E2Prom Write Selection (Pr. 342); Pid Control (Pr. 128 To Pr. 134) - Mitsubishi Electric FR-V560 Instruction Manual

PID control (Pr. 128 to Pr. 134)

2
4.14.2 E PROM write selection (Pr. 342)
2
You can select either E
operation (RS-485 communication by PU connector) and operation with a communication option. When changing
the parameter values frequently, write them to the RAM (Pr. 342 = 1).
Parameter Name
2
342
E PROM write selection
Pr. 342 Setting
0
(factory setting)
1
REMARKS
When the parameter setting is "not written to the E
2
in the E PROM) at power-on reset or terminal reset.
4.15 PID control (Pr. 128 to Pr. 134)
4.15.1 PID control (Pr. 128 to Pr. 134
The inverter can be used to exercise process control, e.g. flow rate, air volume or pressure.
The voltage input signal (0 to ±10V) is used as a feedback value to constitute a feedback system for PID control.
Parameter
Name
Number
128 PID action selection
129 PID proportional band
130 PID integral time
131 Upper limit
132 Lower limit
PID action set point for
133
PU operation
134 PID differential time
<Setting>
(1) Basic PID control configuration
Pr.128 = 10, 11
Terminal 1
Set
point
Process
value
Pr.128 = 30, 31
Terminal 2
Set
point
Kp: Proportional constant
PROM or RAM to which parameters to be written during computer link communication
Factory Setting
2
E PROM write
Powering off the inverter will not erase the changed parameter values.
RAM write
Powering off the inverter will erase the changed parameter values. Therefore, the parameter
values available when power is switched on again are the values stored in E
2
PROM" (setting=1), the settings return to the original values (values saved
Factory
Setting
10
100%
1s
9999
9999
0%
9999
Deviation
x PID
Kp
operation
Deviation
x PID
Kp
operation
+
-
Process value
Terminal 1
Ti: Integral time
0
Write into E
0
1 Write into RAM
with without
Encoder Encoder
)
Speed
Setting Range
10, 11, 30, 31
0.1 to 1000%, 9999
0.1 to 3600s, 9999
0 to 100%, 9999
0 to 100%, 9999
0 to 100%
0.01 to 10.00s, 9999
Manipulated
variable
fi
1 + Td·S
1 +
Ti·S
Manipulated
variable
fi
1 + Td·S
1 +
Ti·S
S: Operator Td: Differential time
152
Setting Value
2
PROM
2
PROM last time.
Remarks
9999: No proportional
control
9999: No integral control
9999: Function invalid
9999: Function invalid
9999: No differential control
Inverter
Motor
Drive
IM
circuit
Inverter
Motor
Drive
IM
circuit