Other Interfaces - Bosch rexroth NYCe 4000 Instruction Manual

NYCe 4000 Linear motion control sys-
tem
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]
4.5A 6A
Tab. 9-9: Fuse ratings for 24V power supply (Digital/Fast 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.
Shielded cables are mandatory for fast digital I/O connections. Shielded cables
are recommended but not mandatory for digital I/O connections. If shielded
cables are used, connect the shield at the system housing side to the connector
housing. Connect the other end to a convenient metal part or leave it not
connected.
For fast digital I/O signals, the cable with the signal wire(s) should also contain
the return current path for every signal in the cable. It is allowed that a single
wire carries the return currents for more than one signal, as long as the current
rating of the wire is not exceeded. These measures are also recommended for
the other digital I/O.

9.12 Other interfaces

The system housing always has a Motion Control Unit (MCU) installed in the
leftmost slot, and one or two NY4120/10 drive modules in the adjacent slots.
The MCU has connections available to connect to other system housing(s)
and/or a PC. Depending on the MCU type the connection is Ethernet or IEEE
1394b. More information can be found in the NYCe 4000 Project Planning
manuals.
IEC certified fuse
[nominal DC current]
5A
R911383227_Edition 04 Bosch Rexroth AG
17/33
Interfacing