Brake
Vacon · NXS NXP
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The actual status feedback from the mechanical brake (e.g., open/closed) does not match the drive's control signal for the brake. This indicates a malfunction in the brake mechanism, its feedback sensor, or the associated wiring. A malfunctioning brake poses a safety risk and can prevent proper machine operation or holding.
Vanlige årsaker
- Mechanical brake wear or damage preventing full engagement or disengagement.
- Brake feedback switch (e.g., limit switch) faulty, stuck, or misaligned.
- Drive output voltage to brake coil (e.g., 24VDC) lost or below required level.
- Brake coil internal short circuit or open circuit preventing proper current flow.
- Parameter P3-12 (Brake control type) incorrectly configured for the brake hardware.
Reparasjonssteg & Sjekkliste
Klikk på steg for å spore fremgangen.
- 1
Verify drive output voltage to brake coil terminals (e.g., X1:1, X1:2) matches specified voltage (e.g., 24VDC) when commanded open/closed.
- 2
Measure resistance of brake coil windings; compare to manufacturer's specifications (e.g., 20 Ohms).
- 3
Actuate brake manually (if possible) and visually confirm mechanical movement and feedback switch activation.
- 4
Test continuity of brake feedback switch contacts (e.g., on terminals X2:3, X2:4) in both open and closed states using a multimeter.
- 5
Check drive parameter P3-12 for correct brake control configuration (e.g., '0 = No brake', '1 = Dynamic brake').
- 6
Inspect brake mechanism for physical obstructions, wear, or damage to pads or spring assembly.