules will be irreparably damaged if a voltage > 240 V is connected.
Make sure that all inputs are fed from the same phase. The module must not be connected to a 400 V voltage.
The module provides several diagnosis functions (see chapter Diagnosis DO572 - Digital Output Module).
The meaning of the LEDs is described in the section State LEDs DO572 - Digital Output Module.