Migration of Lenze Inverter Drives 8200/8400
The behavior of the Lenze Inverter Drives 8200/8400 in case of automatic DC braking is different: In case of these inverters, after the auto DCB hold time has elapsed, the motor is deenergized (by means of pulse inhibit) until the setpoint exceeds the auto DCB operating threshold. In order to make a migration to the i500 inverter series easier, the setting 0x2B84:006 (P704.06) = "1" serves to activate the same behavior in the i500.
The following example illustrates the behavior of the function if 0x2B84:006 (P704.06) = "1".
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Parameter
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Name
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Setting for this example
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Enable inverter
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Constant TRUE [1]
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Run
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Digital input 1 [11]
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Reverse rotational direction
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Digital input 3 [13]
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Stop method
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Standard ramp [1]
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Current
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50%
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Automatic hold time
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10 s
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Automatic operating threshold
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10 Hz
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Inverter disable
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1
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The status signals can be assigned to digital outputs.
 Configure digital outputs |
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①
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If the setpoint falls below the operating threshold set in 0x2B84:003 (P704.03), the DC braking gets active for the hold time set in 0x2B84:002 (P704.02).
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②
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After the hold time has elapsed, the power section is switched off.
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③
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If the setpoint exceeds the operating threshold again, the power section is switched on again. The motor is accelerated to the setpoint again.
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