The Eekels alarm system EAS /05 is for the centralized presentation and supervision of alarms in marine installations. It combines a standard modular approach with simple installation and ergonomics.
The Eekels alarm system EAS /05 replaces the 4th generation alarm system, which was based on printed circuit boards and conventional electronics. The new system is built with standard well-proven components and modules like the Siemens S7-300 Programmable Logic Controller. The system is extendable to a large alarm system with up to 2000 digital and analog alarm inputs. The system includes standard functions for main drive and power checks including the display of key indicators such as cylinder temperature.
An Operator Panel is used for configuring alarm inputs and displaying status and raw values of analog inputs.
An alarm input has a few settings:
- Alarm delay time
- Alarm set point for analogue inputs
- Bridge group (1 -12)
- Inhibit group (1 -8 )
Several actuators can be connected to the alarm cabinet. The standard signal inputs are: - Digital in (normally closed contacts)
- Thermocouples (NiCrNi)
- Pt100 (3 and 4 wires)
- 4-20mA ;passive and active, including terminals for meter connection
- Other types are available on request
Characteristics of the alarm system: - Use of standard well-proven and certified industrial components
- Easy to modify or expand due to the modular concept
- All types of alarm indication and operator interfaces are possible including LED and Touch screen
- LED indication on all inputs is standard for easy diagnosis
- Use of separate terminal boards for different wiring systems, avoiding the use of extra terminals and junction boxes
- Separate electrical protection of each input and output
- Easy to commissioning and service
- Globally available, low cost spare parts
Standard configuration:- Based on the Siemens S7-300 programmable logic controller with back plane for standard input/output modules
- 32 digital inputs per digital input module including LED status indicators and labels
- Digital inputs with adjustable time delay
- 8 analog inputs per analog input module
- Analog inputs with adjustable limits (High-High, High, Low-Low, Low).
- Analog inputs for temperature measurements such as the temperature of the exhaust gas of the main engine
- Digital output modules including LED status indicators and labels
- Digital outs for Bridge, WTK etc
- Siemens TP270, touch panel for selection and display of alarm and exhaust temperatures
- Operator Panel for tuning and configuration (Siemens OP3, 2 lines/20 characters, 5mm height)
- Central control panel for bridge signaling
- 24 VDC and 230 VAC Power supplies
- Terminal modules for separate connection of every external signal
- VDR with 6 potential free contact
- Dead man system (DMS) / reset box