Specifications

EV Inverter Operating Manual
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TECO – Westinghouse Motor Company 4
1.3 Installation and Pre-operation
Caution
 The inverter should be installed in a dry and dust-free area.
 The inverter should be installed on a nonflammable surface such as metal.
 The inverter may be operated up to an altitude of 1000m. Above 1000m it must be
de-rated. (Please consult factory)
 If several inverters are to be placed in the same enclosure, additional cooling may be
needed to keep the surrounding temperature below 50°C to avoid overheating or
possible fire.
 Do not connect T1, T2, and T3 terminals of the inverter to the AC power supply.
 CMOS ICs on the inverter‘s main board are susceptible to static electricity. Do not
touch the main circuit board without proper precautions.
 Do not perform dielectric tests on parts inside the inverter as the high voltage will
easily destroy semiconductor parts.
 Wiring size and insulation type, as well as placement of the inverter, should conform
to applicable codes for a particular installation.
 Control wiring should be kept separate from power wiring and cabling. In some
applications it may be necessary to use shielded cable for the control wiring and / or
the power cabling to avoid performance issues.
Danger
 Do not modify any internal wiring, circuits, or parts. Connect the ground terminal of
the inverter properly. For 200V class Rg =< 100Ω, 400V class Rg =< 10Ω.
1.4 During Power ON
Caution
The display will flash the input voltage for about 2 seconds when power is applied.
Danger
 To avoid damage to the control circuitry resulting from transient voltages, do not plug
or un-plug any connectors or connect or disconnect any wiring to or from the inverter
when power is present.
 Do not change out parts and or check signals on circuit boards during the inverter
operation.
 When power interruption to the inverter is momentary, the inverter has sufficient
power storage to ride through and continue operation. However, when power loss
interruption is longer than 2 seconds (the larger the horsepower, the longer the time);
the inverter does not have enough stored power to maintain control. Therefore, when
power is restored, the inverter restart is controlled as follows:
1 - Will not automatically run after restart if Run Command Source parameter
F04=000 keypad (Factory Default).
2 - Will not automatically run after restart if Run Command Source parameter
F04=001 external terminal (switch) is off.
3 - Will automatically run after restart if Run Command Source parameter
F04=001 external terminal (switch) is on and parameters F41=000. (Auto
Restart after power loss)
 When removing or installing the keypad operator, turn OFF power first, and follow the
instruction diagram to avoid improper operation.