4-1
Chapter 4 RUNNING THE MOTOR
4.1 Running the Motor for a Test
4.1.1 Inspection and preparation prior to powering on
Check the following prior to starting powering on.
(1) Check if connection is correct.
Especially check if the power wires are connected to the inverter input terminals L1/R, L2/S and L3/T, and
output terminals U, V and W respectively and that the grounding wires are connected to the ground
electrodes correctly. Note that FRENIC-Eco series inverter is designed for three phase input and driving three
phase motors.
• Do not connect power supply wires to the inverter output terminals U, V, and W. Otherwise, the inverter may
be broken if you turn the power ON.
• Be sure to connect the grounding wires of the inverter and the motor to the ground electrodes.
Otherwise, electric shock may occur.
(2) Check for short circuits between terminals and exposed
live parts and ground faults.
(3) Check for loose terminals, connectors and screws.
(4) Check if the motor is separated from mechanical
equipment.
(5) Turn the switches OFF so that the inverter does not start o
operate erroneously at power-on.
(6) Check if safety measures are taken against runaway of the
system, e.g., a defense to protect people from
unexpectedly approaching your power system.
Figure 4.1 Connection of Main Circuit Terminals
4.1.2 Turning ON power and checking
• Be sure to install the covers for both the main circuit terminal block, control circuit terminal block and the front
cover if any before turning the power ON.
Do not remove any cover while powering on.
• Do not operate switches with wet hands.
Otherwise electric shock could occur.
Turn the power ON and check the following points. This is a case when no
function code data is changed from the factory setting.
(1) Check if the LED monitor displays
*00
(means that the frequency
command is 0 Hz) that is blinking. (See Figure 4.2.)
If the LED monitor displays numbers except
*00
then press
/
keys to set
*00
as the frequency command.
(2) Check if a built-in cooling fan rotates.
(When only the auxiliary power is fed while the main power is turned
OFF, the cooling fan does not rotate. For the inverter of 1HP for 208V,
2HP for 460V or below no cooling fan is mounted.)
Figure 4.2 Display of the LED
Monitor after Power-on
4.1.3 Preparation before running the motor for a test--Setting function code data
Before starting running the motor, set function code data specified in Table 4.1 to the motor ratings and your
system design values. For the motor, check the rated values printed on the nameplate of the motor. For your
system design values, ask system designers about them.
For details about how to change function code data, refer to Chapter 3, Section 3.4.2 "Setting up function
codes quickly using Quick setup." Refer to the function code H03 in Chapter 5 "FUNCTION CODES" for the
factory default setting of motor parameters. If any of them is different from the default setting, change the
function code data.
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