Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 131
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
131
Programming and Parameters
Chapter 3
MOT
O
R C
O
NTROL
Spee
d F
eedback
425
[Resolver Config]
Configures the attributes of the resolver feedback module.
• Bits 2 “Resolution 0” and 3 “Resolution 1” - Select the resolver to digital conversion resolution. See Table 425A: Resolution Settings below for
selections. The selection of resolver resolution affects the maximum speed that can be measured by the resolver. These numbers are theoretical and
actual limits could be higher based the application of the drive. Note the maximum speed of the drive is 6000 rpm.
• Bit 4 “Energize” - Energizes the resolver. Setting the bit to zero de-energizes the resolver (typically this bit should remain set, = 1).
• Bit 5 “Resolver Dir” - Determines the counting direction. This bit can be used to change the resolver direction when it doesn't match the motor
direction (that is, when wired backwards). 0 = forward (counting up), 1 = reverse (counting down).
• Bits 10 “Move Avg b0”, 11 “Move Avg b1”, and 12 “Move Avg b2” - Select the moving average speed filter period (see Table 425B: Moving Average
below).
Note: This parameter was added for firmware version 5.002.
Fil
e
Gr
oup
No
.
Parameter Name & Description
See
page 110
for symbol descriptions
Values
Da
ta
T
yp
e
Rela
ted
A
ATTENTION: Changing bit 5 “Resolver Dir” when the resolver direction matches the motor direction and Par 414
[Fdbk Device Type] is set to 4 “Resolver” may cause the motor to run at excessive speed or become damaged, which
could result in personal injury or destruction of equipment.
Options
Res
er
ved
Res
er
ved
Res
er
ved
M
ov
e A
vg b2
M
ov
e A
vg b1
M
ov
e A
vg b0
Res
er
ved
Res
er
ved
Res
er
ved
Res
er
ved
Res
olv
er Dir
En
er
gi
ze
Res
olution 1
Res
olution 0
Res
er
ved
Res
er
ved
Default
x
x
x
0
1
0
x
x
x
x
0
1
0
0
x
x
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Table 425A - Resolution Settings
Bit
Maximum Speed (rpm)
3
2
Resolution
x1
x2
x5
0
0
10 bit
39,000
19,500
7800
0
1
12 bit
13,800
6900
2760
1
0
14 bit
3480
1740
696
1
1
16 bit
900
450
180
Table 425B - Moving Average
Bit
Bit
12
11
10
Filter Period
12
11
10
Filter Period
0
0
0
2 ms
1
0
0
16 ms
0
0
1
4 ms
1
0
1
2 ms
0
1
0
8 ms
1
1
0
2 ms
0
1
1
2 ms
1
1
1
2 ms