B&K 200.7 S2 Instruções de Operação descarregar pdf (Página 12)

System Components OI: BK MIKRO 7

Page 8 of 32 Rev. 2.01 dated 05.02.2007

Relay outputs

The terminals have been designed as dry relay contacts. By switch selection, they may be

configured as either normally open or normally closed.

The contacts have been designed for 250 VAC and, by additional internal circuits, protected

against inductive switch-off peaks of up to 19 W (2 ms).

 "K.O." relay terminals

These two terminals are used to indicate a fault message (K.O.).

 "O.K." relay terminals

These two terminals are used to indicate a no fault message, i.e. a good cycle (O.K.).

Note:

Relay as normally closed contact: active = open

inactive = closed

Relay as normally open contact: active = closed

inactive = open

When there is no power to the unit, the contacts always will be open.

Even when using relay as normally closed, they are open (like the active status)

when the power supply is not connected.

2.1.4 Light-emitting diodes

Three light-emitting diodes (LEDs) on the front panel provide information about the current status

of the BK MIKRO 7 monitoring system:

 Power supply / Status

Yellow LED to indicate supply voltage and status

 "K.O." relay

Red LED to indicate fault message

 "O.K." relay

Green LED to indicate no fault message

 Error messages

Flashing red and green LED to indicate illegal switch settings and incorrect selection inputs

Fig. 2-3: Control unit – Light-emitting diodes

L1 N

AC IN

k.o. o.k.

LED

yellow

LED

red

LED

green

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B&K 200.7 S2 Instruções de Operação Página 12