
7 Operation
TENSION CONTROLLER TC808
7
There are two LED displays indicate the operating parameters.
The upper display(green) indicates the measured tension value(PV) when in base condition. On modifying a
parameter, the appropriate parameter appears.
The Lower display(red) indicates the setting tension value in the automatic mode. On modifying a parameter,
the appropriate value appears here. This display also indicates the output power, reel diameter in some
case.
When the controller is powered on, the upper display indicates the model code of the controller, and the
lower display indicates the software version.
3 seconds later, the upper display will indicates the measured tension(PV) while the lower display will
indicates the setting tension(SV).
The upper display will indicates the current measured reel radius when TC808 is configured as a 'Diameter
Tension Controllr' or a 'Diameter-Output program tension controller'.
The type of contents displayed on the lower display is changed every time the ‘Lower display selector’ key is
pressed. The type of contents displayed is indicated by the LED provided on the left side of the ‘Lower
display selector’ key.
When running in Diameter-Output program tension control mode and the indicator ‘N’ is lit, the lower display
will indicates the program number and segment number of the current running program. e.g. ‘L2.R3’ represent
Program 2 segment 3 is running.
Press Man/Auto key, automatic operation mode and manual operation mode can be changed conveniently.
When TC808 performs automatic operation, indicator ‘AUTO’ will be lit, if the setting tension is displaying on
the lower display at this time(LED ‘N’ is lit) press keys and to modify the setting tension. Adjustable
range: SP K~SP L.
When the controller performs manual operation, indicator ‘MAN’ will be lit, if output power is displaying on the
lower display at this time(LED ‘%’ is lit) the control output power can be modified by pressing and key.
Control output power can be turned ON and OFF by pressing ‘OUTPUT ON/OFF’ key. When indicator
‘OUTPUT ON/OFF’ is lit, output is ‘ON’ otherwise output is ‘OFF’, the output power becomes 0.
In automatic operation mode and when MC1 switch is turned on, indicator ‘OUTPUT ON/OFF’ will be lit;
when MC1 switch is turned off, indicator ‘OUTPUT ON/OFF’ will flash, at this time the output is permissive.
The green LED ‘OUT’ indicates the current control output level, higher the output power level, brighter the
LED. The LED will be turned off when the output becomes 0.
LED ‘OUTA’ indicates the output status of Reel-A, it is lit when Reel-A output is ON.
LED ‘OUTB’ indicates the output status of Reel-B, it is lit when Reel-B output is ON.
When measured tension is lower than ‘zero tension alarm value’(Code AL0), zero tension alarm indicator
‘ALM’ will be lit and at the same time relay ZT is ‘ON’, generate a alarm signal. Zero tension alarm don’t act
in Run/Stop and reel exchange progress.
The indicator 'COM' flashed when the TC808 is in active communication with a host computer.
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7.1 Display & Basic Operation
AUTOK
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