Vacon NX Service Manual

Fault codes and software
email: service@vacon.com Tel: +358 (0)201 212 575 Fax: +358 (0)204 335 091
87
4
F2
Over
volt-
age
fault
S1 1=Power
2=Power
1
3=Power
2
1=Unit Information
from the ASIC
circuit. Voltage
level too high.
Signal: ASIC-
UTR.
1. Check the process
control.
2. Check the parame-
ters.
-Braking time too fast.
- Overvoltage controller
disabled.
3. Check the unit type,
does it include a brake
chopper and a resistor.
S2 1=Power 1=Unit U^2*t protec-
tion. In the unit
690V, DC-link
voltage has been
over 1100V too
long time. Over-
voltage protec-
tion of DC-link
capacitors.
1. Check the parame-
ters.
- Change longer Decel-
eration time
- Check if the brake
chopper is in use
2. Reboot the unit.
3. Defect apperas out-
side of the unit:
- Mains changes (voltage
spikes in supply volt-
age).
- Check the motor load
and dimensions.
- Break resistor too
small.
TABLE 16. System software fault codes
Code Sub
code
Module Sub
module
Explanation Fault mode

Vacon NX Specifications

General

Product Type	AC Drive
Control Method	Scalar Control
Enclosure	IP00, IP21
Communication	Ethernet
Safety	STO (Safe Torque Off)
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short Circuit
Ambient Temperature Range	-10°C to +50°C (with derating above +40°C)
Cooling Method	Air-cooled, Liquid-cooled