5.3 Description of Function Codes
5-198
• Using J01 allows switching between normal and inverse operations for the PID control output, so you can
specify an increase/decrease of the motor rotating speed depending on the difference (error component)
between the commanded (input) and feedback amounts, making it possible to apply the inverter to air
conditioners. The terminal command IVS can also switch operation between normal and inverse.
For details about the switching of normal/inverse operation, refer to the description of “ Switch
normal/inverse operation – “IVS”” (E01 to E05, data = 21).
J02
PID Control (Remote command )
Related function code J105: PID control (Display unit)
J106: PID control (Maximum scale)
J107: PID control (Minimum scale)
J136 to J138: PID control multistep command 1 to 3
J02 sets the source that specifies the command value (SV) under PID control.
J02 data Function
0
Keypad
Specify the PID command by using the / keys on the keypad.
1
PID command 1 (Analog input: Terminals [12], [C1] (C1 function), [C1] (V2 function))
Voltage input to the terminal [12] (0 to ±10 VDC, 100% PID command/ ±10 VDC)
Current input to the terminal [C1] (C1 function) (4 to 20 mA DC, 100% PID command/ 20
mA DC)
Voltage input to the terminal [C1] (V2 function) (0 to +10 VDC, 100% PID command/ +10
VDC)
3
Terminal command UP/DOWN
Using the “UP” or “DOWN” command in conjunction with PID minimum scale to maximum
scale (specified by J106 and J107) with which the command value is converted into a
physical quantity, etc., you can specify 0 to 100% of the PID command (± 100% for PID
dancer control).
4
Command via communications link
Use function code S13 to specify the PID command by communications. The transmission
data of 20000d (decimal) is equal to 100% (maximum set point value) of the PID
command.
[ 1 ] PID command with the / keys on the keypad (J02 = 0, factory default)
Using the / keys on the keypad in conjunction with PID minimum / maximum scale (specified by J106 and
J107), you can specify 0 to 100% of the PID command (±100% for PID dancer control) in an easy-to-understand,
converted command format.
For details of operation, refer to Chapter 3 “3.3.5 Setting up PID commands from the keypad.”
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