204
H9 ASD Installation and Operation Manual
ASD-to-ASD Communications (RS485 2-wire)
Program
Communications
Communication Settings
The function of this parameter is 2-fold:
1) In a Master/Follower configuration and while communicating via RS485
2-wire, this parameter sets the ASD as the Master or the Follower.
2) This parameter determines the function of the ASD while operating as the
Master or the Follower. If operating as the Master ASD, an output parameter
of the Master ASD is used to control the Follower ASDs and is set here.
If operating as a Follower ASD, the ASD response if an error is incurred is set
here.
Note:
Select a Follower function here if
F826
is configured as a
Master
Output
controller for any other ASD in the system. Otherwise, an
EOI
failure will result.
Changes made to this parameter require that the power be cycled (off then on)
for the changes to take effect.
Settings:
0 — Follower (Decel Stop If Error Detected)
1 — Follower (Continues Operation If Error Detected)
2 — Follower (Emergency Off If Error Detected)
3 — Master (Frequency Command)
4 — Master (Output Frequency)
5 — Master (Torque Reference)
6 — Master (Torque Command)
Direct Access Number — F806
Parameter Type —
Selection List
Factory Default —
Follower (Decel Stop)
Changeable During Run —
Yes
RS485 2-Wire Protocol Selection
Program
Communications
Communication Reference Adjust
This parameter sets the
RS485
(2-wire) communications protocol.
Settings:
0 — Toshiba
1 — Modbus
Direct Access Number — F807
Parameter Type —
Selection List
Factory Default —
Toshiba
Changeable During Run —
Yes
Frequency Point Selection
Program
Communications
Communication Reference Adjust
This parameter is used to set the communications reference for scaling.
See
F811
—
F814
for more information on this setting.
Note:
Scaling the communications signal is not required for all
applications.
Changes made to this parameter require that the power be cycled (off then on)
for the changes to take effect.
Settings:
0 — Disabled
1 — RS485 (2-Wire — NOT USED)
2 — RS485 (4-Wire)
3 — Communication Card
Direct Access Number — F810
Parameter Type —
Selection List
Factory Default —
Disabled
Changeable During Run —
Yes
F806
F810
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