Oh2 Alarm Signal (Setting: B); Acceleration/Deceleration Ramp Hold; Multi-Function Analog Input Selection (Setting: C); No V/F Control With Pg (Setting: D) - YASKAWA VARISPEED-616G5 Instruction Manual

Run/stop command
Acceleration/deceleration
ramp hold
Frequency reference
Output frequency
Fig 7.35

Acceleration/Deceleration Ramp Hold

When d4-01 is set to 1, the held output frequency will be retained. To operate at this frequency even
D
after the Inverter is stopped, input the run command with the acceleration/deceleration ramp hold input
ON.
When d4-01 is set to 0, the output frequency will be held at zero if the run command is input with the
D
acceleration/deceleration ramp hold input ON.

OH2 Alarm Signal (Setting: B)

OFF
Normal operation
ON
Normal operation (The warning message "OH2" will be displayed on the Digital Operator.)
The message "OH2" will be displayed on the Digital Operator while the multi-function input is ON
D
and the display will revert to its previous status when the input is turned OFF. (It isn't necessary to reset
the alarm.) The Inverter will continue operation without detecting a fault.
With this setting, a temperature sensor can be connected to the multi-function input to display a warn-
D
ing message when the temperature rises too high.

Multi-function Analog Input Selection (Setting: C)

OFF
Disables the multi-function analog input (terminal 16).
Enables the multi-function analog input (terminal 16).
ON
With this setting, the multi-function input can be used to enable or disable the multi-function analog
D
input.
Turning the input OFF has the same effect as setting H3-05 (the multi-function analog input selector
D
for terminal 16) to 1F.

No V/f Control with PG (Setting: D)

OFF
V/f control with PG feedback (enables speed control with speed feedback)
ON
Normal V/f control (disables speed feedback control.)
With this setting, the multi-function input can be used to switch "V/f control with PG feedback" to
D
"Normal V/f control." It is possible to switch between these control methods during operation.
Speed Control Integral Reset (Setting: E)
OFF Operates with PI-control speed control loop.
ON
Operates with P-control speed control loop. (The speed control integral values are reset by the
integral time constant.)
This function is valid only for V/f control with PG feedback when constant F1-07 is set to 0. (Setting
D
F1-07 to 0 disables integral operation during acceleration/deceleration.)
It is possible to switch between these speed control modes during operation.
D
OFF ON
OFF ON OFF
Hold
7 - 67
OFF ON
ON
Hold
d4-01=1
d4-01=0
7