Mitsubishi Electric FR-D720S SC EC, Instruction Manual

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Parameter Frequency setting by external terminals
FR-D700 SC EC 6 - 55
6.5.3 Remote setting function (Pr. 59)
Even if the operation panel is located away from the enclosure, you can use contact signals to
perform continuous variable-speed operation, without using analog signals.
The above parameter can be set when Pr. 160 = 0.
Pr. 59 can be used to select a digital motor potentiometer. Setting Pr. 59 to a value of "1" ac-
tivates the frequency setting storage function, so that the stored value is also stored when the
power is switched off. The last frequency value is stored in the E²PROM. The delete instruction
only applies to the data stored in RAM.
When Pr. 59 is set to any of "1 to 3" (remote setting function valid), the functions of the RH, RM
and RL signals are changed: RH
⇒
acceleration, RM
⇒
deceleration and RL
⇒
clear.
* External operation frequency (other than multi-speed) or PU running frequency.
Pr.
No.
Name
Initial
Value
Setting
Range
Description
Parameters referred to
Refer to
Section
RH, RM and RL
signal function Frequency setting
storage function
59
Remote function
selection
0
0 Multi-speed setting — 1
18
7
8
44
45
178–182
Maximum
frequency
High speed
maximum
frequency
Acceleration time
Deceleration time
Second accelera-
tion/deceleration
time
Second decelera-
tion time
Input terminal
function selection 6.3.1
6.3.1
6.6.1
6.6.1
6.6.1
6.6.1
6.9.1
1 Remote setting
✔
2 Remote setting —
3 Remote setting
—
(Turning STF/STR off
clears remote setting
frequency.)
Fig. 6-23:
Connection diagram for remote setting
I001132E
I001133E
Fig. 6-24: Example of the remote setting function
Forward rotation
Acceleration
Deceleration
Clear
Inverter
Acceleration RH
Deceleration RM
Clear RL
Forward rotation STF
Power supply
Pr. 59 = 1
Pr. 59 = 2, 3
Pr. 59 = 1, 2
Pr. 59 = 3
Output
frequency [Hz]
Time
ON
ON
ON
ON ON ON ON
ON
ON
ON ON