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M-SV-001-EN Rev.E
Compressor Components
1. Align the Backplane with the mounting
holes, ensuring the cavity temperature sensor
connector is available.
2. Insert and tighten fasteners at the top of the
Backplane Frame.
3. Insert and tighten frame ground screw at the
bottom right of the Backplane. See Figure 62
(Removing the Backplane).
4. Install all connectors to their appropriate
locations. See Figure 60 (Backplane Connections
and Test Points).
5. Remove the Inverter ground screw from top
right of the Backplane.
6. Connect Inverter ground ring to Inverter
ground screw and install at top right of
Backplane.
7. Reinstall the Bearing PWM Amplifier, the
BMCC, and the Serial Driver. See Figure 70 (BMCC
Insertion Guides).
8. Reinstall cover.
8. Remove the Backplane from the housing.
3.10.3.2 Backplane
Installation
3.11 Serial Driver
3.11.1 Function
3.11.2 Connections
3.11.3 Verification
3.11.3.1 Input Voltage
Verification
3.11.3.2 Output Voltage
Verification
The Serial Driver is powered with +15VDC and
+24VDC from the Backplane.
The Serial Driver pr24VDC to the Motor-
Cooling Solenoids, +15VDC to the IGV stepper
motor, and +15VDC to the external expansion
valves on the I/O board.
The Serial Driver also controls the RUN and Alarm
LEDs on the Backplane and the STATUS indicator
on the I/O board.
All actions of the Serial Driver occur when
signaled from the BMCC.
The Serial Driver is connected to J8 of the
Backplane. All components that communicate
with the Serial Driver are connected to the
Backplane. See Figure 60 (Backplane Connections
and Test Points).
1. Remove the Service Side Cover.
2. With main power on, using a multimeter set
for DC voltage measurements, verify the voltage
on the Bac15V and +24V test points as
defined in Table 12 “Backplane Test Point Values.”
See Figure 60 (Backplane Connections and Test
Points). The results should be within the voltage
range specified in Table 12 (Backplane Test Point
Values).
3. Isolate compressor power and wait for the
Backplane LEDs to go out.
4. Unplug connectors J4 and J24 from the
Backplane.
5. Using a multimeter set for resistance
measurements, place the multimeter leads in the
Bac15V and +24V test points as defined
in Section 3.10.2.1 “LED Locations.” The results
should be greater than the resistance specified in
Table 12 (Backplane Test Point Values).
1. Remove the Service Side Cover.
2. Isolate compressor power and wait for the
Backplane LEDs to go out.
3. Wait a minimum of one minute.
4. Reapply compressor power.
• The Alarm LED will illuminate green and the
Cool-H, Cool-L and Run LEDs will illuminate
amber, all for about five seconds. The Alarm LED
will then switch to red and the others will turn off.
See Figure 61 (LED Locations).
• After the compressor completes start-up check,
The Alarm LED will change to green (provided no
alarm is present)
and the IGV LEDs will flicker until the IGV is reset.
Additionally, if an external expansion valve is
connected to the I/O board, the LEDs on the I/O
board will flicker as the external expansion valve
is reset.
Содержание Turbocor TG230
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