1 ~ types can be used in IT-System in standard version. These may only be used in
3 ~ IT-Systems if no higher voltage to the
“
PE
”
can occur than the speci
fi
ed mains
voltage of the device even in case of a fault to earth of a mains phase which is not used
by the device (of none of the two power supplies).
In order to ensure a trouble free operation in IT-System the
“
GND
”
potential of the control
ports have to be connected with the protective earth potential.
As a consequence of these connection must be considered for the control ports (excep-
tion
fl
oating relay contacts):
1. Connection only with wires, suitable for mains voltage and surrounding area.
2. Connection with suitable isolated ampli
fi
ers only.
5.6 Systems with residual current protective devices
Whether the use of a residual current protective device (RCD) is necessary or allowed
depends on the design of the low-voltage system on which the device is to be operated.
The assessment whether or which residual current protective device should be used is
the responsibility of the system operator or electrician commissioned by it.
Danger due to electric current
When selecting the tripping characteristics of the residual current protective device, the
possible residual current form of the power electronics (system with semiconductors)
must be observed in conjunction with the standards and regulations applicable at the
place of use.
Design of the power electronics
•
The design of the power electronics corresponds to a frequency inverter with two-
pulse bridge circuit and PFC (power factor correction).
Information
To prevent false tripping due to pulse-like charging currents of the integrated EMC
fi
lter,
we recommend a rated di
ff
erential current of 300 mA for reasons of operational reliability
in the case of
fi
xed connection and use of a residual current protective device.
5.7 Motor protection
Integrated overload protection, preceding motor protection device unnecessary (max.
line fuse see Technical data).
5.8 Voltage supply
“
10 V DC
”
Voltage supply (PELV current source pursuant to DIN EN 60204-1) for external compo-
nents, e.g. for ECblue connection box.
Connection:
“
10 V
”
-
“
GND
”
(max. load see Technical data und connection diagram).
During an overload or short-circuit (10 V - GND), the control voltage (and thus the device)
is disconnected . Automatic start after elimination of the cause of error.
It is not permissible to connect outputs of several devices to each other!
Assembly instructions
ECblue
Electrical installation
L-BAL-F056-GB 2022/45 Index 005
Part.-No. 00700562-GB
23/44
