GD200A series VFD
Safety precautions
-3-
The leakage current of the VFD may be above 3.5mA during operation. Ground with proper
techniques and ensure the grounding resistor is less than
10Ω. The conductivity of PE
grounding conductor is the same as that of the phase conductor (with the same cross
sectional area). For the 030G/037P and higher models, the cross sectional area of the PE
grounding conductor can be slightly less than the recommended area.
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 with proper techniques;
otherwise the damage to the VFD may occur.
1.4.2 Commission and running
Disconnect all power supplies applied to the VFD before the terminal wiring
and wait for at least the designated time after disconnecting the power supply.
High voltage is present inside the VFD during running. Do not carry out any
operation except for the keypad setting. It must be noted that the control
terminal of EV1000 inverter is ELV (Extra Low Voltage) circuit, which cannot
be connected directly to the accessible terminals of other devices if no
protective isolation measure is taken. For instance, RS485 terminal of the
inverter can be connected to RS232 interface of the PC only after a converter
with protective isolation is connected between them.
The VFD may start up by itself when P01.21=1. Do not get close to the VFD
and motor.
The VFD cannot be used as "Emergency-stop device".
The VFD cannot be used to break the motor suddenly. A mechanical braking
device should be provided.
Note:
Do not switch on or off the input power supply of the VFD frequently.
For the VFD that has been stored for a long time, check and fix the capacitance and try to run
it again before utilization (see 8.8 Maintenance and hardware diagnostics).
Cover the front board before running, otherwise electric shock may occur.
1.4.3 Maintenance and replacement of components
Only qualified electricians are allowed to perform the maintenance,
inspection, and components replacement of the VFD.
Disconnect all power supplies to the VFD before the terminal wiring. Wait for
at least the time designated on the VFD after disconnection.
Take measures to avoid screws, cables and other conductive materials to fall
into the VFD during maintenance and component replacement.
Note:
Please select proper torque to tighten screws.
Содержание GD200A-004G-4
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