5.4.2 Circuit Breakers
Use a type B or type C circuit breaker with a capacity of 1.5 times the rated current of PSM 510 to fulfill CE requirements.
NOTICE
-
Circuit breakers are not allowed in installations where C-UL is required. Only UL recommended fuses are allowed.
5.5 Auxiliary Supply Requirements
Supply the PSM 510 with a power supply unit with an output of 24/48 V DC ±10% (PELV) and maximum 50 A (the actual current
depends on the modules used). The output required depends on the system topology. The output ripple of the power supply unit
must be <250 mV
pp
.
Refer to the VLT
®
Servo Drive System ISD 510, DSD 510, MSD 510 Design Guide for power rating shell diagrams.
NOTICE
-
Only use supply units that conform to the PELV specification.
-
Use a supply that is CE-marked according to the standards EN 61000-6-2 and EN 61000-6-4 or similar for industrial use.
-
The secondary circuit must be supplied from an external isolated source.
The 24/48 V DC external supply for auxiliary voltage must be dedicated to the MSD 510 system, meaning that the supply is used
exclusively for powering the PSM 510. The maximum cable length between the supply and the PSM 510 is 3 m.
5.5.1 Fuses
UL listed fuses are recommended to protect the wiring on 24–48 V DC.
Table 13: Fuses
CE Compliance (IEC 60364)
UL Compliance (NEC 2014)
Maximum fuse type
Maximum fuse type
50 A
(1)
63 A
(2)
1
If the maximum current is lower, a fuse with lower current rating can be used. Rating of IEC fuses: according to 100% of maximum current. Use a time delay fuse rated according to
the DC voltage used.
2
If the maximum current is lower, a fuse with lower current rating can be used. Rating of UL fuses: according to 125% of maximum current. Use a time delay fuse rated according to
the DC voltage used.
5.6 Safety Supply Requirements
Supply the STO line with a 24 V DC supply for industrial use with the following properties:
Electrical Installation
Operating Guide | VLT® Multiaxis Servo Drive MSD 510 System
AQ262450196490en-000101 / 175R1170
62 | Danfoss A/S © 2019.10
Содержание VLT MSD 510
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