-
14 -
(2) (DA
characteristics)
Control output decreases for lower measured value relative to set value, it is used for cooling on temperature control.
6-4. Error message
The following error messages are shown on the PV display screen in case of defect.
(1) Defect of measuring input
In case of thermocouple break, R.T.D.A break and PV being approx. 10% greater than higher limit of measuring range.
In case of PV being approx. 10% less than the lower limit of measuring range with inverted polarity of input wiring.
Cold junction (CJ) defect to higher side for thermocouple input.
Cold junction (CJ) defect to lower side for thermocouple input.
Break of B or B and multiple break of A, B, B upon R.T.D. input
(2) Defect of heater break alarm CT
CT input value is greater than 55A.
CT input value is less than -5A.
NOTE: Message of heater break alarm is only displayed on heater break alarm set screen.
is shown when output is OFF. It is not defective.
NOTE: Contact to us or our representative in case of any defect regarding this product.
100%
0%
low
high
low
high
PV
P
*
*
P
SV
100%
0%
PV
SV
P=Proportionl
band
(RA characteristics)
(DA characteristics)
Control
output
Control
output
*
6-3. Control output characteristics (
digit of mode 2 screen)
Control output characteristics determines the control output direction according to the measured value (PV) relative to the set value (SV).
(1) (RA
characteristics)
Control out put increases for lower measured value relative to set value, it is used for heating on temperature control.
