TEC TECDrive20-EU Series - Commissioning and Running; Maintenance and Component Replacement

TECDrive20-EU Series Inverter Safety precautions
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 The leakage current of the inverter may be above 3.5mA during operation. Ground properly
and ensure the grounding resistor is less than 10Ω. The conductivity of PE grounding
conductor is the same as that of the phase conductor.
 R, S and T are the input terminals of the power supply, while U, V and W are the motor
terminals. Please connect the input power cables and motor cables properly; otherwise, the
damage to the inverter may occur.
1.3.2 Commissioning and running
 Disconnect all power supplies applied to the inverter before the terminal
wiring and wait for at least the designated time after disconnecting the
power supply.
 High voltage is present inside the inverter during running. Do not carry out
any operation except for the keypad setting.
 The inverter may start up by itself when P01.21=1. Do not get close to the
inverter and motor.
 The inverter cannot be used as "Emergency-stop device".
 The inverter cannot be used to brake the motor suddenly. A mechanical
brake device should be provided.
Note:
 Do not switch on or off the input power supply of the inverter frequently.
 For inverters that have been stored for a long time, set the capacitance and carry out
inspection and pilot run on the inverter before use.
 Close the front cover before running; otherwise, electric shock may occur.
1.3.3 Maintenance and component replacement
 Only well-trained and qualified professionals are allowed to carry out
maintenance, inspection, and component replacement on the inverter.
 Disconnect all the power sources applied to the inverter before terminal
wiring, and wait for at least the time designated on the inverter after
disconnecting the power sources.
 Take measures to prevent screws, cables and other conductive matters
from falling into the inverter during maintenance and component
replacement.
Note:
 Select proper torque to tighten screws.
 Keep the inverter and its parts and components away from combustible materials during
maintenance and component replacement.