The DC braking feature can provide | + |
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additional stopping torque when | Running |
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| Free run |
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| DC braking |
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compared to a normal deceleration to a |
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stop. DC braking is particularly useful | 0 |
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at low speeds when normal decelera- |
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tion torque is minimal. When you |
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enable DC braking, the inverter injects – |
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| A 53 |
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| A 55 |
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a DC voltage into the motor windings
during deceleration below a frequency you can specify (A_52). The braking power (A_54) and duration (A_55) can both be set. You can optionally specify a wait time before DC braking (A_53), during which the motor will free run (coast).
CAUTION: Be careful to avoid specifying a braking time that is long enough to cause motor overheating. If you use DC braking, we recommend using a motor with a
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| “A” Function | Run |
| Defaults |
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| ParametersDrive |
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Func. | Name / | Description | Mode | Units |
| Configuring | |||||
Edit |
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Code | SRW Display | (CE) | (UL) | (Jpn) |
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A_51 | DC braking enable | Two options; select codes: | ✘ | 00 | 00 | 00 | — |
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| 00 ...Disable |
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| DCB SW | OFF |
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| 01 ...Enable |
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A_52 | DC braking frequency | The frequency at which DC | ✘ | 0.5 | 0.5 | 0.5 | Hz |
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| setting |
| braking occurs, |
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| range is 0.5 to 10 Hz |
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| DCB F | 00.5Hz |
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A_53 | DC braking wait time | The delay from the end of Run | ✘ | 0.0 | 0.0 | 0.0 | sec. |
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| command to start of DC |
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| DCB WAIT | 0.0s |
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| braking (motor free runs until |
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| DC braking begins) |
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A_54 | DC braking during | Applied level of DC braking | ✘ | 0 | 0 | 0 | % |
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| deceleration |
| force, settable from 0 to 100% |
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| DCB V | 000 |
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A_55 | DC braking time for | Sets the duration for DC | ✘ | 0.0 | 0.0 | 0.0 | sec. |
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| deceleration |
| braking, range is 0.1 to 60.0 |
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| seconds |
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| DCB T | 00.0s |
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