Rockwell Automation 1391 USER MNL/DIGITAL AC SERVO DR - Manual (Page 50)

Chapter 6
Programming
6-13
Parameter 49 – Current Feedback Scale (Cur Fdbk Scale) *
The current feedback scaling is displayed based on motor current rating
and drive size (parameters 155 & 3). See Table 6.A.
Parameter Type: View only in Maintenance level
Minimum Value: 0
Maximum Value: 15
Table 6.A
Typical Current Feedback Scaling
Motor Rated Current
1391-DES15
15.0
14.1
13.1
12.2
11.3
10.3
9.4
8.4
7.5
6.6
5.6
4.7
3.8
2.8
1.9
0.9
1391-DES22
22.5
21.1
19.7
18.3
16.9
15.5
14.0
12.6
11.3
9.8
8.5
7.0
5.7
4.2
2.8
1.4
1391-DES45
45.0
42.2
39.4
36.6
33.8
30.9
28.1
25.3
22.5
19.7
16.9
14.1
11.3
8.4
5.6
2.8
Parameter 49 Value
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Parameter 50 – Current Feedback Rated (Cur Fdbk Rated) *
This parameter displays the actual motor current scaling based on current
feedback scale and drive size (parameters 49 & 3).
Parameter Type: View only in all levels
Minimum Value: Drive size/16
Maximum Value: Drive size
Parameter 51 – Current Limit *
The real time current limit is displayed by this parameter.
Parameter Type: View only in all levels
Min/Max Value: Whichever is less: 200% drive rating, +/– current limit, 3 times motor current,
ext limit or IT limit
Parameter 57 – Analog Velocity Command (Analog Vel Cmd) *
This parameter displays the analog velocity command value.
Parameter Type: View only in all levels
Minimum Value: –7000 rpm
Maximum Value: +7000 rpm