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4.1.4 Group control and network operation
Group control.
With the
v-Log
controller you can network several compressors via the RS485 port. Up to 16
compressors can be connected to the network. The compressor with the network address «001» is
the «master», the other compressors are the «followers».
Set group control.
Select «ADJUST. PARAM.» In the main menu and go to the submenu «OPERATION MODE».
RUN: REMOTE/LOCAL
LOAD: AUTO/MANUAL
COM MODE: MODBUS
COM ADDRESS: 001
Go to the «SEQ PARAM SET» submenu in the «RUN PARAMETERS» menu.
GRP:MAST/FOLLOWER
GRP SWITCH: 0002H
GRP NUMBER
GRP LD: 5.2 BAR
GRP ULD: 8.0 BAR
GRP DELAY: 0020s
After configuring this data, restart the controller to perform the update.
Then you have to configure the controller that acts as a «FOLLOWER». Set here «COM MODE:
MODBUS» and the parameter «COM ADDRESS: 002» (002 for the 1.follower). Then select «RUN
PARAMETERS» then press «Enter» and then select «COM. STATUS" and press «Enter». Monitoring
network activity is shown in the following table.
RX : ------------------------
TX : ------------------------
4.2
Starting the compressor
26
Activate Remote
Automatic
MODBUS
001 for Master
Switching time Work order in the group
Number in the group
Loading pressure in the group
Loading pressure in the group
Switch-on delay for the next compressor in the group
Transmission / reception.
Before staring check oil level at sight glass on the Air-Oil separa-
tion tank.
Version 1.4
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