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Emerson 48330 Manuel D’Utilisation

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Chapter 1  System Description      7 
ACTURA Flex 48330
 
Power System  User Manual 
Table 1-3    Function of indicators 
LED 
Normal 
Abnormal 
Cause of abnormality 
OFF 
No AC Mains Supply 
Power indicator (green)  ON 
Blinking 
Rectifier is under control by SCU 
ON 
AC input over/under voltage, PFC 
over/under voltage and over temperature 
Protection indicator 
(yellow)  
OFF 
Blinking 
Communication of rectifier with SCU failure 
ON Output 
Over-voltage 
Alarm indicator (red)   
OFF 
Blinking Fan 
Failure 
 
1.5.3  SCU
 
Outline 
 
Figure 1-5    Outline of SCU 
Dimension (H 
% W % D):132mm % 85mm % 287mm 
Weight: 0.76kg 
Multi-Communication mode 
SCU communicates with MC (Main Computer) through the RS232/MODEM 
communication port and 8 groups of alarm dry contacts on the Signal Junction 
Board. 
SCU supports both China Telecom Communication Protocol and EEM Protocol. 
Make sure that the baud rates for receiving and transmitting are set to be 
consistent when using SCU. 
1. Communication through RS232 
RS232 communication mode is mainly used for short-distance point-to-point 
communication. The communication distance shall be less than 15m. If SCU 
communicates with MC through RS232, just connect SCU RS232 port to the 
RS232 port of MC. 
2. Communication through MODEM or ES-MOD