3-10
Displaying running status (
3_07
) and running status 2 (
3_23
)
To display the running status and running status 2 in 4-digit hexadecimal format, each state has been assigned to bits 0 to 15 as
listed in Tables 3.7 and 3.8. Table 3.9 shows the relationship between each of the status assignments and the LED monitor
display.
Table 3.10 gives the conversion table from 4-bit binary to hexadecimal.
Table 3.7 Running Status (
3_07
) Bit Assignment
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 "1" under torque limiting control.
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 "1" during braking.
11 ALM "1" when an alarm has occurred. 3 INT "1" when the inverter output is shut down.
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 3.8 Running Status 2 (
3_23
) Bit Assignment
Bit Notation Content Bit Notation Content
15 7 ― Speed limiting (under torque control)
14 6 ― (Not used.)
13 5 ―
12 4 ―
Motor selection
00: Motor 1
01: Motor 2
10: Motor 3
11: Motor 4
11 3 ―
10 2 ―
9 1 ―
8
― (Not used.)
0 ―
Inverter drive control
0000: V/f control with slip compensation
inactive
0001: Dynamic torque vector control
0010: V/f control with slip compensation
active
0011: V/f control with speed sensor
0100: Dynamic vector control with
speed sensor
0101: Vector control without speed sensor
0110: Vector control with speed sensor
1010: Torque control
(Vector control without speed
sensor)
1011: Torque control
(Vector control with speed sensor)
Table 3.9 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
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