Autonics TC4SP Handmatig - Pagina 11
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TC Series
Standard ON/OFF control mode [ STND ]
A mode to control the load in the same way as Relay
output type.
(ON: output level 100%, OFF: output level 0%)
Cycle control mode [ CYCL ]
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.
Phase control mode [ PHAS ]
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.
Auto tuning [ AT ]
● When setting AT parameter to ON , front temperature unit
display(℃ or ℉) lamp will be flickering during Auto
tuning. After completing auto tuning, temperature
unit display lamp 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.
Input correction [ IN-B ]
● Input correction is to correct deviation occurred from
temperature sensor such as thermocouples, RTD etc.
lIf you check the deviation of every temperature sensor
precisely, it can measure temperature accurately.
● Use this mode after measuring deviation occurred
from temperature sensor exactly. Because if measured
deviation value is not corrected, displayed temperature
may be too high or too low.
● When you set the Input revise value, you may need
to record it, because it will be useful when performing
maintenance.
Input digital filter [ MAvF ]
A function to filter input signals for more stable PV display
in order to provide stable control output. If noise occurs on
input signals or PV value keeps changing, it gets difficult to
perform high accuracy control since PV has a direct effect
on output level.
H-64
AC
OUT
ON
OFF
AC
OUT
50Cycle
50%
AC
OUT
10%
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.
Hysteresis [ HYS ]
● Set control output ON / OFF interval in ON / OFF control
mode.
ON
Control
output
● 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.
Temperature unit selection [ UNIT ]
● A function to select display temperature unit
● Unit display lamp will be ON when converting temperature
unit
ON
50Cycle
80%
50%
Heating operation
OFF
Hysteresis
[ HYS ]
Temperature
▲ SV
OFF