Mitsubishi Electric FR-A700 Technical Manual page 371

(3) Connection diagram (
• Sink logic
• [Pr. 128 = 20]
• [Pr. 183 = 14]
• [Pr. 191 = 47]
• [Pr. 192 = 16]
• [Pr. 193 = 14]
• [Pr. 194 = 15]
*1 The power supply must be selected in accordance with the power specifications of the detector used.
*2 The used output signal terminal changes depending on the [Pr. 190 to Pr. 196 Output terminal selection] setting.
*3 The used input signal terminal changes depending on the [Pr. 178 to Pr. 189 Input terminal selection] setting.
*4 The AU signal need not be input.
(4) I/O signals and parameter setting
To perform PID control, turn X14 signal ON in
. When this signal is off, PID action is not
A700 F700
performed and normal
performed. (Note that it is not necessary to turn ON
X14 signal when performing PID control with
LONWORKS or CC-Link communication.)
Set [Pr .128 =20, 21, 50, 51, 60, 61] in
[Pr. 128 =20, 21] in
D700
ON. When X14 signal is not assigned, PID control is
valid by just setting [Pr. 128 ].
If the multi-speed (RH, RM, RL signal) or JOG
operation (JOG signal) is entered with X14 signal
ON, PID control stops and multi-speed or JOG
operation starts.
Enter the set point across inverter terminals 2 and 5
or in [Pr. 133] and enter the measured value signal
across inverter terminals 4 and 5. At this time, set [Pr.
128] to 20 or 21.
When entering the deviation signal calculated
externally in
A700 F700
and 5. At this time, set [Pr. 128] to 10 or 11.
If the setting is as follows, PID control becomes
invalid.
• Switchover mode ([Pr. 79 = 6])
• Terminal 4 torque command ([Pr. 858 = 4])
• Terminal 1 torque command ([Pr. 868 = 4])
)
A700
MCCB
Power supply
Forward
rotation
Reverse
rotation
PID control
selection
Setting
Potentiometer
(Set point setting)
AC1φ
200/220V 50/60Hz
inverter operation is
, and set
E700
, and then turn X14 signal
, enter it across terminals 1
Inverter
Motor
R/L1 U
S/L2 V IM
T/L3 W
STF
STR
RT(X14)
*3
During PID action
(PID)SU
*2
SD
Upper limit
(FUP)FU
*2
(FDN)OL
Lower limit
10 *2
Forward rotation
2
(RL)IPF
*2
output
Reverse rotation
5
output
1
Output signal common
SE
4
(Measured value) 4 to 20mA
0 24V
Power
*1
supply
When PID control is selected, the minimum
frequency is the frequency set in [Pr. 902] and the
maximum frequency is the frequency set in [Pr. 903].
([Pr.1 Maximum frequency] and [Pr. 2 Minimum
frequency] settings are also valid.)
During PID operation, the remote operation function
([Pr. 59 ]) and functions set using [Pr. 292 Automatic
acceleration/deceleration] are invalid.
When X14 signal switches the control from normal
operation to PID control, the frequency command
during the normal operation is not retained, and new
frequency is calculated with PID by the 0Hz
reference.
Frequency
command
PID action
(X14 signal)
Normal
operation
Operation example of normal operation
405
PARAMETER
Pump
P
2-wire type
3-wire
type
Detector
- + + - +
(OUT) (24V)
(COM)
PID set value
Frequency command
in normal operation
ON
PID operation
Normal
operation
switching to PID control
2