Mitsubishi Electric FR-F500 Series Instruction Manual page 137

4) Reverse action
Increases the manipulated variable (output frequency) if deviation X = (set point - process value) is
positive, and decreases the manipulated variable if deviation is negative.
Set point
5) Forward action
Increases the manipulated variable (output frequency) if deviation X = (set point - process value) is
negative, and decreases the manipulated variable if deviation is positive.
Set point
Relationships between deviation and manipulated variable (output frequency)
Reverse action
Forward action
( 3 ) Wiring example
• Sink logic
• Pr. 128 = 20
• Pr. 183 = 14
• Pr. 192 = 16
• Pr. 193 = 14
• Pr. 194 = 15
Note: 1. The power supply must be selected in accordance with the power specifications of the detector
used.
2. The output signal terminals used depends on the Pr. 191 to Pr. 194 settings.
3. The input signal terminals used depends on the Pr. 180 to Pr. 186 settings.
[Heating]
X>0
+
X<0
-
Feedback signal
(Process value)
[Cooling]
X>0
+
X<0
-
Feedback signal
(Process value)
Deviation
Positive Negative
& '
' &
NFB
Power supply
Forward rotation
Reverse rotation
PID control selection
Setting potentiometer
(Set point setting)
AC1φ
200/220V 50/60Hz
Deviation
Cold → up
Hot → down
Process value
Too cold → down
→ up
Hot
Deviation
Inverter
R 〈L 〉
U
1
S 〈L 〉
V
2
T 〈L 〉
W
3
STF
STR
RT(Note 3)
(Note 2)
SD
FU
OL
10
IPF
2
5
SE
1
Output signal common
4
(Process values) 4 to 20mADC
0 24V
DC
power
(Note 1)
supply
124
PARAMETERS
Set point
Process value
Set point
Motor Pump
IM
P
For 2-wire
Detector
type
Upper limit
Lower limit
- + +
Forward
rotation output
Reverse
rotation output
(OUT)
For 3-wire
type
- +
(COM) (24V)