2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
■
Judge the life of DC link bus capacitor (Bit 4)
Whether the DC link bus capacitor (reservoir capacitor) has reached its life is determined by
measuring the length of time for discharging after power off. The discharging time is determined by
the capacitance of the DC link bus capacitor and the load inside the inverter. Therefore, if the load
inside the inverter fluctuates significantly, the discharging time cannot be accurately measured, and
as a result, it may be mistakenly determined that the life has been reached. To avoid such an error,
the judgment on the life of the DC link bus capacitor can be disabled.
Load may vary significantly in the following cases. Disable the judgment on the life during operation,
and either conduct the measurement with the judgment enabled under appropriate conditions during
periodical maintenance or conduct the measurement under the actual use conditions.
•
Auxiliary input for control power is used
•
An option card is used
•
Another inverter or equipment such as a PWM converter is connected to the terminals of the DC
link bus.
For details, refer to the FRENIC-Lift (LM2A) Instruction Manual (INR-SI47-1894-E), Chapter
6 "MAINTENANCE AND INSPECTION."
■
Braking transistor error detection (Bit 6)
Upon detection of a built-in braking transistor error, this feature stops the inverter and displays the
alarm
dbA
. Set data of bit 6 to “0” when the inverter does not use a braking transistor and there is no
need of entering the alarm state.
■
Canceling detection of thermistor cut line (Bit 7)
( 400V series: 37kW and above)
For the inverters with capacity of 37kW and above (400V series), the connection between the
thermistor for detecting fan’s temperature and detecting circuit of power printed circuit board is
considered as a harness. When the connection is cut, it is possible to choose whether to treate it as an
alarm or to continue driving.
H98 bit7=0(Alarm treatment): stop inverter by OH1 alarm.
H98 bit7=1(Continue driving): keeping driving inverter without alarm.
If you select ‘continue driving’ (H98 bit5=1 or bit7=1), the inverter can be driven as emergency
measure. However, it drives without the temperature protection function. When the inverter
keeps driving under such a condition, there is a possibility of finally causing the damage of the
inverter. Please contact our company promptly, and remove the fault (disconnection of the
harness).
Doing so could cause fire, an accident or injuries.
H99
Password Protection
F00 (Data Protection)
H99 specifies a password.
- Data setting range: 0000
H
(Disable password protection)
0001
H
to FFFF
H
(Enable password protection)
For details, refer to function code F00.
H190
Terminal [UVW] Output order
H190 specifies the phase sequence order.
Rotation direction is changed by swapping phase sequence of out put terminals U,V and W.
Data for H190
Rotation direction
0
Normal (FWD = UVW)
1
Inverse (FWD = UWV)
To change the H190 data, it is necessary to press the
+
/
keys (simultaneous keying).
2-107
Содержание Frenic lift
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