Fuji Electric Frenic Mini FRN001C1E-2U, Instruction Manual

Page: 66 / 196

3-21
Displaying running status
To display the running status in hexadecimal format, each state has been assigned to bits 0 to 15 as
listed in Table 3.12. Table 3.13 shows the relationship between each of the status assignments and
the LED monitor display. Table 3.14 gives the conversion table from 4-bit binary to hexadecimal.
Table 3.12 Running Status Bit Allocation
Bit Notation Content Bit Notation Content
15 BUSY
1 when function code data is being
written.
7 VL 1 under voltage limiting control.
14 Always 0. 6 TL Always 0.
13
WR
Always 0. 5 NUV
1 when the DC link bus voltage is
higher than the undervoltage level.
12 RL
1 when communication is enabled
(when ready for run and frequency
commands via communications
link).
4 BRK Always 0.
11 ALM 1 when an alarm has occurred. 3 INT
1 when the inverter output is
stopped.
10 DEC 1 during deceleration. 2 EXT 1 during DC braking.
9 ACC 1 during acceleration. 1 REV
1 during running in the reverse
direction.
8 IL 1 under current limiting control. 0 FWD
1 during running in the forward
direction.
Table 3.13 Running Status Display
LED No. LED4 LED3 LED2 LED1
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Notation BUSY WR RL ALM DEC ACC IL VL TL NUV BRK INT EXT REV FWD
Binary 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1
Example
Hexa-
decimal
on the
LED
monitor