Mitsubishi Electric FR-A700 Series, Technical Manual

Page: 192 / 550

226
PARAMETER
2.4.5 Remote setting function [Pr. 59]
(common)
When "1 to 3" is set in [ Pr. 59 ], the functions of the RH, RM
signals are changed to input function of remote setting.
Setting is available for both PU operation mode and External
operation mode.
Note that this is different with a function of motorized speed
setter (FR-FK).
1)During acceleration
Set frequency increases when RH signal turns ON.
Speed of increase depends on [ Pr. 44 Second
acceleration/deceleration time ].*1
When RH signal turns OFF, increase of set frequency
is stopped and the set frequency at that moment is
retained.
2)During deceleration
Set frequency decreases when RH signal turns ON.
Speed of decrease depends on [ Pr. 45 Second
deceleration time ]. When "9999" is set to [ Pr. 45 ], the
speed of decrease is equal to the [ Pr. 44 ] setting.*1
When RH signal turns OFF, decrease of set
frequency is stopped and the set frequency at that
moment is retained.
3)Output frequency
4)Frequency setting storage
When [
Pr. 59 = 1
], the remotely-set frequency is
stored every minute after turning OFF (ON) of both
the RH (acceleration) and RM (deceleration) signals.
The set frequency when STF (STR) turned OFF is
also stored. (The frequency is overwritten if the latest
frequency is different from the past frequency when
comparing the two. The state of the RL signal does
not affect storing.)
When [
Pr. 59 = 2, 3
], set frequency is not stored.
Therefore turning OFF the power and then turning
ON will make the set frequency to 0Hz.
5)Setting Clear
Remotely-set frequency is cleared to 0Hz when RL
signal turns ON with [
Pr.59 = 1 or 2
], or when
STF(STR) signal turns OFF with [
Pr. 59 = 3
].
*1 When the acceleration or deceleration signal switches
on, the set frequency varies according to the slope set in
[
Pr. 44 ] or [ Pr. 45 ]. The acceleration/deceleration time of
output frequency is as set in [ Pr. 7, 8 ]. Therefore, the
longer preset time is used to vary the actual output
frequency.
*2 Multi-speed operation does not function when remote
setting function is selected ("1 to 3" is set in [
Pr. 59 ]).
*3 Remote setting function does not function when Jog
operation or PID control is selected.
*4 Keeping RH signal ON does not increase frequency
beyond the maximum frequency.
*5 The wiring length should be within 30m.
common
[ Pr. ] Name
Initial
Value Setting
Range
Description
RH, RM, RL
signal
function
Frequency
setting storage
function
59
Remote
function
selection
0
0
Multi-Speed
Setting
—
1
Remote
setting
Yes
2
Remote
setting
No
3
Remote
setting
No
(Turning STF/STR
OFF clears remotely-
set frequency)
External operation
Frequency set with RH and RM ope
external operation frequency other than multi-
speed (When making input compensation
(terminal 1), set [
Pr. 28 = 1 ].)
PU operation
Frequency set with RH and RM operation +
PU operation frequency
External operation frequency (other than multi-speed) or PU running frequency
Deceleration
(RM)
Clear (RL)
Acceleration
(RH)
Forward
rotation (STF)
ON ON
Power supply
ON
0Hz
*
ON
ON
ON
ON
ON
ON
When [ Pr. 59 = 1]
When [ Pr. 59 = 2, 3]
ON
ON
Output frequency (Hz)
When [ Pr. 59 = 1, 2]
When [ Pr. 59 = 3]
Time
Acceleration
Deceleration
Clear
Inverter
STF
RH
RM 10
2
5
RL
Connection
diagram for remote setting
Forward
rotation
SD