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How to Handle Faults
In the event of a fault, the following measures should be taken:
(1) Record the fault message shown on the display on the operation panel.
(2) Collect the trace back data, if the commissioning software package was purchased.
(3) See the Fault and Recovery section.
Description of Terminology
This section describes the special terms used in this manual.
Description of Terminology
Term Meaning
Power
module
A single-phase DC-fed inverter module using IGBTs.
IGD board
IGBT Gate Driver Board. Converts gate signals sent in optical signal form to
electric signals.
OLB board
Optical Link Board. Converts gate signals from electric to optical signals for
isolation.
VDET board
Voltage Detection Board. Board that measures analog voltage signals and
converts them to optical signals.
GSD board Gate Signal Distributor. Board that distributes gate signals to each output phase.
CTR board Inverter main control board
TEX board
Twin Expansion Board. Distributes the gate signals to the power modules for
twin drives.
EEPROM Electrical Erasable Programmable Read Only Memory
IGBT Insulated Gate Bipolar Transistor
LCD Liquid Crystal Display
LED Light Emitting Diode
MCCB Molded Case Circuit Breaker
PP7
Power electronics Processor for Various Inverter control Integration (VII=7).
Toshiba dedicated power electronics control 32-bit micro-controller.
PSM
Switching power supply that providing ±15 VDC and +5 VDC for boards.
RAM Random Access Memory
Initialize
Act of initialization. When the control power switch is turned from OFF to ON the
inverter equipment initializes data and circuits.
Interface Means by which this equipment transfers signals to/from external devices.
Inverter
Inverse converter that converts DC power to AC power.
(DC → AC conversion)
Overload Operation at a current output that exceeds the continuos rating of the equipment.
Display-
keypad
Operational panel installed on the cubicle surface that is used for data display
and basic operations.
Load Refers to a motor that receives power from this equipment.
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