219
Special operation and speed control
4) Reverse operation
Increases the manipulated variable (rotation speed) if deviation X = (set point - measured value) is positive, and decreases
the manipulated variable if deviation is negative.
5) Forward action
Increases the manipulated variable (rotation speed) if deviation X = (set point - measured value) is negative, and decreases
the manipulated variable if deviation is positive.
Relationships between deviation and manipulated variable (rotation speed)
(3) Connection diagram
Deviation
Positive
Negative
Reverse action
Forward action
Sink logic
Pr. 128 =
20
Pr. 182 =
14
Pr. 190 =
15
The power supply must be selected in accordance with the power specifications of the detector used.
The used output signal terminal changes depending on the
Pr. 190
and
Pr. 192 (output terminal selection)
settings.
The used input signal terminal changes depending on the
Pr. 178 to Pr. 182 (input terminal selection)
settings.
The AU signal need not be input.
Set point
X>0
X<0
Feedback signal
(measured value)
+
-
[Heating]
Deviation
Set point
Measured value
Decrease
Cold
Increase
Hot
Set point
X>0
X<0
Feedback signal
(measured value)
+
-
[Cooling]
Deviation
Set point
Measured value
Too cold
Decrease
Hot
Increase
Power supply
MCCB
Drive unit
Forward rotation
Reverse rotation
PID control selection
Setting Potentiometer
(Set point setting)
0
24V
Power
supply
*1
AC1
φ
200/220V 50/60Hz
R/L1
S/L2
T/L3
STF
STR
RH(X14)
*3
SD
10
2
5
4
*4
U
V
W
*2
(FUP)RUN
SE
(measured value) 4 to 20mA
Motor
M
Pump
P
Upper limit
Output signal
common
2-wire type
Detector
3-wire type
-
+
+
+
-
(OUT)
(24V)
(COM)
Summary of Contents for FR-D720-0.2K-G
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