Mitsubishi Electric FR-D720S SC EC Instruction Manual page 308

Frequency setting by analog input (terminal 2, 4)
2. Method to adjust any point without application of a voltage (current) to across terminals 2-5
(4-5).
(This example shows how to change from 4V to 5V, assuming that Pr. 241 is set to "1".)
Confirmation of the RUN indication and
operation mode indication.
The inverter must be at a stop.
The inverter must be in the PU operation
mode (using the PU/EXT key).
Press the MODE key to choose the
parameter setting mode.
Turn the digital dial until "C..." appears.
Press the SET key until "C---" appears.
Turn the digital dial until "C 4 (C 7)"
appears. Set to C4 "Terminal 2 frequency
setting gain".
Press the SET key to display the analog
voltage (current) value (%).
Turn the digital dial to set the gain of the
voltage signal value. If Pr. 241 is set to "1"
the value will be displayed directly.
CAUTION:
When you start turning the digital dial
the value that is currently stored
(in this example 4V) will be displayed.
Press the SET key to set.
By turning the digital dial, you can read another parameter.
Press the SET key to return to the "C---" indication (step
Press the SET key twice to show the next parameter (Pr.CL).
Fig. 6-86: Bias and gain adjustment without application of an reference signal
NOTE
By pressing the digital dial after step
gain setting. It cannot be confirmed after execution of step
6 - 158
Operation Display
PRM indication is lit.
The parameter number read
previously appears.
C1 to C7 setting is
enabled.
Voltage input
Analog voltage (current) value (%)
across terminals 2-5 (across
terminals 4-5) and the „A" indication
or no indication is lit.
The gain frequency is reached when
a voltage of 5.0V is displayed.
Flicker ... Parameter setting complete!
(Adjustment completed)
).
, you can confirm the current frequency setting bias/
.
Parameter
Current input
Voltage Current
input input
I001887E