H-65
Economical PID Control
(A)
Photoelectric
Sensors
(B)
Fiber
Optic
Sensors
(C)
Door/Area
Sensors
(D)
Proximity
Sensors
(E)
Pressure
Sensors
(F)
Rotary
Encoders
(G)
Connectors/
Sockets
(H)
Temperature
Controllers
(I)
SSRs / Power
Controllers
(J)
Counters
(K)
Timers
(L)
Panel
Meters
(M)
Tacho /
Speed / Pulse
Meters
(N)
Display
Units
(O)
Sensor
Controllers
(P)
Switching
Mode Power
Supplies
(Q)
Stepper Motors
& Drivers
& Controllers
(R)
Graphic/
Logic
Panels
(S)
Field
Network
Devices
(T)
Software
Standard ON/OFF control mode [
STND
]
Cycle control [
CYCL
]
Phase control [
PHAS
]
A mode to control the load in the same way as Relay
output type.
(ON: output level 100%, OFF: output level 0%)
A mode to control the load by repeating output ON / OFF
according to the rate of output within setting cycle.
Having improved ON / OFF noise feature by Zero Cross
type.
A mode to control the load by controlling the phase within
AC half cycle. Serial control is available.
RANDOM Turn-on type SSR must be used for this mode.
Heating operation
Control
output
ON
OFF
▲ SV
Temperature
Hysteresis
[
HYS
]
Auto tuning [
AT
]
Hysteresis [
HYS
]
● When setting
AT
parameter to
ON
, front temperature unit
display (
℃
or
℉
) indicator will be flickering during Auto
tuning. After completing auto tuning, temperature unit
display indicator returns to normal operation and
AT
parameter automatically becomes [
ON
→
OFF
].
● Set as
OFF
to stop auto tuning.
※
It keeps previous P, I, D set values.
● If SV is changed during auto tuning mode, auto tuning is
stopped.
● PID time constants figured out through auto tuning function
can be changed.
● If control method [
C-MD
] is set to
ONOF
, no parameters
are displayed.
● Finish auto tuning when [
OPEN
] error occurs during the
operation.
※
In case of [
OPEN
] error, auto tuning operation is not
applicable.
● If Hysteresis is too narrow, hunting (oscillation,
chattering) could occur due to external noise.
● In case of ON / OFF control mode, even if PV reaches
stable status, there still occurs hunting. It could be due
to Hysteresis [
HYS
] SV, load’s response characteristics
or sensor’s location. In order to reduce hunting to a
minimum, it is required to take into following factors
consideration when designing temp. controlling;
proper Hysteresis [
HYS
], heater’s capacity, thermal
characteristics, sensor’s response and location.
● Set control output ON / OFF interval in ON / OFF control
mode.
Temperature unit selection [
UNIT
]
● A function to select display temperature unit
● Unit display indicator will be ON when converting
temperature unit.
Input correction [
IN-B
]
Controller itself does not have errors but there may be error
by external input temperature sensor.
E.g.) If actual temperature is 80
℃butcontrollerdisplays
78℃,setinputcorrectionvalue[
IN-B
]as002and
controllerdisplays80℃.
※
As the result of input correction, if current temperature
value (PV) is over each temperature range of input
sensor, it displays
HHHH
or
LLLL
.
Input digital filter [
MAvF
]
If current temperature (PV) is fluctuating repeatedly by rapid
change of input signal, it reflects to MV and stale control is
impossible. Therefore, digital filter function stabilizes current
temperature value.
●For example, set input digital filter value as 0.4 sec, and
it applies digital filter to input values during 0.4 sec and
displays this values. Current temperature may be different
by actual input value.
50Cycle
50Cycle
50%
80%
AC
OUT
ON
ON
OFF
OFF
AC
OUT
10%
50%
AC
OUT
Control method selection [
C-MD
]
It is selectable PID, ON/OFF control.
● In case of ON/OFF [
ONOF
] mode, Hysteresis [
HYS
]
parameter is displayed.
● In case of PID [
PID
] mode, Proportional band [
P
],
Integral time [
I
], and Derivative time [
T
] parameters are
displayed.
