92
G7 ASD Operation Manual
VI/II Speed Reference Setpoint #1 (%)
Program
⇒
Frequency Setting Parameters
⇒
Speed Reference
Setpoints
⇒
VI/II
This parameter is used to set the gain and bias of the VI/II input terminals when
either terminal is used as the control input while operating in the Speed
Control or the Torque Control mode.
Note:
See note on
pg. 46
for further information on the VI/II terminal.
Perform the following setup to allow the system to receive control input at the
VI/II terminals:
•
Program
⇒
Fundamental Parameters
⇒
Standard Mode Selection
⇒
Command Mode
⇒
Use Control Terminal Strip.
•
Program
⇒
Fundamental Parameters
⇒
Standard Mode Selection
⇒
Frequency Mode #1
⇒
Use VI/II.
•
Provide a Run command (F or R).
Gain and Bias Settings
When operating in the Speed Control mode, the settings that determine the
gain and bias of the VI/II terminals are:
•
VI/II Speed Reference Setpoint #1 (frequency)
(
F202
)
,
•
the VI/II input signal level that represents VI/II Speed Reference
Setpoint #1
(frequency):
F201
,
•
VI/II Speed Reference Setpoint #2
(frequency)
(
F204
)
, and
•
the VI/II input signal level that represents VI/II Speed Reference
Setpoint #2
(frequency):
F203
.
When operating in the Torque Control mode, the settings that determine the
gain and bias of the VI/II terminals are:
•
Torque Reference Setpoint #1 (%)
(
F205
)
,
•
the VI/II input signal level that represents the VI/II Torque
Reference Setpoint #1 (%):
F201
,
•
Torque Reference Setpoint #2 (%)
(
F206
)
,
•
the VI/II input signal level that represents Torque Reference
Setpoint #2 (%):
F203
.
Once set, as the VI/II input changes, the output frequency or the output torque
of the drive will vary in accordance with the above settings.
This parameter sets the VI/II input level that represents VI/II Speed Reference
Setpoint #1
(torque or frequency). This value is entered as 0 – 100% of the
VI/II input signal range.
The input signal may be trimmed using
F470
(Bias) and
F471
(Gain).
The default value for this parameter (
F201
) is 20%. The II input is commonly
used for the 4 – 20 mA current loop signal where 4 mA equals 20% of a 20 mA
signal. If the VI input is used (0 – 10 VDC input), parameter
F201
may be
changed to 0.0% (of the input signal).
Direct Access Number — F201
Parameter Type — Numerical
Factory Default — 20.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — 100.0%
Units — %
Frequency Settings
Torque Settings
VI/II Speed Reference Setpoint #1 (frequency)
Program
⇒
Frequency Setting Parameters
⇒
Speed Reference
Setpoints
⇒
VI/II
This parameter is used to set the gain and bias of the VI/II input terminals when
either terminal is used as the control input while operating in the Speed
Control mode.
See
F201
for further information on this setting.
This parameter sets VI/II Speed Reference Setpoint #1 (frequency) and is the
frequency that is associated with the setting of
F201
.
Direct Access Number — F202
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — Yes
Minimum — 0.0
Maximum — Max. Freq. (
F011
)
Units — Hz
F201
F202
