User manual of EC160 elevator intelligent integrated machine Maintenance and hardware diagnosis
200
Time Operational principle
Storing time less than 1 year Operation without charging
Storing time 1-2 years Connect with the power for 1 hour before first ON command
Storing time 2-3 years
Use power surge to charge for the inverter
• Add 25% rated voltage for 30 minutes
• Add 50% rated voltage for 30 minutes
• Add 75% rated voltage for 30 minutes
• Add 100% rated voltage for 30 minutes
Storing time more than 3 years
Use power surge to charge for the inverter
• Add 25% rated voltage for 2 hours
• Add 50% rated voltage for 2 hours
• Add 75% rated voltage for 2 hours
• Add 100% rated voltage for 2 hours
The method of using power surge to charge for the inverter:
The right selection of power surge depends on the supply power of the inverter. Single phase 220V
AC/2A power surge applied to the inverter with single/three-phase 220V AC as its input voltage.
The inverter with single/three-phase 220V AC as its input voltage can apply single phase 220V
AC/2A power surge. All DC bus capacitors charge at the same time because there is one rectifier.
High-voltage inverter needs enough voltage (for example, 400V) during charging. The small
capacitor power (2A is enough) can be used because the capacitor nearly does not need current
when charging.
The operation method of inverter charging through resistors (LEDs):
The charging time is at least 60 minutes if charge the DC bus capacitor directly through supply
power. This operation is available on normal temperature and no-load condition and the resistor
should be serially connected in the 3-phase circuits of the power supply:
400V driven device: 1kΩ/100W resistor. LED of 100W can be used when the power voltage is no
more than 400V. But if used, the light may be off or weak during charging.
Figure 10-1 400V charging illustration of the driven device
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