Table 59: The technical data of the Vacon
®
NXS and NXP AC drive
Technical item or function
Technical data
Protections
Overvoltage trip limit
The 240-volt drives: 437 VDC
The 500-volt drives: 911 VDC
The 690-volt drives: 1200 VDC
Undervoltage trip limit
Mains voltage 240 V: 183 VDC
Mains voltage 400 V: 333 VDC
Mains voltage 500 V: 460 VDC
Earth fault protection
If there is an earth fault in the motor or motor cable,
only the AC drive is protected.
Mains supervision
Trips if some of the input phases is missing
Motor phase supervision
Trips if some of the output phases is missing
Overcurrent protection
Yes
Unit overtemperature
protection
Yes
Motor overload protection Yes. * The motor overload protection activates at 110%
of the full load current.
Motor stall protection
Yes
Motor underload protec-
tion
Yes
Short-circuit protection of
+24 V and +10 V reference
voltages
Yes
* = For the motor thermal memory and the memory retention function to obey the UL 508C
requirements, you must use the system software version NXS00001V175, NXS00002V177 or
NXP00002V186 or a newer version. If you use an older system software version, you must
install a motor overtemperature protection to obey the UL regulations.
9.3
THE COMPLIANCE WITH THE PRODUCT STANDARD IEC/EN 61800-3 + A1
The product standard IEC/EN 61800-3 + A1 has 5 categories. The Vacon AC drives are divided
into 5 classes that have equivalents in the standard.
TECHNICAL DATA FOR NXS AND NXP
VACON · 145
24-HOUR S358 (0)201 212 575 · EMAIL: VACON@VACON.COM
9
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com