4-16
4.1.13 Preparation for practical operation
After verifying normal motor running with the inverter in a test run, connect the motor with the machinery and perform wiring
for practical operation.
(1) Configure the application related function codes
that operate the machinery.
(2) Check interfacing with the peripheral circuits
.
1) Mock alarm
Generate a mock alarm by pressing the "
+ keys" on the keypad for 5 seconds or more and check the alarm
sequence. The inverter should stop and issue an alarm output signal (for any fault).
2) Judgment on the life of the DC link bus capacitor
When the multi-function keypad is used, it is necessary to set up the judgment reference level to be applied for the
judgment on the life of the DC link bus capacitor.
When the remote keypad is used, the same setting-up is also necessary in order to judge the life of the DC link bus
capacitor under the practical operating conditions.
For details, refer to Chapter 7 "MAINTENANCE AND INSPECTION."
3) I/O checking
Check interfacing with peripherals using Menu #4 "I/O Checking" on the keypad in Programming mode. For details,
refer to Chapter 3 "OPERATION USING THE KEYPAD."
4) Analog input adjustment
Adjust the analog inputs on terminals [12], [C1] and [V2] using the function codes related to the offset, filter and gain
that minimize analog input errors. For details, refer to Chapter 5 "FUNCTION CODES."
5) Calibrating the [FM] output
Calibrate the full scale of the analog meter connected to the terminals [FM1] and [FM2], using the reference voltage
equivalent to +10 VDC. To output the reference voltage, it is necessary to select the analog output test with the function
code (F31/F35 = 14).
6) Clearing the alarm history
Clear the alarm history saved during the system setup with the function code (H97 = 1).
Depending upon the situation of the practical operation, it may become necessary to modify the settings of the torque
control. Confirm the function code data and modify them properly.
4.2 Special Operations
4.2.1 Jogging operation
This section provides the procedure for jogging the motor.
(1) Making the inverter ready to jog with the steps below. The LED monitor should display
jog
.
• Switch the inverter to Running mode (see page 3-2).
• Press the "
+
keys" simultaneously. The LED monitor displays the jogging frequency for approximately one
second and then returns to
jog
again.
• Function code C20 specifies the jogging frequency. H54 and H55 specify the acceleration and deceleratio
ready-to-jog state.
• Switching between the normal operation state and ready-to-jog state with the "
+
keys" is possible only
when the inverter is stopped.
(2) Jogging the motor.
Hold down the
key during which the motor continues jogging. To decelerate to stop the motor, release the key.
(3) Exiting the ready-to-jog state and returning to the normal operation state.
Press the "
+ keys" simultaneously.
4.2.2 Remote and local modes
The inverter is available in either remote or local mode. In the remote mode that applies to ordinary operation, the inverter is
driven under the control of the data settings stored in the inverter, whereas in the local mode that applies to maintenance
operation, it is separated from the control system and is driven manually under the control of the keypad.
• Remote mode: Run and frequency commands are selected by function codes or source switching signals except "Select
local (keypad) operation" LOC.
• Local mode: The command source is the keypad, regardless of the settings specified by function codes. The keypad takes
precedence over the settings specified by communications link operation signals.
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