79 of 132
M-SV-001-EN Rev.E
Compressor Components
1. Install the left foot of the replacement board
into the rail and press the right side of the board
down until it engages the rail.
2. Reconnect all external connections and wiring
on the CIM.
3. Reapply power to compressor.
3.15.4.2 Compressor I/O
Board Installation
Figure 74 - Bearing Control
Signal Flow
3.16 Bearing Pulse Width
Modulator Amplifier
3.16.1 Function
The PWM Amplifier supplies current to the radial
and axial magnetic bearing coils as commanded
by the BMCC. In return, the PWM passes feedback
from the current sensor for the bearing coils to
the BMCC. See Figure 74 (Bearing Control Signal
Flow).
The Backplane provides the PWM with +5VDC
with respect to 0VDC, along with +17VDC and
HV+ (at 250VDC) both with respect to HV-.
Summary of Contents for Turbocor TT-300
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