Parameter Descriptions 2-39
7000-TD002A-EN-P – September 2007
Series Rectifier Devices [Series RecDvc]
Linear Number: 145
Default Value: 2
Minimum Value: 1
Maximum Value: 6
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the number of series power semiconductor devices (SCR or SGCT) in each of
the 6 legs (6 Pulse or PWM) or 18 legs (18 Pulse) of the line converter. SGCTs are used in drives with
PWM rectifier front end.
Series Inverter Devices [Series InvDvc]
Linear Number: 146
Default Value: 2
Minimum Value: 1
Maximum Value: 6
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the number of SGCT devices connected in series in each of the 6 legs of the
machine converter.
Neutral Resistor Value [Neutral Resistor]
Linear Number: 680
Default Value: 0.0 ohms
Minimum Value: 0.0 ohms
Maximum Value: 6553.5 ohms
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter is for Direct-to-Drives only and defines the resistance of the Neutral Resistor in ohms. If
the value if 0 (default value) then the software configures the drive to be without a common mode choke.
Neutral Resistor Power Rating [RNeut Pwr Rating]
Linear Number: 681
Default Value: 1500 W
Minimum Value: 0 W
Maximum Value: 65535 W
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter is for Direct-to-Drives only and defines the rated wattage of the Neutral Resistor. This
parameter is used in the thermal protection of the Neutral Resistor.
Hall Effect Current Sensor Ratio for Neutral Current [HECS Ratio RNeut]
Linear Number: 198
Default Value: 4000
Minimum Value: 10
Maximum Value: 10000
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the ratio of the current transducer used to measure the current in the neutral
resistor (Direct-to-Drive only). This parameter is reserved for future use only.
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