equipment itself, install it in the connector at the equipment side of the
cable.
If the analog input at the destination equipment only accepts a single-ended
signal (not recommended), connect the input to the analog output at the
system housing, and connect the ground of the destination equipment to the
AGND pin in the connector at the system housing via a 100Ω resistor. Note
that this resistor connects the internal ground of the system housing to the
internal ground of the destination equipment. A resistor in this ground
connection is recommended to prevent unwanted stray currents. However,
this resistor may well influence the accuracy of the analog signal.
Never connect the GND or minus wire of these signals to other GND
connections, otherwise malfunction of the module is possible.
9.10 Fdig, Dig – 24V power supply for Fast digital I/O and Digital
I/O connections
The 24V SELV power supply for the fast digital I/O and all digital I/O connections
are on the connectors "DIG", "FDIG" and "DIG/FDIG".
The system housing has no provisions against
wrong polarity connection of the 24V I/O power
supply voltage.
NOTICE
Observe proper polarity when connecting the 24V I/O power supply.
A fuse must be installed between the 24V SELV power supply output voltage and
the 24V I/O power input voltage. The rating of the fuse depends on the used
cables and total current.
Current [DC]
UL recognized fuse
[nominal DC current]
IEC certified fuse
[nominal DC current]
4.5A
6A
5A
Tab. 9-9: Fuse ratings for 24V power supply (Fast digital I/O and Digital I/O)
Fuses must be certified for DC rating, Fast Acting, and have to be UL recognized
under CCN JDXY2/8 or IEC 60127-1 certified. Secondary fuses also have to be
UL or IEC certified for DC rating.
Wire gauge and wire diameter as a function of ambient temperature are derived
from the NFPA-79:2012. Insulation temperature of wires is assumed to be 60 °C
(140 °F) or 75 °C (167 °F)
All external connected inputs and outputs shall be separated from hazardous
live by double or reinforced insulation.
20/45
Interfacing
NYCe 4000 Multi-axis motion control
system
Bosch Rexroth AG R911337318_Edition 09
