9.2 Details of Function Codes
9-41
Chap. 9 FUNCTION CODES
Lifetime alarm--(LIFE)
(Function code data = 30)㩷
This signal is turned ON when it is judged that the service life of any of capacitors (capacitor in
the DC link bus and electrolytic capacitors on the printed circuit boards) and cooling fan has
expired.
The judgement level for service life are as follows. This information can be checked in Menu #5
"Maintenance information" of Programming mode.
Parts Judgement level for service life
Capacitor in the DC link
bus
Capacitance: Max. 85% of factory default
Capacitor/s on the
printed circuit boards
Accumulated run time: 61,000 hours or more
Cooling fan Accumulated run time: 61,000 hours or more (2 to 5 HP models)
(Based on the assumption that the inverter runs in an ambient
temperature of 40°C (104°F))
This facility provides tentative information for service life of the parts. If this signal is issued,
check the service life of these parts in your system according to the maintenance procedure to
determine whether the parts should be replaced or not. To maintain stable and reliable operation
and avoid unexpected failures, daily and periodic maintenance must be performed. For details,
refer to the FRENIC-Mini Instruction Manual, Chapter 7 "MAINTENANCE AND
INSPECTION."
Inverter running--(RUN2)
(Function code data = 35)㩷
This signal is turned ON when the main switching circuit (IGBT gates) is activated; it is OFF
when it is not activated.
Overload prevention control--(OLP)
(Function code data = 36)㩷
This signal is turned ON when the overload prevention facility is activated if the frequency drop
rate comes to be the setting specified by function code H70. The minimum ON-duration is 100
ms.
For details of the overload prevention control, refer to the descriptions of function code
H70.
Current detection--(ID)
(Function code data = 37)㩷
This signal is turned ON when the output current exceeds the operation level specified by
function code E34 and stays in this status for the duration specified by function code E35 (on
delay timer). The minimum ON-duration is 100 ms.
If the output current drops to 90% of the operation level, this signal is turned OFF.
This signal can be used as a reference for determining the running speed in the operation of load
machinery or system, by monitoring the inverter's load state.
Function codes E34 and E35 are effective not only for the current detection (ID),
but often also for the overload early warning (OL) and low level current detection
(IDL).
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