06.03
2.13 ADI4 (analog drive interface for 4 axes) (SW 09.01 and higher)
2-120
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
The external power supplies for the ADI4 module, the digital outputs, and op-
tionally the digital inputs must meet the specifications in Table 2-30.
Table 2-37
Specification of the external power supplies
Supply voltage
1)
P24EXT1
P24EXT2
P24OUText
Voltage
minimum
18.5V
nominal
24V
max.
30.2V
Ripple
max.
3.6Vpp
Current load
typical
0.5A
–
0.1A
max.
1A
8A
1A
Power consumption
typical
12W
–
3.02W
max.
30.2W
241.6W
30.2W
1) P24EXT1:
Supply voltage of the ADI4 module
P24EXT2:
Supply voltage for the digital outputs
P24OUText: Optional supply voltage for the digital inputs
Caution
The external power supply voltages must be generated as functional extra-low
voltages with safe electrical isolation (DIN EN 60204-1, Section 6.4, PELV).
On the module side, power supplies P24EXT1 and P24EXT2 must be protected
against:
S
Overvoltage
S
Short-circuit (elec. current limitation of the outputs)
S
Polarity reversal
S
Overload
–
P24EXT1: Fuse 2.5A/250V
–
P24EXT2: Fuse 8A/125V.
Specification of
the power supplies
(+24VDC)
2 Hardware Descriptions