24 V Dc Voltage Supply - Bosch Rexroth IndraControl VDP 16.3 Project Planning Manual

IndraControl VDP 16.3, VDP 40.3, VDP 60.3 Operator Display
7.1.3

24 V DC voltage supply

NOTICE
No internal hubs are to be integrated into the connected USB device
(because of the additional runtime) so that the standard USB mode works
with a cable length of 30 m!
Cable length between control cabinet PC and VDP greater than 30 m
(extended USB mode)
The USB connection is executed in the limited full speed mode. Only
keyboards and mice can be connected to the VDP. No internal hubs may be
integrated into these USB devices. Other USB devices, such as memory
sticks, are not supported and may not be plugged in. Otherwise, the correct
function cannot be guaranteed. The S1 switch 2 must be in the "ON" position.
For information on the cable lengths related to the display resolution, refer to
the operating instructions of the Y-repeater R911336973.
X1S1
3 2 1
Fig. 7-3: Interface to the control cabinet PC
Pin
1
2
3
An ordinary 24 V power supply unit can be used.
NOTICE
In this case an isolated power supply unit is to be used.
There are two possibilities to connect the VDP 16.3/40.3/60.3 external
operator display to the 24 V voltage supply:
1. Connection to the 24 V Out of the external UPS (if available).
For this variant, the display and the control cabinet PC are switched off
at the same time by the UPS. The user can carry out actions manually
when there is a power failure of 24 V or if the control cabinet PC is
switched off while the PC is shut down.
2. Direct connection to the 24 V supply voltage.
Malfunctions in the standard USB mode
caused by hubs!
X1S1
Potential-free
1
DC +24 V
power supply unit
2
GND
3
N.C./DIS
Function
+24 V supply voltage
0 V supply voltage
If the CDI interface is available: n. c.
If the CDI+ interface is available: DIS
If the distance between VDP and control
cabinet PC exceeds 50 m, equalizing
currents can flow when using a non-isolated
power supply unit, as pin 2 is internally
connected to the housing.
R911323862_Edition 07 Bosch Rexroth AG
37/57
Interfaces