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HOME ⊙ ABB ⊙ Maintenance and troubleshooting of ABB DCS DC speed controller
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Maintenance and troubleshooting of ABB DCS DC speed controller

F: | Au:FANS | DA:2026-10-29 | 18 Br: | 🔊 点击朗读正文 ❚❚ ▶ | Share:

5.4 Encoder wiring troubleshooting

If the device has a missing or non-linear "TACHO-PULSES" signal, first check the encoder power supply. For differential encoders, it is recommended to connect Sense power and Sense GND signals to achieve cable voltage drop compensation. If a Tacho error alarm occurs during startup and the phase of the positive transfer to the set TACHO-PULSES signal is incorrect, it is usually necessary to swap the A phase and A - of the encoder (differential encoder), or swap the A and B channels (non differential encoder).

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