External voltage supply DC 24 V
The internal voltage supply is sufficient for the basic unit and digital outputs up to 200 mA (DO02: 150 mA; DO03: 50 mA). FBG11B, FSC11B / 12B and FSE24B with options DBG60B, USB11A or UWS21A / UWS21B can also be supplied by the internal voltage supply.
MOVITRAC® B can be supplied via an external DC 24 V voltage supply. This is useful, for example, with bus operation. The voltage supply must be sized large enough to also operate the digital outputs. Fieldbus options always require an external voltage supply.
In this case, you must always switch on the external DC 24 V power supply unit prior to the line contactor and after switching off the line contactor.
The DC 24V voltage output can be switched off with P808. External voltage supply continues to be possible.
INFORMATION
The MC07B...-S0 unit type must always be supplied with external voltage.
DC 24 V power demand of MOVITRAC® B:
Power demand per input terminal: 0.2 W.
Size | Power demand of basic
unitIncluding FBG11B, FSC11B / 12B (UWS11A / USB11A).
Take account of the additional load of the digital inputs with 2.4
W per 100 mA. | DBG60B | FIO11B / FIO21B | Fieldbus optionFieldbus options are: DFP21B, DFD11B,
DFE11B, ... | DHP11BThese options
must always be supplied externally. | DHE21B / DHE41B | FSE24B |
|---|---|---|---|---|---|---|---|
Size 0 MC07B..-00 | 3.8 W | 1 W | 2 W | 3.4 W | 4.5 W | 8.5 W | 1.2 W |
Size 0 MC07B..-S0The
unit type MC07B..-S0 must always be supplied by an external DC 24
V power supply unit via X17:1 and X17:2. | 10.8 W 3 W of the 12 W is the power
demand for the output stage via X17:3 SOV24, X17:4 SVI24. | ||||||
1, 2S, 2 | 15.8 W Including
current consumption for safe stop (X17) | ||||||
3 | 21.8 W Including
current consumption for safe stop (X17) | ||||||
4, 5 | 23.8 W Including
current consumption for safe stop (X17) |
INFORMATION
- When using an auxiliary voltage for the backup mode on VIO24, you must ensure that the backup voltage is always applied, or P808 is disconnected in mains operation because other units connected to VIO24 are otherwise supplied by MOVITRAC® B in mains operation without a backup voltage supply.
- The maximum current load for looping through the backup voltage supply from VIO24 / basic unit to VIO24 / FSC/FIO is 1 A.
