Parameter Descriptions 2-37
7000-TD002A-EN-P – September 2007
CT Ratio Ground Fault [CT Ratio Gndflt]
Linear Number: 157
Default Value: 2000
Minimum Value: 10
Maximum Value: 10000
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the ratio of the current transformer used to measure the ground fault (zero
sequence) current at the input of the drive.
CT Burden Line [CT Brden Line]
Linear Number: 151
Default Value: 5.0 ohms
Minimum Value: 1.0 ohms
Maximum Value: 100.0 ohms
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the value of the burden resistors for the line current feedback. The default value
of burden resistor on the CT input connector is 5 ohms. For drives with a higher current rating, 2.5 ohms
may be required. This is accomplished by placing a 5-ohm resistor in parallel.
CT Ratio Line [CT Ratio Line]
Linear Number: 149
Default Value: 1000
Minimum Value: 10
Maximum Value: 10000
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the ratio of the current transformers used for the line current feedback.
Hall Effect Current Sensor Burden DC Link [HECS Brden DCLnk]
Linear Number: 285
Default Value: 50.0 ohms
Minimum Value: 1.0 ohms
Maximum Value: 100.0 ohms
Access Level: Service
Read/Write: Read/Write when Stopped
This parameter specifies the value of the burden resistor for the DC link reactor current feedback. The
default value of burden resistor on the HECS input connector is 50 ohms. For drives with a higher current
rating, 25 ohms may be required. This is accomplished by placing a 50-ohm resistor in parallel.
Hall Effect Current Sensor Ratio DC Link [HECS Ratio DCLnk]
Linear Number: 284
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 for the DC link reactor current feedback.
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