Rockwell Automation SA500 AC Power Modules - Manual (Page 38)

4-10 SA500 Power Modules
4.6.1 Resolver Input Connections
The resolver input connections are shown in table 4.3.
Note that Distributed Power Systems are designed to be used with the standard
resolvers listed in this table 4.3 and in Appendix A.
Typical voltage levels associated with the resolver are as follows:
• Reference: This is a 2381 Hz sine wave with a typical amplitude of approximately
26V RMS. When measuring any of the resolver signals, make sure that the meter
used can respond to 2381 Hz accurately or use an oscilloscope.
• Sine or cosine feedback: This is a 2381 Hz signal with an amplitude that varies
with the rotation of the shaft. Maximum amplitude (as the shaft turns) should be
approximately 11.8V at the feedback connector. Voltages may be different
depending on the installation. The system adjusts the signal levels to develop 11.8V
maximum at the module input.
Table 4.4 lists the cables that may be used for resolver connection.
See Appendix A for maximum resolver speed specifications.
Table 4.3 – Standard Resolver Connections
Resolver Resolver & Drive I/O Module
Connector Pin
Resolver
Winding 613469-1,-2
800123,
800123-1 800123-2 TB
Faceplate
Conn Pin Resolver Module
Reference
Input R1+
R2– A
B 1
2 A
B 1
2 A
B +
– Ref. Output
Sine Output S1+
S3– C
D 3
4 D
F
3
4 D
C +
– Sine Input
Cosine
Output S2+
S4– E
F 5
6 G
E
5
6 F
E –
+
Cosine Input
1
7
8 H
J
+
–
Ext. Strobe
1
1. Connections listed give a positive speed signal for counter-clockwise motor rotation (when facing the end opposite the output shaft). To
reverse the polarity of this signal, interchange the cosine input leads (terminals 5 and 6).
Table 4.4 – Recommended Resolver Cables
Part No.
417900
No. of
Twisted
Pairs
Length
of Twist
Twists
Per Inch
Size mm 2
(AWG)
Recommended Maximum
Distance Per Resolver Type
X1 X2
-207CG 3 12.7(8.5 mm (2(3) 0.823 (18) 255 m (850 ft) 240 m (800 ft)
-76EAD 1 12.7(8.5 mm (2(3) 1.31 (16) 320 m (1050 ft) 310 m (1025 ft)