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5-4
H Words Allocated to SYSDRIVE 3G3FV-series Inverters
A SYSDRIVE 3G3FV-series Inverter is allocated a total of four SYSMAC I/O words (two input and two
output) via a CompoBus/D Communications Card.
I/O classification Word address
Bits
15 to 8 7 to 0
Output
n Not used. Inverter run commands
(SYSMAC PC to
Inverter)
n+1 Rotational speed reference
(leftmost bits)
Rotational speed reference
(rightmost bits)
Input
m Not used. Inverter status
(Inverter to
SYSMAC PC)
m+1 Rotational speed monitor
(leftmost bits)
Rotational speed monitor
(rightmost bits)
D Inverter Run Commands
Word n
Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Signal
name
Not used. Net Reference Net Control Not used. Not used. Fault Reset Reverse/
stop
Forward/
stop
Content --- 0: b1-01
1: CompoBus/D
(See note 1.)
0: b1-02
1: CompoBus/D
(See note 2.)
--- --- 0: ---
1: Fault
Reset
0: Stop
1: Reverse
0: Stop
1: Forward
Note 1. Net Reference is used to specify the frequency reference as follows (cannot be changed dur-
ing running):
0: The frequency reference input method specified by the frequency reference source selec-
tion (b1–01) is used.
1: Set b1–01 to “3” and operate via CompoBus/D. (Operate with rotational speed reference in
word n+1.)
Note 2. Net Control is used to change the run command as follows (cannot be changed during run-
ning):
0: The run command input method specified by the run command source selection (b1–02) is
used.
1: Set b1–02 to “3” and operate via CompoBus/D. (Follow run command in word n, bits 0 and
1.)
Note 3. The Net Reference and Net Control functions are applicable for Inverter software versions
S1042 and later. Check the version with the Inverter monitor function U1–14. If the software
version is S1040, set b1–01 and b1–02 to “3.”
D Inverter Status
Word m
Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Signal
name
At Reference Reference
From Net
Control From
Net
Inverter
Ready
During
reverse run
During
forward run
Warning
(Minor
Fault)
Fault
Content 0: Accelerating
or
Decelerating
1: At reference
0: b1-01
1: CompoBus/D
(See note 1.)
0: b1-02
1: CompoBus/D
(See note 2.)
0:
Preparing
1: Ready
0: Stop/
forward
1: During
reverse run
(See note 4.)
0: Stop/
reverse
1: During
forward run
(See note 5.)
0: Normal
1: Alarm
(Minor
Fault)
0: Normal
1: Fault
Note 1. Reference From Net shows the input status of word n, bit 6 (Net Reference) for CompoBus/D
communications.
CompoBus/D Communications Card Operations Chapter 5