Control Techniques FXM5, User Manual

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20
FXM5 User Guide
www.controltechniques.com Issue Number: 5
The maximum field current is derived as follows:
When the FXM5 controller is used with a Mentor II Drive, parameter 6.11 must be set at
the value stated in the table.
The FXM5 controller is supplied having two turns through the DCCT. (The number of
turns is defined by the number of times the wire passes through the hole in the DCCT).
4.4.2 Procedure
Set the value of I
F
max at the nearest value above the maximum required field current.
At a later stage, you can set the maximum field current at the required value using the
SET MAX FIELD potentiometer or parameter 6.08.
Maximum field
current
Number of primary
turns
LK1 setting Setting of
parameter 6.11
15/Np 20/Np
1 10
ü
1
2 10
ü
2
3 5
ü
3
4 5
ü
4
5 4
ü
5
6 3
ü
6
7 2
ü
7
8 2
ü
8
9 2
ü
9
10 2
ü
10
11 1
ü
11
12 1
ü
12
13 1
ü
13
14 1
ü
14
15 1
ü
15
16 1
ü
16
17 1
ü
17
18 1
ü
18
19 1
ü
19
20 1
ü
20
I
F
max
20
N
P
------- or
15
N
P
------- =