Setting Up Resolvers - Delta PBC Series User Manual

Power Brick Controller User Manual

Setting up Resolvers

Configuring a resolver requires setting up the excitation signal control. The excitation signal control
element, PowerBrick[].ResolverCtrl, is a 4-channel saved component:
The excitation signal control element is a 32-bit element wherein the upper 12 bits carry meaningful
information is broken down as follows:
Phase Shift (Delay)
31 30 29 28 27
Bit #:
Binary: 1 0 0 0 0
Hex ($): 8
Bits [31 – 24]
specify the phase shift or delay of the excitation sine wave with respect to the phase clock.
The unit of this field is 1 / 512 of an excitation cycle. This component is usually set experimentally to
maximize the magnitude of the feedback signal.
Bits [23 – 22]
specify the magnitude of the excitation output. The highest magnitude that does not cause
saturation of the feedback ADCs (which occurs when values in the lower 16 bits of
PowerBrick[].Chan[].AtanSumOfSqr exceed 32767) should be used.
Bits [21 – 20]
specify the frequency of the excitation output. The frequency that comes closest, but slightly
higher, to that recommended by the resolver manufacturer should be used.
Connections and Software Setup
Channels 1 – 4 PowerBrick[0].ResolverCtrl
Channels 5 – 8 PowerBrick[1].ResolverCtrl
26 25 24 23 22 21 20
0 0 0 1 1 0 0
0 C
Peak-Peak [Volts] Value Binary
12.2 (Max.)
Excitation Frequency Value Binary
Phase Clock / 1
Phase Clock / 2
Phase Clock / 4
Phase Clock / 6
Excitation Signal Control
19 18 17 16 15 14 13
0 0 0 0 0 0 0
0 0
3.2
0
6.2
1
8.8 2
3
0
1
2
3
Reserved
12 11 10 9 8 7 6
0 0 0 0 0 0 0
0 0
00
01
10
11
00
01
10
11
5 4 3 2 1 0
0 0 0 0 0 0
0
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