06.03
2.13 ADI4 (analog drive interface for 4 axes) (SW 09.01 and higher)
2-114
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
S Supply voltage:
An external power supply source 24VDC must be connected to the power
supply of the digital outputs at X6-1, pin 1 (P24EXT2).
The reference ground of the external power supply source must be con-
nected with X6-1, pin 12 (MEXT2).
For further data, see Subsection 2.13.8, page 2-124.
S Electrical specification of the digital outputs:
Table 2-32 Electrical specification of the digital outputs
Digital outputs min. typical max. nominal
Voltage at high level (V
hi)
V
CC
– 3V
1)
V
CC
24V
Output current I
OUT
– – 500mA –
Voltage at low level (V
lo)
– – – 0V
Leakage current at low level – 50mA 400mA –
Signal delay T
PHL
and T
PLH
2)
– 0.5msec – –
S Power supply of the digital outputs
1) typical output voltage: V
CC
– I
OUT
<R
ON
– 0.65V
V
CC
: Current operating voltage P24EXT2
Max. output current I
OUT
: 500mA
Max. short-circuit current: 4A (max. 100msec, V
CC
= 24V)
Internal resistance R
ON
: 0.4W
S 2) The PROFIBUS communication time and the application cycle
time must also be taken into account.
S Incorrect polarization causes neither high level nor destruction of the outputs.
S General electrical properties
– Galvanic isolation using optocouplers
– Current limitation to max. 500mA
– Protection from: short-circuit, overtemperature, and loss of ground
– Automatic shutdown on undervoltage.
S Relay contact Ready signal “Ready”
The relay contact remains open/is opened
if one of the follwoing states is
present in the module:
– Initialization after Power On
– Power Failure or NMI
– No cyclic communication to DP master
– PLL error
– Synchronization error
– Overtemperature
The relay contact is closed
when the following conditions are satisfied:
– Module status “Ready”
– Cyclic communication with the DP master
2 Hardware Descri
tions
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