When “PID-RST” is turned ON, the derivative terms and integration terms of the PID controller are
reset.
• Hold PID integral component “PID-HLD”
When “PID-HLD” is turned ON, the integration terms of the PID controller are held.
Terminal Output Function
• Under PID control "PID-CTL"
When PID control is enabled and the RUN command is ON, the ON signal is output.
• During PID control, although control is in progress, the inverter may stop as a result of the sleep
function. Even in such a case, the "PID-CTL" signal remains ON.
Additional Information
During PID control, although control is in progress, the inverter may stop as a result of the sleep
function. Even in such a case, the "PID-CTL" signal remains ON.
8-9-14
Automatic Energy-saving Operation Function
This function automatically adjusts the inverter output power during constant speed operation to the
minimum level. It is suitable for load with reduced torque characteristics, such as fans and pumps.
T
o perform energy-saving operation using this function, set Energy-saving Operation Function Selec-
tion (301FHex-19Hex) to “1: Energy-saving operation.”
When the automatic energy-saving operation is enabled, it is possible to select Enable during running
at constant speed, and Enable during running at constant speed and acceleration/deceleration with
Auto Energy Saving Operation Condition Selection (3008Hex-44Hex).
Because this function controls the output power to the minimum necessary level, the motor may stall if
the rapid load fluctuation, such as impact load, occurs, which may result in an overcurrent trip.
Parameter No. Function name Data
Default da-
ta
Unit
301FHex-19Hex
Energy-saving Operation Func-
tion Selection
0: Normal operation
1: Energy-saving operation
0 -
3008Hex-44Hex
Auto Energy Saving Operation
Condition Selection
0: Enable only at constant
speed
1: Enable in all modes
0 -
8-9-15
Commercial switch (CS)
Commercial operation and inverter operation are switched by the “CS” terminal (15: Commercial
switch).
When switching between commercial operation/inverter operation is performed in an external se-
quence, input the CS allocated to multifunction input in accordance with the operation chart below.
Then, the inverter can be started from the commercial power supply frequency regardless of the set
frequency of the inverter
, and the motor during the commercial operation can be smoothly switched to
inverter operation.
8 Other Functions
8-125
M1 Series EtherCAT Type User’s Manual (I670)
8-9 Other Operation Functions
8
8-9-14 Automatic Energy-saving Operation Function
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