Danfoss Turbocor TT300 User Manual

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M-SV-001-EN Rev.E
Compressor Components
3.6.2 Connections
3.6.3 Verification
3.6.4 Removal and
Installation
See Figure 39 for location of the DC bus
connections.
1. +DC to Soft Start
2. -DC to Soft Start and DC/DC
3. DC bus to Inverter
Use the DC bus test harness to determine if DC
bus voltage is within the correct range for the
application. See Section 1.9 (DC Bus Test Harness
Installation and Removal).
1. Isolate the compressor power as described
in the “Electrical Isolation of the Compressor”
section of this manual.
2. Disconnect the bleed resistor from one side of
the capacitor.
3. Bend the bleed resistor back slightly until it no
longer contacts the DC bus.
1. Isolate the compressor power as described
in the “Electrical Isolation of the Compressor”
section of this manual.
2. Remove the Soft Start Module.
3. Remove the snubber capacitors.
4. Using a multimeter set for capacitance
measurement, place the leads on the capacitor
terminals. The measured value should be 0.42μF
to 0.52μF.
1. Isolate the compressor power as described
in the “Electrical Isolation of the Compressor”
section of this manual.
2. Remove the Soft Start and the Soft Start Cable
Harness. See Figure 39 (Soft Start Cable Harness
to DC Bus).
4. Using a multimeter set for resistance
measurement, place the leads on each of the
bleed resistor terminals. The measured value
should be between 24.3kΩ and 29.7kΩ for TT300/
TG230 compressors or between 16.2kΩ and
19.8kΩ for TT350, TT400, TT500, TT700, TG310,
TG390, and TG520 compressors.
Figure 39 - Soft Start Cable
Harness to DC Bus
3.6.3.1 DC Bus Voltage
Verification
3.6.3.2 Bleed Resistor
Verification
3.6.3.3 Snubber
Capacitor Verification
3.6.4.1 DC Bus Removal
• • • CAUTION • • •
A faulty bleed resistor can be the result of a faulty DC capacitor.
TT350/TT400, TT500/
TT700/TG310/TG390/
TG520 +DC
TT350/TT400, TT500/
TT700/TG310/TG390/
TG520 -DC
TT350/TT400, TT500/TT700/
TG310/TG390/TG520 DC
Bus to Inverter
3. Disconnect the SCR DC bus bars from the
capacitor DC bus bars (TT300/TG230 only).
See Figure 40 (Removing Attaching Hardware
from DC Bus Bars).
TT300/TG230 -DC
TT300/TG230 DC
Bus to Inverter
TT300/TG230 +DC

Danfoss Turbocor TT300 Specifications

General

Brand	Danfoss
Model	Turbocor TT300
Category	Air Compressor
Language	English