Parameter and variable descriptions 6-19 – Rockwell Automation 1557 MEDIUM VOLTAGE AC DRIVE User Manual
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PARAMETER AND VARIABLE DESCRIPTIONS
6-19
1557-UM050F-EN-P – June 2013
10 Converter Parameters
Series Thyristor Line [Series thy line]
Linear number:
145
Minimum value:
1
Maximum value:
6
Default value:
1
This parameter specifies the number of series thyristors in each of the 6 legs of the line converter.
Series Thyristor Motor [Series thy motor]
Linear number:
146
Minimum value:
1
Maximum value:
6
Default value:
1
This parameter specifies the number of series GTO thyristors in each of the 6 legs of the machine converter.
Redundant Thyristor Line [Redundt thy line]
Linear number:
147
Minimum value:
0
Maximum value:
1
Default value:
0
This parameter specifies the number of redundant thyristors in each of the 6 legs of the line converter.
Redundant Thyristor Motor [Redundt thy mtr]
Linear number:
148
Minimum value:
0
Maximum value:
1
Default value:
0
This parameter specifies the number of redundant GTO thyristors in each of the 6 legs of the machine
converter.
CT Ratio Line [CT ratio line]
Linear number:
149
Minimum value:
10
Maximum value:
10000
Default value:
200
This parameter specifies the ratio of the current transformers used for line current feedback.
CT Ratio Motor [CT ratio motor]
Linear number:
150
Minimum value:
10
Maximum value:
10000
Default value:
2500
This parameter specifies the ratio of the current transducers (LEMs) used for motor current feedback.