Rockwell Automation SA3100 Power Module Interface (PMI) Regulator - Manual (Page 36)

3-2 PMI Regulator
The 14-pin Resolver Feedback connector is used to bring the resolver signal into the
PMI Regulator. This connector will also accept a signal from an analog tachometer or
other analog field device as long as the signal is within the correct voltage range. In
addition, there is a 24V digital input that serves as a strobe for latching the resolver
position externally.
Both a resolver and an analog tachometer may be connected to the board. However,
only the resolver can be used for speed feedback. The speed feedback type is
selected during UDC parameter configuration. (See the SA3100 Drive Configuration
and Programming instruction manual, S-3056.)
The 18-pin Drive I/O connector is used to attach drive-related or other digital I/O
devices to the PMI Regulator. Six digital inputs and two digital outputs are provided.
Five of the inputs and one of the outputs are user-programmable.
Refer to chapter 5 for information on cables and cable part numbers.
The status of the resolver feedback signal and the drive I/O is displayed in the UDC’s
I/O Status register (201/1201) and on the nine LEDs listed below. The indications
given by these LEDs are described in section 2.1.6. Refer to the SA3100 Drive
Configuration and Programming instruction manual for a description of the I/O Status
register.
3.2 Resolver & Drive I/O Board Electrical Description
The Resolver & Drive I/O board receives its power from the PMI Regulator
motherboard. The board contains a fuse on its 5V input. If this fuse blows, the board
has failed and must be replaced. Bit 9 of the Drive Fault register (202/1202) will be
set if an open fuse is detected.
The following sections provide electrical descriptions for the resolver input, analog
input, and digital drive I/O circuitry.
3.2.1 Resolver Input
The Resolver Feedback connector is used for both resolver input and analog input
signals. The Resolver Feedback connector pinout is shown in figure 3.2.
• FDBK OK • RPI • MCR • AUX IN1 • AUX IN2
• AUX IN3 • AUX IN4 • AUX IN5 • AUX OUT