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GST303 /GST306
Extinguishing Control Panel
Installation and Operation Manual
Page 4
immediate start and delay start) and remains illuminating after relay output is
activated.
Release Confirm
LED: Red. It illuminates when corresponding zonal
pressure switch is activated.
Fault
LED: Yellow. It illuminates when connecting cable
between the control
panel and emergency gas override control or gas release warning indicator is
in short or open circuit; or when connecting cable between the control panel
and present primary or standby solenoid of cylinder is in short or open circuit,
or when power supply is lower than 20V.
Output Fault
LED: Yellow. It illuminates when connecting cable between the
control panel and primary or standby solenoid connected with gas
extinguishing control relay module is in short or open circuit.
Standby
LED: Green. Reserved for later use.
Stop
LED: Green. It illuminates when stop command is sent out.
Power
switch: Switching on or off the power of the control panel.
Reset
switch: Pressing this key, the control panel will be reset, and all output
signals will be stopped.
Manual Start
key: This key is to control manual keys on the front panel. The
manual keys cannot be operated when this key is disabled.
4.1.2 Internal Structure
Internal structure of the control panel is shown in Fig. 4-3 (taking GST306 as an
example). It shows the relative position of main board, zone control board, I/O board
and filter board, etc. Internal connection is shown in Fig. 4-4.
Fig. 4-3
①
Filter board
②
I/O board
③
Gas stop indicator board
④
Main
board
⑤
Zone control board