Integrated Voltage Detecting Systems - Siemens 8DJH Installation And Operating Instructions Manual

9.8.2 Integrated voltage detecting systems

500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
Tab. 51: Indication of voltage indicator
Indication
Flashes or lights up
Off
Function test
Defective voltage indicator
Using a defective voltage indicator can lead to incorrect indication of safe isolation from
supply. Touching live parts can lead to electric shock.
⇨ Before indicating the voltage, the function of the voltage indicator must be tested.
⇨ If the function test of the voltage indicator is not completed successfully, the device is
defective and must not be used for voltage indication.
The voltage indicator and the associated coupling section do not have a self-test function.
Therefore, a function test must be performed before indicating the voltage.
Perform the function test:
▪ At an energized HR or LRM interface
▪ On a voltage source with known voltage in the range of the pickup values according to
IEC 61243-5
▪ With an HR or LRM function test unit
1. Insert the voltage indicator in a test unit and read the indication.
Verification of safe isolation from supply
Defective voltage indicator
Touching live parts can lead to electric shock.
⇨ If the voltage indicator does not indicate any voltage, perform the function test again.
1. Remove the covers from the plug-in sockets (interfaces of phases L1, L2 and L3).
2. Insert the voltage indicator consecutively into the plug-in sockets of phase L1 and read the
indication.
3. Remove the voltage indicator.
4. Repeat the test for phases L2 and L3.
✓ If the voltage indicator does not flash or light up in any of the 3 phases, the phases are
not live.
5. Refit the covers on the plug-in sockets.
The following descriptions do not substitute reading the manufacturer documentation.
⇨ Before using the voltage detecting systems, read the supplied manufacturer
documentation.
⇨ Under unfavorable light conditions, shadow or additionally illuminate the display of the
voltage detecting systems.
Meaning for function test
Voltage indicator ready for service
Voltage indicator defective, do not
use
WARNING
WARNING
INFORMATION
INFORMATION
Operation | 9
Meaning for voltage detection
Phase not isolated from supply
Phase isolated from supply
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