7.5.5 External Terminal Functions: H
7-66
Option Card/Inverter Selection (Setting: 2)
OFF
The Inverter frequency reference is enabled.
ON
The Option Card frequency reference is enabled.
D
With this setting, the multi-function input enables the frequency reference input from the Inverter itself
or the one from Option Card. The frequency reference input can be switched only when the Inverter
is stopped.
D
Be sure that b1-01 (the frequency reference source selector) has been set to 0 (Operator) or 1 (external
terminal). Only the frequency reference from the Option Card will be enabled if b1-01 is set to 3 (Op-
tion PCB).
D
Setting 2 can’t be selected if the AI-14B is being used and constant F2-01 (AI-14 Input Selector) is
set to 0.
D
Only frequency reference can be switched when the Option Card not corresponding to run command
(e.g. AI−14B, DI−16H) is used.
External Baseblock NO (Setting: 8)
OFF
Normal operation
ON
Baseblock
External Baseblock NC (Setting: 9)
OFF
Baseblock
ON
Normal operation
D
With either of these settings, the multi-function input controls baseblock operation.
D
Baseblock is an interruption of the Inverter output. The motor coasts while the baseblock command
is being input.
D
The output frequency is retained internally, so the same frequency will be output again when the base-
block command is cleared. The output frequency will change in a step pattern when the output re-
sumes, so take some safety precaution such as turning OFF the run command − especially if the base-
block command was input when the motor was operating at high speed. (When the run command is
turned OFF, the internally retained output frequency is reset to zero.)
D
After a baseblock command is cleared, the voltage will be restored in the voltage recovery time set in
L2-04.
Run/stop command
OFF ON
Baseblock command
Input
Cleared
Frequency reference
Output frequency
The retained output frequency
is output in a step pattern.
Coasting
Fig 7.34 Baseblock Command
Acceleration/Deceleration Ramp Hold (Setting: A)
OFF
Normal operation or restart acceleration/deceleration.
ON
Pause acceleration/deceleration and maintain the present frequency.
D
With this setting, the multi-function input pauses acceleration or deceleration and maintains (holds)
the output frequency.
D
Acceleration/deceleration is restarted when the acceleration/deceleration ramp hold input is turned
OFF.
D
The motor will be stopped if a stop command is input while the acceleration/deceleration ramp hold
input is ON.
D
When constant d4-01 (the frequency reference hold function selector) is set to 1, the held frequency
will be stored in memory. This stored frequency will be retained even after a power loss and the motor
will be restarted at this frequency when a run command is input again.
7
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