3-2
Table 3.1 Overview of Keypad Functions (Continued)
Item
LED Monitor, Keys,
and LED Indicators
Functions
USB port
The USB port with a mini B connector enables the inverter to connect with a PC with a
USB cable.
3.2 Overview of Operation Modes
FRENIC-MEGA features the following three operation modes.
Table 3.2 Operation Modes
Operation mode Description
Running mode
After powered ON, the inverter automatically enters this mode.
This mode allows you to specify the reference frequency, PID command value and etc., and run/stop the
motor with the
/
keys.
It is also possible to monitor the running status in real time.
If a light alarm occurs, the
l-al
appears on the LED monitor.
Programming
mode
This mode allows you to configure function code data and check a variety of information relating to the
inverter status and maintenance.
Alarm mode
If an alarm condition arises, the inverter automatically enters Alarm mode in which you can view the
corresponding alarm code* and its related information on the LED monitor.
* Alarm code: Indicates the cause of the alarm condition. For details, first see Table 6.1 "Abnormal
States Detectable ("Heavy Alarm" and "Light Alarm" Objects)" in Chapter 6, Section 6.1 "Protective
Functions," and then read the troubleshooting of each alarm.
Figure 3.1 shows the status transition of the inverter between these three operation modes.
Programming mode
Configuration of function
code data and monitor of
maintenance/alarm info
and various status
Alarm mode
Display of alarm status
Occurrence of
a heavy alarm
(Press this key if
an alarm has
occurred.)
+
Running mode
Release of
a light alarm
Monitor of running status
Light alarm displayed
Run/Stop of motor
Run/Stop of motor
Detection of
a light alarm
Power ON
Release of
a heavy alarm
Figure 3.1 Status Transition between Operation Modes
Simultaneous keying
Simultaneous keying means pressing two keys at the same time. The simultaneous keying operation is expressed by a
"+" letter between the keys throughout this manual.
For example, the expression "
+
keys" stands for pressing the
key with the key held down.
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