Hitachi L2002 Instruction Manual page 132

3–52
"C" Group: Intelligent Terminal Functions
Option Terminal
Code Symbol
23 PID
24 PIDC
27 UP
28 DWN
29 UDC
31 OPE
50 ADD
51 F-TM
52 RDY
Input Function Summary Table
Function Name
PID Disable ON
OFF
PID Reset ON
OFF
Remote Control ON
UP Function (motor-
ized speed pot.)
OFF
Remote Control ON
DOWN Function
(motorized speed
OFF
pot.)
Remote Control Data ON
Clearing
OFF
Operator Control ON
OFF
ADD frequency ON
enable
OFF
Force Terminal ON
Mode
OFF
Quick Start Enable ON
OFF
Description
Temporarily disables PID loop control. Inverter
output turns OFF as long as PID Enable is active
(A071=01).
Has no effect on PID loop operation, which
operates normally if PID Enable is active
(A071=01).
Resets the PID loop controller. The main conse-
quence is that the integrator sum is forced to
zero.
No effect on PID loop controller
Accelerates (increases output frequency) motor
from current frequency
Output to motor operates normally
Decelerates (decreases output frequency) motor
from current frequency
Output to motor operates normally
Clears the UP/DWN frequency memory by
forcing it to equal the set frequency parameter
F001. Setting C101 must be set=00 to enable this
function to work.
UP/DWN frequency memory is not changed
Forces the source of the output frequency setting
(A001) and the source of the RUN command
(A002) to be from the digital operator
Source of output frequency set by (A001) and
source of run command set by (A002) is used
Adds the A145 value (Add Frequency) to the
output frequency
Does not add the A145 value to the output
frequency
Force inverter to use input terminals for output
frequency and Run command sources
Source of output frequency set by (A001) and
source of Run command set by (A002) is used
Inverter output is always ON (even when motor
rotation has stopped) to improve motor startup
time.
Inverter output turns OFF normally in Stop
Mode.