Hitachi CONVENTION 14 Instruction Manual page 271

B − 28
B 28
Func.
Code
A071 PID enable
A072 PID proportional gain
A073 PID integral time
constant
A074 PID derivative time
constant
A075 PV scale conversion
A076 PV source setting
A077 Reverse PID action
A078 PID output limit
A081 AVR function select
A082 AVR voltage select
A085 Operation mode
selection
A086 Energy saving mode
tuning
List of Holding Registers
Name R/W
R/W Enables PID function,
two option codes:
00
01
R/W Proportional gain has a range of
0.2 to 5.0
R/W Integral time constant has a
range of 0.0 to 150 seconds
R/W Derivative time constant has a
range of 0.0 to 100 seconds
R/W Process Variable (PV), scale
factor (multiplier), range of 0.01
to 99.99
R/W Selects source of Process
Variable (PV), option codes:
00
01
02
10
R/W Two option codes:
00
01
R/W Sets the limit of PID output as
percent of full scale,
range is 0.0 to 100.0%
R/W Automatic (output) voltage
regulation, selects from three
type of AVR functions, three
option codes:
00
01
02
deceleration
R/W 200V class inverter settings:
00 200
01 215
02 220
03 230
04 240
400V class inverter settings:
00 380
01 400
02 415
03 440
04 460
05 480
R/W Two option codes:
00 Normal operation
01 Energy-saver operation
R/W Range is 0.0 to 100 %
Description
PID Disable
PID Enable
[OI] terminal (current in)
[O] terminal (voltage in)
ModBus network
Calculate function output
PID input = SP-PV
PID input = -(SP-PV)
AVR enabled
AVR disabled
AVR enabled except during
Network Data
Reg. Range Res.
1068h 0, 1
1069h 2 to 50 0.1
106Ah 0 to 1500 0.1 sec
106Bh 0 to 1000 0.1 sec
106Ch 1 to 9999 0.01
106Dh 0, 1, 2, 3
106Eh 0, 1
106Fh 0 to 1000 0.1 %
1070h 0, 1, 2
1071h 0 to 5
1072h 0, 1
1073h 0 to 1000 0.1 %