Document Contents
Operator's manual
• Controller equipment (push-buttons and LEDs)
• Operating the system
• Alarms and log
• Using the display unit
• Troubleshooting and maintenance
PICUS manual Using PICUS and CustomLogic
Modbus tables
• Modbus address list
◦ PLC addresses
◦ Corresponding controller functions
• Descriptions for function codes, function groups
1.2 Warnings and safety
1.2.1 Safety during installation and operation
Installing and operating the equipment may require work with dangerous currents and voltages. The installation must only be
carried out by authorised personnel who understand the risks involved in working with electrical equipment.
DANGER!
Hazardous live currents and voltages. Do not touch any terminals, especially the AC measurement inputs
and the relay terminals. Touching the terminals could lead to injury or death.
1.2.2 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.
1.2.3
Switchboard control
The controllers are designed to normally run under power management system control. When switchboard control is
activated:
• If an alarm situation arises, and the alarm action requires a trip and/or shutdown, then the controller trips the breaker and/or
shuts down the engine.
• 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.
PPM 300 Operator's manual 4189340910 UK
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