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3 Brief Description
3 Brief Description
ETAMATIC OEM/ETAMATIC S OEM is a control system for combustion plants. Depending on
the reference variable, the ETAMATIC OEM adjusts up to 4 actuators according to freely pro-
grammable curves.
The ETAMATIC OEM hat 4 three point step output.
ETAMATIC S OEM has 3 three point step continuous output and a 0/4-20 mA output.
Examples for possible actuators:
– combustion air damper
– combustion air fan (only ETAMATIC OEM)
– fuel damper
– recirculation damper
Up to 20 points (standard 11) can be programmed for every channel. The display occurs be-
tween 0 and 999 relatively.
The ETAMATIC OEM has a 25 pin D-SUB-socket with a serial interface for remote control or
remote display via PC (windows Software seperately available). Connections for PROFIBUS-
DP, TCP/IP (MODBUS TCP), Interbus-S and Modbus RTUare optionally available. Other BUS
systems available on request. The connection to further plant components such as fault indi-
cator systems or O2 trim occurs by LAMTEC SYSTEM BUS interface on a 9 pin D-SUB-sock-
et.
The operation occurs through the optionally available PC software or operating unit. For dis-
play to end customers, connect to customer interface via LAMTEC SYSTEM BUS. The oper-
ation via PC software is written in a seperate manual.
The ETAMATIC OEM continuously monitors its own functions and those of the connected con-
trol elements.
230-V outputs:
– actuation of the gas valves
– actuation of the oil valves
– actuation of the oil pump/rotary atomiser
– actuation of the ignition valve and the ignition transformer
– fan release
– fault message
– OPEN/CLOSE control signals for the valve/damper motors
Floating contacts or chains of contacts transmit external signals to the ETAMATIC OEM.
The following signals can be preset:
– 3 separate safety interlock circuits
– gas < max
– air pressure monitor
– control release
– min. gas pressure monitor (for leakage test)
– flame signal
– re-circulation on
– burner on
– fuel selection
– oil pressure min / atomiser air pressure
– oil pressure max
– settings release
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