Indicator Lamps

• Input: Input signal 4mA green led lamp is with weak light, green led lamp is complete light when input signal 20mA.
• TH Err: Temperature of cooling sheet is over 90°C, red led lamp is lighting which means over temperature, output of scr will stop, please check high ambient temperature or poor ventilation.
  (The SCR output resumes when the temperatures comes down to below 80°C.)