Reference Manual

PMAC 2 Software Reference
160 PMAC I-Variable Specifiation
I1011 Resolver Excitation Gain {Geo PMAC only}
Range
0 – 3
Units
Gain-1
Default
0
Remarks
I1011 specifies the gain of the AC excitation output created by the Geo PMAC for
resolvers, with the gain equal to (I1011 + 1). With a gain of 1, the nominal AC output has
peak voltages of +/-2.5V. The following table lists the possible values of I1011 and the
nominal output magnitudes they produce:
I1011 Excitation Mag.
0 +/-2.5V
1 +/-5.0V
2 +/-7.5V
3 +/-10.0V
I1011 is only used if the Geo PMAC’s Feedback Option 1 for analog position feedback is
ordered.
I1012 Resolver Excitation Frequency Divider {Geo PMAC only}
Range
0 – 3
Units
none
Default
0
Remarks
I1012 specifies the frequency of the AC excitation output created by the Geo PMAC for
resolvers as a function of the phase clock frequency set by I900 and I901. The following
table lists the possible values of I1012 and the excitation frequencies they produce:
I1012 Excitation Freq.
0 PhaseFreq
1 PhaseFreq/2
2 PhaseFreq/4
3 PhaseFreq/6
I1012 is only used if the Geo PMAC’s Feedback Option 1 for analog position feedback is
ordered.
I1013 Motor Temperature Check Enable {Geo PMAC only}
Range
0 – 3
Units
none
Default
0
Remarks
I1013 controls whether the motor temperature check function is enabled for the motor(s)
connected to the Geo PMAC. I1013 is a 2-bit value: bit 0 controls whether the
temperature check function is enabled for Motor 1, and bit 1 controls whether the
temperature check function is enabled for Motor 2. The following table shows the four
possible values of I1013 and the functions they produce: