All drive power cables must be installed with some form of a strain relief
underneath the system housing. If the drive power cable has a shielding, this
shielding must make a good quality electrical contact with the strain relief
bracket.
Make sure that the power supply cable diameter is suitable for the maximum
rated current.
If the drive power supply for the drive modules NYM04.1-2PW-NNNN-NY4120
and NYM04.1-1HV-NNNN-NY4140 is not installed near the system housing, put a
warning on the connector at the drive power supply side stating that when the
connector is disconnected a high voltage can remain present on the pins of the
connector for 5 minutes.
A fuse must be installed between the power supply output voltage and the drive
power input voltage connection. The rating of the fuse depends on the used
cables and application requirements of the motion profiles.
●
Fuse rating for UL fuses.
Drive module
Drive current [DC]
Fuse nominal DC current
NY4120
12A
15A
NY4130 (+26/–26V power supply)
1A
2A
NY4130 (+15/–15V power supply)
2A
3A
NY4140
6A
8A
Tab. 9-4: UL Fuse ratings
Fuses must be certified for DC rating, Fast Acting, and have to be UL recognized
under CCN JDXY2/8. Secondary fuses also have to be UL certified for DC rating.
●
Fuse rating for IEC fuses.
Drive module
Drive current [DC]
Fuse nominal DC current
NY4120
12A
12A
NY4130 (+26/–26V power supply)
1A
1A
NY4130 (+15/–15V power supply)
2A
2A
NY4140
6A
6A
Tab. 9-5: IEC Fuse ratings
Fuses must be certified for DC rating, Fast Acting, and have to be IEC 60127-1
certified. Secondary fuses also have to be 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).
NYCe 4000 Multi-axis motion control
system
17/45
Interfacing
R911337318_Edition 09 Bosch Rexroth AG
