Technical item or function
Technical data
Protections
Overvoltage trip limit
The 240 volt drives: 437 V DC
The 500 volt drives: 911 V DC
The 690 volt drives: 1200 V DC
Undervoltage trip limit
Mains voltage 240 V: 183 V DC.
Mains voltage 500 V: 333 V DC.
Mains voltage 690 V: 461 V DC.
Ground fault protection
If there is a ground fault in the motor or motor cable, only the AC drive
is protected.
Mains supervision
Trips if some of the input phases are missing
Motor phase supervision
Trips if some of the output phases are missing
Overcurrent protection
Yes
Unit overtemperature protection
Yes
Motor overload protection
Yes.
(1)
The motor overload protection activates at 110% of the full load cur-
rent.
Motor stall protection
Yes
Motor underload protection
Yes
Short-circuit protection of +24 V
and +10 V reference voltages
Yes
Drive enclosure ma-
terials
Paint color codes for the enclosure:
•
Dark grey = NCS 7010-R90B (Pantone 7546C)
•
Blue = NCS S3020-B
1
For the motor thermal memory and the memory retention function to obey the UL 508C requirements, use the system software version NXS00001V175, NXS00002V177, or
NXP00002V186 or a newer version. If an older system software is used, install a motor overtemperature protection to comply with the UL regulations.
12.9 Brake Chopper Ratings
12.9.1 Brake Chopper Ratings
For brake chopper rating tables, see:
•
12.9.2 Brake Chopper Ratings for Mains Voltage 208–240 V
•
12.9.3 Brake Chopper Ratings for Mains Voltage 380–500 V
•
12.9.4 Brake Chopper Ratings for Mains Voltage 525–690 V
•
12.9.5 Internal Brake Resistors, FR4–FR6 (380–500 V)
For more information, see VACON
®
NX Brake Resistors User Manual.
Specifications
Operating Guide | VACON® NXS/NXP Air-cooled
AQ275638903263en-000301 / DPD00910
194 | Danfoss A/S © 2020.02