F810, F811, F812 – Toshiba H9 User Manual

Page 215

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H9 ASD Installation and Operation Manual

207

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)
2 — RS485 (4-wire)
3 — Communication Card

Direct Access Number — F810

Parameter Type — Selection List

Factory Default — Disabled

Changeable During Run — Yes

Point 1 Setting

Program

⇒

Communications

⇒

Communication Reference Adjust

When enabled at

F810

, this parameter is used to allow the user to set the gain

and bias of the speed control input to the drive when the speed control signal is
received via the source selected at

F810

Gain and Bias Settings

When operating in the Speed Control mode and using one of the control
sources from Settings above, the settings that determine the gain and bias
properties of the input signal are:

• Communications Reference Speed Setpoint #1

(frequency)

(

F812

• the communications input signal value that represents Communications

Reference Speed Setpoint #1

(frequency)

F811

• Communications Reference Speed Setpoint #2

(frequency)

(

F814

), and

• the communications input signal value that represents Communications

Reference Speed Setpoint #2

(frequency)

F813

Once set, as the input signal value changes, the output frequency of the drive
will vary in accordance with the above settings.

This parameter sets the Communications Reference input value that represents
Communications Reference Speed Setpoint #1 (frequency). This value is
entered as 0 to 100% of the Communications Reference input value range.

Changes made to this parameter require that the power be cycled (Off then On)
for the changes to take effect.

Direct Access Number — F811

Parameter Type — Numerical

Factory Default — 0

Changeable During Run — Yes

Minimum — 0

Maximum — 100

Units — %

Point 1 Frequency

Program

⇒

Communications