Set As Slave; Start, Stop Sequence Control; Sequence Communication Receiving And Sending Message - SCC MAM – 890 Operation Manual

9.2.2 Set as Slave

When MAM controller serves as slave, it is only necessary to set COM MODE as SEQ. Set COM ADD from 2 –
16 with sequence according to the quantity of compressors, and SEQ STATE as SLAVE.

9.4 Start, Stop Sequence Control:

Make sure sequence cables connect correctly and the parameter of compressors in net set correctly.
Activate master, master controls the compressors in Net automatically according to the air pressure
detected. Sequence control stops at the same time when manually stop the master. So master will no longer
send command to compressor in net.

9.5 Sequence Communication Receiving and Sending Message:

The message received and sent by RS485 can be displayed by the corresponding indication screen which is
convenient for customer to make sure if they have received and feedback data in SEQ MODE or COM MODE.
The method to switch to communication menu is as below:
Press or
communication menu. Press
When controller receives data, RX "—" and "*" display alternately. When sends data, TX "—" and "*" display
alternately. When controller is in SEQ mode or communicates with monitoring center, user can confirm the
establishment of communication through this menu.
04.08.2017
AIR T: 78°C
AIR P： 0.53MPa
NORMAL STOP 0S
C16
in main menu and select "RUN PARAMETER" and move down the cursor to
to switch to the menu below:
RX: ----
TX: ----
Operation Manual MAM - 890 V1.0
◊
REMOTE
◊:
Blinking icon indicate
master has active seq
mode function
-
23 -