Qnergy PowerGen 5650 Series, Installation & Operation Manual, Page: 34 / 194

P
OWER
G
EN
I
NTERFACES
22
5. POWERGEN INTERFACES
Stand-alone PowerGen installation requires minimum effort to connect into customer site
infrastructure. There are only four points of interaction: incoming fuel supply, generator power
output, communication and control interface and, if required, heat transfer hydronic connection.
5.1 LOCAL USER INTERFACE (LUI)
Due to usual remote installation nature, the LUI for unmanned site was kept as minimal. There
are three lights indicating locally the most common unit states, one switch to change unit
control mode and one button for unit local control:
• Local/Remote Mode Switch – has two positions: Local and Remote. In Remote Mode
switch position the PowerGen unit can be only controlled through SCADA communication
interface. For local control such as unit start or stop the switch shall be switched to Local
Mode position.
• Start/Stop (Fault Reset) Push Button – allows to start the generator unit (if it was
previously stopped) or stop the unit (if it is running) only in Local Control Mode (Control
Mode Switch is Local Control position).
• System Run Light (Green) – can be in solid ON state if the generator unit is up and running.
If the green light is OFF the generator unit is not running and is not ready to start. The third
possible condition of the light is “blinking green”, which means that the unit is ready to
start and might be started locally or remotely (depends on position of the Control Mode
Switch). See “User Interface, System Run Light” on page 24 for more information.
• Warning Light (Amber) – signals the operator of possible PowerGen warnings. The
“blinking amber” means that a warning is present but no immediate operator attention is
required. Warnings will not disable the PowerGen but should be payed attention to since a
warning may lead into a fault condition if left ignored. See “User Interface, Warning Light”
on page 24 for more information.
• Fault Light (Red) – can be in “ blinking” state if the generator unit is faulty or requires
immediate operator intervention. See “User Interface, Fault Light” on page 25 for more
information.
5.2 COMMUNICATION AND CONTROL INTERFACE
The PowerGen integrates an on-board Modbus TCP/IP interface as well as set of discrete signals
in the form of dry contacts. Both Modbus and the discrete interfaces can be wired to customer
SCADA or with optional communication devices connect to customer control/monitoring system
through local Ethernet, cellular or satellite communication.
For a full list of available discrete inputs and outputs please See “FEB GPIO Configuration” on
page 94.