Electrical Connection¶
The electrical connection is carried out by using a removable 9-pin and 11-pin terminal block. These terminal blocks differ in their connection system TA563-TA565 - Terminal Blocks (spring terminals or screw terminals, cable mounting from the front or from the side). 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 inputs and outputs:
| Terminal | Signal | Description |
|---|---|---|
| 1 | — | Reserved |
| 2 | C0 | Input/output signal C0 |
| 3 | C1 | Input/output signal C1 |
| 4 | C2 | Input/output signal C2 |
| 5 | C3 | Input/output signal C3 |
| 6 | C4 | Input/output signal C4 |
| 7 | C5 | Input/output signal C5 |
| 8 | C6 | Input/output signal C6 |
| 9 | C7 | Input/output signal C7 |
| 10 | — | Reserved |
| 11 | C8 | Input/output signal C8 |
| 12 | C9 | Input/output signal C9 |
| 13 | C10 | Input/output signal C10 |
| 14 | C11 | Input/output signal C11 |
| 15 | C12 | Input/output signal C12 |
| 16 | C13 | Input/output signal C13 |
| 17 | C14 | Input/output signal C14 |
| 18 | C15 | Input/output signal C15 |
| 19 | UP | Process voltage UP +24 VDC |
| 20 | ZP | Process voltage ZP 0 VDC |
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 DC562.
The external power supply connection is carried out via the UP (+24 VDC) and ZP (0 VDC) terminals.
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.
Note
Process supply voltage must be connected to UP/ZP of the module. The inputs and UP/ZP must use the same power supply.
The following figure shows the electrical connection of the digital input/output module DC562:
In this connection example, the inputs/outputs C0…C7 are connected as inputs and the inputs/outputs C8…C15 are connected as outputs.
The module provides several diagnosis functions DC562 - Digital Input/Output Module.
The meaning of the LEDs is described in the section State LEDs DC562 - Digital Input/Output Module.