Control module STM 20 RED/DUO
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B6_Control_SYS20_EN_V1.3.doc
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3.
Control module STM 20 RED/DUO
3.1.
Controlling elements on STM 20 RED/DUO
Control module STM 20 RED/DUO works with an active HIGH level. That means that a minimum
of +24V is required to activate a function. Protective inputs are activated in case of interruption.
OV is connected to the ground. This connection can be interrupted for test reasons by use of the
ground screw, located next to terminal 12. LED 1 (red) comes on.
Control module and power supply
ELEKTRIC SHOCK
Electric shock, combustion, death when touching the power supply without
protection cover
Before opening the metallic cover of the power supply unit, disconnect it
from the mains
The installation may only be connected to the mains again,
after
the protec-
tion cover has been closed again.
3.2. Applications
Control module STM 20 RED/DUO is – according to the software implemented and the appropri-
ate authorization – used for the installations below.
Control module
STM 20 RED/DUO
Fused power
supply
DANGER
