Mitsubishi Electric FR-F800 Series Instruction Manual page 467

• For the Y229 and Y230 signals, assign the functions using Pr.190 to Pr.196 (Output terminal function selection).
Output signal
Y229
Y230
• To monitor the input pressure, set "69" in the monitor selection parameters. (0.1% increments)
Monitor item
PID input pressure value 69
For reverse action
Input pressure
Input pressure warning level
Input pressure fault level
Output frequency
NOTE
• When the control switches between the first PID control and second PID control while the set point is changed by the Pr.1380
setting value or while the Y229 (Y230) signal is output, the set point first returns to its original value, and is changed to the
value after the switching.
• When the PID input pressure control function and the PID upper/lower limit pre-warning function are used simultaneously,
each function may change the set point. When the set point change is attempted by both functions, the change by the PID
input pressure control function has priority.
• When the PID input pressure control function and the PID sleep boost function are used simultaneously, each function may
change the set point. When the set point change is attempted by both functions, the change by the PID input pressure control
function has priority. (The sleep state is established without applying the set point change by the PID sleep boost function.)
5.11.12 Automatic restart after instantaneous power
failure/flying start with an induction motor
V/F V/F V/F Magnetic flux Magnetic flux Magnetic flux
The inverter can be restarted without stopping the motor operation in the following situations:
• When switching from commercial power supply operation over to inverter running
• When an instantaneous power failure occurs during inverter running
• When the motor is coasting at start
466
5. PARAMETERS
5.11 (A) Application parameters
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Positive logic
229
230
Pr.52, Pr.774 to
Pr.776, and Pr.992 Pr.54 (Terminal FM/CA
(Operation panel
indication)
69
Input pressure
(Pr.1378)
(Pr.1379)
Pr.1370 Pr.1370 Pr.1370
Set point
Pr.1380
Pr.1373 Pr.1373
ON
Y229
Y230
search engine
Pr.190 to Pr.196 setting
Negative logic
329
330
Parameter Setting
Pr.158 (Terminal AM
output) output)
69
Pr.1370 Pr.1370 Pr.1370
ON
When Pr.1381 = "0"
When Pr.1381 = "1"
Output shutoff
(Pr.1381 = "0")
Communication monitor code
RS-485
communication
dedicated monitor
(hexadecimal)
H45
Time
Pr.1370 Pr.1370 Pr.1370
Time
ON
Deceleration stop Deceleration stop Deceleration stop
(Pr.1381 = "1") (Pr.1381 = "1") (Pr.1381 = "1")
Time
When Pr.1381 = "1", operation can be
restarted after the input pressure
reaches or exceeds the Pr.1378 setting.
MODBUS RTU
real time
monitor
40269