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Service Manual
DC 4Q A Series
3.4
RIN resistor (rated current adjustment)
Size drive (A)
Rated Current request (A)
RIP resistance limits the maximum current supplied by the converter. For the calculation see the
following table:
Resistance RIN limits the value of the rated current supplied by the drive. Normally has the same
value, of the stall current of DC motor. For the calculation see the following table:
Value of Rin in Kohm
Note * = No resistor mounted.
RIP resistor (Peak current adjustment)
Size drive (A)
Peak Current request (A)
Value of RIP in Kohm
Note * = No resistor mounted.
Rin value * 56 22 12 6,8 4,7 3,9 2,7 1,8 1,5 1
2/4 2 1,9 1,8 1,7 1,6 1,5 1,4 1,3 1,1 1 0,9
4/8 4 3,9 3,7 3,5 3,2 3 2,8 2,6 2,2 2,1 1,8
7/14 7 6,8 6,5 6 5,7 5,3 5 4,6 4 3,7 3,1
10/20 10 9,7 9,2 8,7 8,1 7,6 7,1 6,5 5,7 5,3 4,4
Rip value * 470 390 220 150 120 100 82 68 56 47
2/4 4 3,7 3,5 3,2 3 2,8 2,6 2,5 2,4 2,1 2
4/8 8 7,4 7 6,48 6 5,6 5,3 5 4,8 4,2 4
7/14 14 13 12,2 11,3 10,5 9,9 9,3 8,7 8,4 7,5 7
10/20 20 18,5 17,5 16,2 15 14,1 13,2 12,5 12 10,7 10
4.4 Current adjustement
Example: on a converter 7/14A, inserting a resistance RIP 150Kohm the maximum output current
will not be 14A, but 10.5A
Example: on a converter 7/14A, inserting a resistance RIN 6.8Kohm the rated output current will
not be 7A, but 5.7A
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