Pid Control; Parameter Unit Display Language Selection; Switch Between The Inverter Operation And Commercial Power-Supply Operation To Use; Detection Of Output Current (Y12 Signal) Detection Of Zero Current (Y13 Signal) - Mitsubishi Electric FR-A700 Manual

Pr.
Pr.
127 to 134, 575 to 577

PID control

Pr.127 PID control automatic switchover frequency
Pr.129 PID proportional band
Pr.131 PID upper limit
Pr.133 PID action set point
Pr.575 Output interruption detection time
Pr.577 Output interruption cancel level
The inverter can be used to exercise process control, e.g. flow
rate, air volume or pressure.
The terminal 2 input signal or parameter setting is used as a set
point and the terminal 4 input signal used as a feedback value to
constitute a feedback system for PID control.
⋅ Pr.128 = "10, 11"(deviation value signal input)
Deviation signal
Set point
+ -
Terminal 1
Kp
0 to 10VDC
(0 to 5V)
To outside
Feedback signal (measured value)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
⋅ Pr.128 ="20, 21"(measured value input)
Inverter circuit
Pr. 133 or
terminal 2
+ -
Set point Kp 1+
0 to 5VDC
(0 to 10V, 4 to 20mA) Terminal 4
Feedback signal (measured value)
Kp: Proportionality constant Ti: Integral time S: Operator Td: Differential time
Pr.
Pr.
135 to 139, 159
Switch between the inverter operation and
commercial power-supply operation to use
Pr.135 Commercial power-supply switchover sequence output terminal selection
Pr.136 MC switchover interlock time
Pr.138 Commercial power-supply operation switchover selection at an alarm
Pr.139 Automatic switchover frequency between inverter and commercial power-supply operation
Pr.159 Automatic switchover ON range between commercial power-supply and inverter operation
The complicated sequence circuit for commercial power supply
inverter switchover is built in the inverter. Hence, merely inputting
the start, stop or automatic switchover selection signal facilitates
the interlock operation of the switchover magnetic contactor.
Commercial operation can not be performed with the Mitsubishi
vector motor (SF-V5RU).
Pr135 Setting
Without commercial power-supply switchover
0 (initial value)
sequence
1
With commercial power-supply switchover sequence
Sink logic type, Pr.185 ="7", Pr.192 ="17", Pr.193 ="18", Pr.194 ="19"
MC1
MCCB
R/L1
S/L2
T/L3
R1/L11
S1/L21
Inverter start
(forward rotation)
STF
Inverter/commercial
power-supply switchover CS
MRS
Operation interlock
*3
External
JOG(OH)
thermal reset
RES
SD
10
Frequency
2
setting signal
5
Commercial power-supply switchover sequence connection diagram
*1 Take caution for the capacity of the sequence output terminal.
*2 When connecting a DC power, insert a protective diode .
*3 The used terminal changes according to the Pr.180 to Pr.189 (input terminal
function selection) settings.
Pr.
Pr.
140 to 143
Refer to the section about Pr.29.
Pr.
Pr.
144
Refer to the section about Pr. 37.
When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.128 PID action selection
Pr.130 PID integral time
Pr.132 PID lower limit
Pr.134 PID differential time
Pr.576 Output interruption detection level
Inverter circuit
Motor
Manipulated
PID operation
variable
IM
1
1+
+Td S
Ti S
Motor
Manipulated
PID operation
variable
IM
1
+Td S
Ti S
4 to 20mADC (0 to 5V, 0 to 10V)
Pr.137 Start waiting time
Description
MC2
External
thermal relay
MC3
U
V IM
W
*1
MC
(MC1)IPF
1
MC3
*1
MC
(MC2)OL *2
2
24VDC
MC2
*1
MC
(MC3)FU
3
SE
Pr.
Pr.
145

Parameter unit display language selection

Pr.145 PU display language selection
You can switch the display language of the parameter unit (FR-
PU04/FR-PU07) to another.
Pr.145 setting
0 (initial value)
1
2
3
4
5
6
7
Pr. Pr.
148, 149
Refer to the section about Pr.22.
Pr.
Pr.
150 to 153, 166, 167
Detection of output current (Y12 signal)
detection of zero current (Y13 signal)
Pr.150 Output current detection level
Pr.152 Zero current detection level
Pr.166 Output current detection signal retention time
The output current during inverter running can be detected to
output at the output terminal.
(1) Output current detection
(Y12 signal, Pr.150, Pr.151, Pr.166, Pr.167)
⋅ The output current detection function can be used for
excessive torque detection, etc.
⋅
If the output current remains higher than the Pr.150 setting
during inverter operation for longer than the time set in
Pr.151, the output current detection signal (Y12) is output
from the inverter's open collector or relay output terminal.
Pr.166 9999, Pr.167 = 0
Pr.150
Output current
Output current
detection signal OFF
(Y12)
(2) Zero current detection (Y13 signal, Pr.152, Pr.153 )
⋅ If the output current remains lower than the Pr.152 setting
during inverter operation for longer than the time set in
Pr.153, the zero current detection (Y13) signal is output
from the inverter's open collector or relay output terminal.
Output
current
Pr.152
Pr.152
0[A]
OFF ON
Start signal
OFF
Zero current
detection time
Pr. 153
(Y13)
Detection time
* Once turned on, the zero current detection time
signal (Y13) is held on for at least 100ms.
Pr.
Pr.
154
Refer to the section about Pr.22.
Description
Japanese
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Swedish
Finnish
Pr.151 Output current detection signal delay time
Pr.153 Zero current detection time
Pr.167 Output current detection operation selection
Pr.151
Time
Pr.166
Minimum 100ms
(initial value)
OFF
ON
100ms
Time
*
OFF
ON ON
Pr. 153
Detection time
58