68
AGZ 026B through 130B
IOMM AGZ-5
Inverter Output to the Motor
The AC motor must be connected only to the inverter’s output
terminals. The output terminals are uniquely labeled (to
differentiate them from the input terminals) with the
designations U/T1, V/T2, and W/T3. This corresponds to
typical motor lead connection designations T1, T2, and T3.
The consequence of swapping any two of the three connections
is the reversal of the motor direction. This must not be done.
In applications where reversed rotation could cause equipment
damage or personnel injury, be sure to verify direction of
rotation before attempting full-speed operation. For safety to
personnel, the motor chassis ground must be connected to the
ground connection at the bottom of the inverter housing.
Notice the three connections to the motor do not include one marked “Neutral” or “Return.”
The motor represents a balanced “Y”
impedance to the inverter, so there is no need for a
separate return. In other words, each of the three “Hot” connections serves also as a return for
the other connections, because of their phase relationship.
Do not to switch off power to the inverter
while the motor is running
(unless it is an emergency
stop). Also, do not install or use disconnect switches in the wiring from the inverter to the motor
(except thermal disconnect).
Inverter Front Panel Keypad
The CR100 Series inverter front keypad contains all the elements for both monitoring and
programming parameters. The keypad layout is pictured below. The fan VFD is programmed in
the factory before shipment and no field programming is required.
Key and Indicator Legend
Run/Stop LED
- ON when the inverter output is ON and the motor is developing torque (Run
Mode), and OFF when the inverter output is OFF (Stop Mode).
Program/Monitor LED
- This LED is ON when the inverter is ready for parameter editing
(Program Mode). It is OFF when the parameter display is monitoring data (Monitor Mode).
Run Key Enable LED
- is ON when the inverter is ready to respond to the Run key, OFF when
the Run key is disabled.
Run Key
- Press this key to run the motor (the Run Enable LED must be ON first). Parameter
F_04, Keypad Run Key Routing, determines whether the Run key generates a Run FWD or Run
REV command.
Содержание AGZ026BS
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