2. Overview of the system
2.1 Overview
2.1.1 Operating the PPM 300 controllers
The PPM 300 controllers ensure that the power required is available and that the system is protected for typical marine
applications.
Only qualified people may install and commission the controllers. After the controllers are installed and commissioned, they
are easy to operate.
Power management system (PMS) control
As far as possible, the controllers should all normally run under PMS control.
As far as possible, the GENSET controllers should all normally run in automatic mode (AUTO). In this mode, the PMS
automatically starts and stops gensets, according to the power requirements. The PMS also automatically closes and opens
the genset breakers to the busbar, to connect and disconnect the gensets as needed.
The SHAFT generator, SHORE connection and BUS TIE breaker controllers normally run under PMS control. For safety
reasons, these controllers will not normally automatically connect to a shaft generator or shore connection, or automatically
close a bus tie breaker. An operator action is needed to start these actions. Once the operator starts the action, the controller
automatically follows a pre-programmed sequence of actions.
The GENSET and EMERGENCY genset controllers can run in either AUTO or a semi-automatic (SEMI) mode. These are
both PMS modes. SEMI mode is a type of service mode. In SEMI mode, an operator action is needed to start or stop the
genset. An operator action is also needed to start the pre-programmed sequence to close or open the genset breaker to the
busbar.
Switchboard control
Each controller can also be put under switchboard control. The operator then manually controls the genset speeds and opens
and closes breakers. Switchboard control is useful for troubleshooting. It can also be useful in extreme circumstances if the
operator needs to override the control system. Under switchboard control, all the controller functions are disabled. However,
the controller protections are still active. The controller monitors the operation, and if an alarm condition arises, the controller
activates the alarm action.
Push-buttons and LEDs
The operator can use the display unit push-buttons to operate the system. This includes changing modes, selecting actions
to start pre-programmed sequences, changing genset priority, and silencing alarms. The push-buttons to start or stop the
genset, or close or open the breaker(s), are only active in SEMI mode.
The operator can look at the display unit LEDs to see the status of each part of the system.
Display unit screen *
The operator can monitor system operation on the display unit screen. The operator can also use the soft key buttons and
the display unit screen to log into the controller. The operator can then see the alarm lists and logs, and acknowledge and
unlatch alarms. The operator can also see or change the controller configuration.
PICUS *
PICUS - Power In Control Utility Software
PPM 300 Operator's manual 4189340910 UK
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