Chapter 4 Wiring of Inverter
ET/EP/EH Series Intelligent Flexible Driver Manual
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c) Partial power of the intelligent flexible driver has the built-in braking unit, but needs to be
connected to an external braking resistor. Please install the braking resistor between
terminal B1 and terminal B2, and do not connect it to any other terminals, otherwise it
may damage the braking resistor and inverter.
d) Partial power of the intelligent flexible driver has the built-in DC reactor.
e) Inverter grounding PE is recommended to be connected to the special grounding pole, and
the grounding impedance should be below 10Ω.
f) The grounding cable should be as short as possible.
g) After the power is turned on, if you want to change the wiring, first of all, the power
should be cut off. Since it takes some time to discharge the charging capacitor of the main
circuit of the inverter, to avoid danger, you must wait until the charging indicator goes off
and measure the DC voltage at both ends of the charging capacitor with a DC voltmeter to
confirm that the voltage value is less than the 24V DC safety voltage before you can
proceed to the next step.
4.3 Wiring of main circuit terminals
4.3.1 Layout of main circuit terminals
Figure 4-9-1 F0-F6 Diagram of main circuit connecting terminal
Figure 4-9-2 F7-F10 Diagram of main circuit connecting terminal
4.3.2 Descriptions on main circuit terminal markings and functions
The functional descriptions of the main circuit terminals are shown in Table 4-10.
Table 4-10 Functional description of main circuit terminals
Terminal function description
Main circuit AC power input, connecting three-phase input power
Inverter output, connecting to motor
External braking resistor connection
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