Functions - Fuji Electric PXR4 Instruction Manual

6

Functions

6-1 ON/OFF control
• At ON/OFF control mode,output signal is as shown below.
Set parameter "P" = 0 for selecting the ON/OFF control mode.
Set the hysteresis to avoid chattering.
(Default setting: HYS = 1)
• Parameter setting and operation example
Example 1 : Reverse operation
Parameter
P
P-n1
HYS
Relation between
PV and SV
PV > SV
PV < SV
Example 2 : Direct operation
Parameter
P
P-n1
HYS
Relation between
PV and SV
PV > SV
PV < SV
Setting value
0.0
0 (or 1)
Any value
Output
OFF
ON
Setting value
0.0
2 (or 3)
Any value
Output
ON
OFF
– 18 –
ON
HYS
ON
SV
ON
HYS
ON
SV
PV
when PV increases
PV
when PV decreases
PV
when PV increases
PV
when PV decreases