1.2.6 Controller power supply
The controller must have a reliable power supply, which must include a backup power supply. In addition, the switchboard design
must ensure that the system is sufficiently protected if the controller power supply fails.
If the controller has no power supply, it is OFF and does not provide any protection. The controller cannot enforce any trips,
shutdowns or latches when it is off. The controller does not provide any control or power management. All the controller relays de-
energise.
1.2.7 Connect the controller protective earth
You must ground the controller rack to create a protective earth.
DANGER!
Failure to ground the controller rack could lead to injury or death.
1.2.8 Switchboard control
Under Switchboard control, the operator controls and operates the equipment from the switchboard. When Switchboard control is
activated:
• The controller trips the breaker and/or shuts down the engine, if an alarm situation arises that requires a trip and/or shutdown.
• The controller does not respond to a blackout.
• The controller does not provide any power management.
• The controller does not accept operator commands.
• The controller cannot and does not prevent any manual operator actions.
The switchboard design must therefore ensure that the system is sufficiently protected when the controller is under Switchboard
control.
1.2.9 Factory settings
The controller is delivered pre-programmed from the factory with a set of default settings. These settings are based on typical values
and may not be correct for your system. You must therefore check all parameters before using the controller.
1.2.10 Automatic and remote-controlled starts
The power management system automatically starts gensets when more power is needed. It can be difficult for an inexperienced
operator to predict which gensets will start. In addition, gensets can be started remotely (for example, by using an Ethernet
connection, or a digital input). To avoid personal injury, the genset design, the layout, and maintenance procedures must take this
into account.
1.2.11 Data security
To minimise the risk of data security breaches DEIF recommends:
• As far as possible, avoid exposing controllers and controller networks to public networks and the Internet.
• Use additional security layers like a VPN for remote access, and install firewall mechanisms.
• Restrict access to authorised persons.
1.2.12 Do not use unsupported hardware modules
CAUTION
Only use the hardware modules that are listed in the controller data sheet. Unsupported hardware modules can make the
controller malfunction.
INSTALLATION INSTRUCTIONS 4189340909I UK Page 10 of 144
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