Service ManualService Manual
Operating Lights marLEDOperating Lights marLED
®®
E9 / E9i / E15E9 / E9i / E15
V V 1.0 1.0 2323
4.5.44.5.4
Function of the integrated ZSV switch (optional)Function of the integrated ZSV switch (optional)
If a mains voltage of > 85 VAC is available and the power supply unit has reached its outputIf a mains voltage of > 85 VAC is available and the power supply unit has reached its output
voltage (28–36 VDC), bipolar switching (+ and -) is used from the battery to the power supplyvoltage (28–36 VDC), bipolar switching (+ and -) is used from the battery to the power supply
output.output.
If the power supply unit is turned off or if the input or output voltage of the power supply unitIf the power supply unit is turned off or if the input or output voltage of the power supply unit
drop below the operating limits, the load is supplied via the battery (X2).drop below the operating limits, the load is supplied via the battery (X2).
Activation of mains voltage > 85 VAC is also indicated by an internal, green “AC OK” LED onActivation of mains voltage > 85 VAC is also indicated by an internal, green “AC OK” LED on
the top of the power supply unit.the top of the power supply unit.
The supplied, 2-coloured LED can be connected as a status indicator to the connection X5The supplied, 2-coloured LED can be connected as a status indicator to the connection X5
(“LED AC/DC”).(“LED AC/DC”).
4.5.54.5.5
Voltage adjustmentVoltage adjustment
As a factory default, the pre-set voltage is indicated on the label (5). Adjust output voltageAs a factory default, the pre-set voltage is indicated on the label (5). Adjust output voltage
(28–36 VDC) on the potentiometer (6) using a non-conducting screw driver. The most(28–36 VDC) on the potentiometer (6) using a non-conducting screw driver. The most
important factor for the proper functioning of the lights is the correct voltage on the contactimportant factor for the proper functioning of the lights is the correct voltage on the contact
block (see section 9 “Technical Data marLED® E9 / E9i / E15”, page 69).block (see section 9 “Technical Data marLED® E9 / E9i / E15”, page 69).