2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
This is a status output signal that comes ON when the [EN1]/[EN2] terminals are not active. It goes
OFF when the output signal
DECF
is ON.
■
Low voltage detected –
LVD
(Function code data = 104)
This output signal comes ON when a low voltage is detected.
■
Electric angle cycle –
EAC
(Function code data = 105)
When Magnetic pole position offset value of a synchronous motor is set by manual tuning.ower,
EAC
is used. If 90
°≦
electric angle
θ
<
270
°
,
EAC
is ON.
■
Magnetic pole position offset tuning –
DTUNE
(Function code data = 107)
DTUNE
is turned ON while Magnetic pole position offset tuning is operating. The end of the
magnetic pole position tuning done by
PPT
can be confirmed.
■
Recommended running direction at battery operation –
RRD
(Function code data = 109)
The inverter recommends the direction that should operate during the battery operation by using
digital outputs
RRD
. In other words, it recommends always the braking direction.
If
RRD
is ON, it means that inverter recomends rescue in FWD direction. On the other hand, if
RRD
is OF, it means that inverter recomends rescue in REV direction.
These signals are saved when the power supply to the inverter is shut off, and kept until the next
operation begins. They are kept as well under battery operation.
■
Drive continuance alarm –
ALM2
(Function code data = 110)
When some special alarm happens, the inverter keeps driving the motor for ten seconds. At the same
time, drive continuance alarm comes ON. Moreover, the drive continuance alarm keeps the same
condition without resetting.
For details, refer to the descriptions of function codes L98 (bit1).
■
Shutdown confirmation –
SD
(Function code data = 111)
Shutdown confirmation comes ON when the output current of the inverter equals the 3% of the
inverter rated current and satisfying any of the following condition.
- Terminal [EN1]/[EN2] OFF
-
BX
ON
ON
Detected
output current
BX
0%
3% of
the inverter rated current
ON
[EN]
ON
ALM
ON
SD
ON
ON
ON
ON
Depend on output current
Max. 10ms
Max. 10ms
2-65
Содержание Frenic lift
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