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Unidrive SPM User Guide 97
Issue Number: 3 www.controltechniques.com
* Marker pulse is optional
** Simulated encoder output only available in open-loop
*** The encoder supply is selectable through parameter configuration to
5Vdc, 8Vdc and 15Vdc
**** Terminal 15 is a parallel connection to T8 analog input 3. If this is to
be used as a thermistor input, ensure that Pr 7.15 is set to ‘th.sc’ (7),
‘th’ (8) or ‘th.diSP’ (9).
N
SSI encoders typically have maximum baud rate of 500kBaud. When a
SSI only encoder is used for speed feedback with a closed loop vector or
servo motor, a large speed feedback filter (Pr 3.42) is required due to the
time taken for the position information to be transferred from the encoder
into the drive. The addition of this filter means that SSI only encoders are
not suitable for speed feedback in dynamic or high-speed applications.
Table 6-30 Drive encoder connector details
Terminal
Setting of Pr 3.38
Ab
(0)
Fd
(1)
Fr
(2)
Ab.SErVO
(3)
Fd.SErVO
(4)
Fr.SErVO
(5)
SC
(6)
SC.HiPEr
(7)
EndAt
(8)
SC.EndAt
(9)
SSI
(10)
SC.SSI
(11)
1AFF A F F Cos
Cos Cos
2 A\ F\ F\ A\ F\ F\ Cosref Cosref Cosref
3 B D R B D R Sin Sin Sin
4 B\ D\ R\ B\ D\ R\ Sinref Sinref Sinref
5Z*
Encoder input - Data (input/output)
6 Z\* Encoder input - Data\ (input/output)
7
Simulated encoder
Aout, Fout**
U
Simulated encoder
Aout, Fout**
8
Simulated encoder
Aout\, Fout\**
U\
Simulated encoder
Aout\, Fout\**
9
Simulated encoder
Bout, Dout**
V
Simulated encoder
Bout, Dout**
10
Simulated encoder
Bout\, Dout\**
V\
Simulated encoder
Bout\, Dout\**
11
W Encoder input - Clock (output)
12 W\ Encoder input - Clock\ (output)
13 +V***
14 0V common
15 th****
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