Electrical Connection¶
The electrical connection is established out by using the 20-pin Interfast connector. For further information, refer to the Interfast documentation.
The assignment of the terminals:
| Terminal | Signal | Description |
|---|---|---|
| 1 | C0 | Input/output signal C0 |
| 2 | C1 | Input/output signal C1 |
| 3 | C2 | Input/output signal C2 |
| 4 | C3 | Input/output signal C3 |
| 5 | C4 | Input/output signal C4 |
| 6 | C5 | Input/output signal C5 |
| 7 | C6 | Input/output signal C6 |
| 8 | C7 | Input/output signal C7 |
| 9 | C8 | Input/output signal C8 |
| 10 | C9 | Input/output signal C9 |
| 11 | C10 | Input/output signal C10 |
| 12 | C11 | Input/output signal C11 |
| 13 | C12 | Input/output signal C12 |
| 14 | C13 | Input/output signal C13 |
| 15 | C14 | Input/output signal C14 |
| 16 | C15 | Input/output signal C15 |
| 17 | UP | Process voltage UP +24 V DC |
| 18 | ZP | Process voltage ZP 0 V DC |
| 19 | UP | Process voltage UP +24 V DC |
| 20 | ZP | Process voltage ZP 0 V DC |
Note
The arrow located next to the Interfast connector marks terminal 1.
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 DC561.
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.
Note
If DC561 with index A0 is used, the process supply voltage must stem from the same source as the power supply voltage of the CPU. The index consists of 1 letter, followed by 1 digit, and can be found on the type plate of the module next to the type designator “DC561”.
The module provides several diagnosis functions DC561 - Digital Input/Output Module.
The meaning of the LEDs is described in the section State LEDs DC561 - Digital Input/Output Module.