Rockwell Automation 57C411 Resolver Input Module User Manual

Page 15

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REFERENCE

SINE

COSINE

M/N 57C361 RESOLVER

FROM MODULE

TO MODULE

REFERENCE VOLTAGE: 26 Vrms

SINE VOLTAGE: 11.8 Vrms

COSINE VOLTAGE: 11.8 Vrms

Terminal Strip

in Control

Enclosure

Figure 3.3 Ć Typical M/N 57C361 Resolver Field Connections

Step 6.

Insert the cable assembly's (M/N 57C373) field terminal

connector into the mating half on the module. Use a

screwdriver to secure the connector to the module.
Note that both the module and the terminal strip connector

are equipped with keys". These keys should be used to

prevent the wrong cable from being connected to the

module in the event that the connector needs to be

removed for any reason and then reattached later.
At the time of installation, rotate the keys on the module

and the connector so that they can be connected together

securely. It is recommended that, for modules so

equipped, the keys on each succeeding module in the

rack be rotated one posistion to the right of the keys on

the preceeding module.
If you use this method, the keys on a particular connector

will be positioned in such a way as to fit together only with

a specific module, and there will be little chance of the

wrong connector being attached to a module.

Step 7.

Check the wiring and be sure all connections are tight.

Step 8.

With the resolver mechanically disconnected from the

motor, turn on power to the rack. Use an oscilloscope to

test the sine and the cosine signals from the resolver.

These signals, measured at the terminal strip, should be a

sine wave of approximately 33.4 VpĆp (11.8 Vrms +/-

10%).

Step 9.

Verify the installation by using the Programming Executive

Software. Refer to the AutoMax Programming Executive

Manual (JĆ3630 or JĆ3684) for more information.
Use the I/O MONITOR function for local I/O or remote I/O,

depending upon where the module is located. Set register

4 to a value of 1. Read register 2 and verify that bit 10 is

set. If it is not, set register 3 to a value of 64.