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WARNING
Risk of injury due to high currents and high
electrical voltages!
Severe bodily injury or death can result from:
·Touching bare or stripped leads that are
energized.
·Dangerous live current measurement inputs of
the device and at the current transformers.
Therefore, please note for your system:
· Disconnect the supply of power before
starting work!
· Secure it against being switched on!
· Check to be sure it is de-energized!
· Ground and short circuit! Use the ground
connection points with the ground symbol for
grounding!
· Cover or block off adjacent live parts!
WARNING
Risk of injury due to electrical voltage at current
transformers!
Current transformers which are operated exposed
on the secondary side can carry hazardous live
high voltage peaks which can lead to serious bodily
injury or death.
Therefore please abide by the following:
·
Switch off your installation before
commencing work! Secure it against being
switched on! Check to be sure it is de-
energized! Ground and short circuit! Cover or
block off adjacent live parts!
·
Avoid exposed operation of the current
transformers.
·
Short-circuit unloaded current transformers.
·
Before interrupting the current supply, short
circuit the secondary connections of the
current transformers.
·
If there is a test switch which automatically
short-circuits the secondary current
transformer lines, it is sufficient to set it to
the "Test" position, provided that the short-
circuiters have been checked beforehand.
·
Only use current transformers with basic
insulation according to IEC 61010-1:2010.
·
Fix the attached screw terminal to the device
with the two screws.
·
Even current transformers rated as safe for
exposed operation are dangerous to touch if
they are operated exposed.
WARNING
Risk of injury or damage to the device due to
electrical voltage and improper connection!
High measuring currents can cause temperatures
of up to 80 °C (176 °F) at the connections.
Use wiring designed for an operating
temperature of up to 80 °C (176 °F)!
Fig. Connection example for "current measurement".
L1
N
PE
L3
L2
Load
S1 S2
S1 S2
S1 S2
S1 S2
7.5 Current measurement
The device:
·Measures current exclusively via current
transformers.
·Permits the connection of current transformers
with a transformer ratio of ../1 A and../5 A for
current measurement inputs I1 to I8.
·Has a current transformer ratio of 5/5A (I1 to I8)
as the default setting.
·Allows mA current measurement via the
multifunction channels (terminals 7 to 14) only
with suitable current transformers.
The current transformers require a basic insulation
according to IEC 61010-1:2010 for the nominal
voltage of the circuit.
ATTENTION
Material damage due to disregard of the
connection instructions during current
measurement.
Failure to comply with the connection requirements
of your device can result in the permissible current
measurement range being exceeded. This can lead
to damage or destruction of your device or your
system and thus to material damage!
· Use current transformers for current
measurement! The device only allows current
measurement via current transformers!
· Observe the connection conditions for the
current measurement inputs of your device
and the current transformers!