Vacon NX Service Manual

Fault codes and software
email: service@vacon.com Tel: +358 (0)201 212 575 Fax: +358 (0)204 335 091
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FIGURE 14. Fault code F12
Measure resistance and
isolation resistance on
brake resistor and its
connections.
F12 Brake chopper supervision
Are all
measurements
OK?
NO
YES
Is brakechopper
maincircuit, OK?
YES
NO
F12 displayed.
Check logged
data in
fault history.
Internal fault: Replace
brake chopper and
power board.
Replace
brake resistor
and/or
cables.
FR4 - FR8
FR9 - FR13
Measure brakechopper
maincircuit.
No instructions
available.
Measure
brake chopper
gate circuit.
Is brake chopper
gate circuit, OK?
NO
Internal fault:
Check/correct cables
before replacing
power board.
YES

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