VICI DBS PG Plus Rack 100 - Page 12

12
PG PLUS RACK + ZERO AIR
& GC PLUS RACK USER MANUAL
www.vicidbs.com
Version 2.00.0000
GAS LINE
PRESSURE CONTROLLER
NON RETURN VALVE NON RETURN VALVES
H
2
OUT
GENERATOR 1
H
2
OUT
GENERATOR 2
H
2
OUT
GENERATOR 3
CONFIGURATION
Cascading Mode: YES
N. Gen H2 in Cascading: 3
ID Number: 1
RS-485 Port 1 RS-485 Port 2
CONFIGURATION
Cascading Mode: YES
N. Gen H2 in Cascading: 3
ID Number: 2
RS-485 Port 1 RS-485 Port 2
CONFIGURATION
Cascading Mode: YES
N. Gen H2 in Cascading: 3
ID Number: 3
RS-485 Port 1 RS-485 Port 2
5.1.3. Cascading
This option requires the I/O board option.
The RS-485 interface allows up to 10 generators to be operated in parallel mode. The generators are
connected to an external non return valve to a gas line. The pressure must be controlled with an external
pressure regulator. The outlet pressure is xed to 10.3 bars. This mode allows up to 10 generators in a
cascading group.
How does cascading work?
The communication of the generators is done via the RS-485 Interface. For a correct communication each
generator needs a unique ID number. ID number must start from 1. Each generator must know how many
generators are connected in the cascading group. As soon as the generators are powered up, one generator
becomes the master, and controls the others (slaves). If there is a problem with the master, one of the slave
generators will become the master.
Every generator can be forced to be the master, in the menu you will nd the function “Force to Master,”just
select this function and acknowledge.
When a generator is the master, you can see the letter “M” in the menu button, while the slaves show the
letter “S”.
For part-numbers for the cascading option please consult the parts list above.
CAUTION: The cascading function will only work properly if the gas outlets of all the
generators are connected to the same gas line.