Veichi JT550 Series Manual page 3

JT550 Series Inverter Manual
Adjusting AC Drive Parameters
Disconnect all power sources applied to the AC Drive before terminal wiring, and wait for at least the time
designated on the AC Drive after disconnecting the power sources.
High voltage presents inside the AC Drive during running. Do not carry out any operation on the AC Drive
during running except for keypad setup.
This manual provides a complete list of the parameters with functional description and care should always
be taken whenever parameters are adjusted during a live running startup. Juditech can provide product
training and if in doubt seek advice.
Maintenance and component replacement
Only well-trained and qualified professionals are allowed to perform maintenance, inspection, and
component replacement on the AC Drive.
Take measures to prevent screws, cables and other conductive matters from falling into the AC Drive
during maintenance and component replacement.
Do not perform wiring, inspection or component replacement when power supply is applied. Ensure all the
input power supplies are disconnected before wiring and inspection, and wait for at least the time
designated on the AC Drive or until the DC bus voltage is less than 36V. The minimum waiting time is
listed in the table below.
AC Drive Model
0.75kW-110kW
132kW-315kW
Above 355kW
Minimum waiting time
5min
15min
25min
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Safety Instructions