www.temcoline.com
DIGITAL PID CONTROLLER
34
5) Heater Ammeter and HBA (Heater Burnout Alarm) Setting Group
Temcoline's T50 SERIES supports instrument-level precision AC ammeter. It
supports real-time AC current monitoring and HBA (heater break alarm) function
of 0.1 ~ 38.0 A maximum.In normal operation mode, heater current can be
monitored at the same time as current temperature.
Press and hold for more then
3 seconds.
ⓐ SV: Set value ⓑ SV:
Heater current
Short
1
Shortly 4 times
4
HBA Setting group
CT (800:1)
AC 200V
Heater(1KW x 2)
Control output contactBurn-out
T54-C2x, C5x (HBA OPTION MODEL)
Current transfomer (800:1)
TC8L or CTL-6-S
< Normal operation menu >
Current setting of heater break alarm
(OFF ~ 40.0A)
Hysteresis setting of heater break alarm
(0.0 ~ 20.0A)
Heater break alarm start point setting
(0 ~ 100%/output When setting SCR (#2)
Heater Current Monitor
(AC 0.1 ~ 38.0A)
Heater current compensation
(CT tolerance compensation)
(-10.0 ~ 10.0A)
Heater current monitoring
HOLD function(ON/OFF)
Activation for current monitoring
at Normal operation mode
Enables current monitoring for normal operation menu.
Enables control output for normal operation menu.
When the external current monitoring
function is enabled, the heater current can be
checked from the normal operation menu in
real time, just like the current temperature.
① HBA(heater break alarm) current setting procedure is as follows
※ In case of heater break alarm, A1TY (Alam 1 type set) must be set to 21 to use.
② Hdb(Heater break alarm Dead band or hysteresis): This function is to prevent
malfunction when the current change approaches or exceeds the set value.
③
HbS(Heater break alarm start point setting): Displayed only when control
output (3) is used. Set when using power control element such as TPR.
Hdb Setting value = (maximum current - minimum current) x 1.4
HbS Setting value = target setting value(SV) Control output during convergence(MVn) x 0.3
HBA Setting value = = = 7.5 [A]
Normal current value + burn-out current 10A + 5A
2 2
However, it is not applicable when the control output SCR (2) is used.
④ H.[A](Heater current monitor): The AC current flowing in the current heater is
accurately measured and displayed at 0.1 to 38.0 A. When "H.EXT" is turned ON,
the SV display window of the normal operation menu is displayed in real time.
⑤
H.Adj(Heater current compensation): Calibration is possible when using a
different ratio of CT than the current detector tolerance or 800: 1.
⑥ H.HLd(Heater current hold): The output when the control output is used by
SSR (1) or Relay (3) is output in time division. At this time, it is very difficult to
read the instantaneous current value. Therefore, the last measured current
value can be temporarily held and the correct current value can be measured
at any time.
H.Adj correction value = x Measurement deviation
For example, assuming a current of 10A is displayed at 9.8A,
H.Adj correction value = x 0.2 A =0.775 ≒ 0.8 A
38 A
Measured value
38 A
9.8 A
ⓐ
Target
temperature
ⓑ control output (MVn)
ⓒ Heater current
To Next Page
Loading...
Need help?
General
