DL7, DL7L
22
6.1 Power supply connection (module M)
Fig. 6.2 Power wiring diagram.
The device requires 24 VDC power supply at minimum 12 W. If supplied from
230 / 110 VAC, it is recommended to use high efficiency industrial switching power supply
at minimum 15 W of delivered power.
To ensure safety, the recorder's supply must satisfy the conditions
applicable to lower voltage sources SELV (Safety Extra Low-Voltage),
supplied with the 24 VDC as per the IEC60950-1.
In order to eliminate interference, it is recommended to connect the ground wire to the
terminal block (terminal no. 7). It is so called functional ground. This connection is not
required due to safety requirements.
In the case of the DL7L device it is possible to use the power supply unit (supplied as
an optional accessory).
If the PSBATT module is installed, it is forbidden to connect the power supply to the M
module
Power consumption depends on the quantity and type of input and output modules. It
should be taken into account that the maximum permissible ambient temperature depends
on device configuration, details are described in section
6.2 I/O modules
– wiring diagrams (slot A, .., G)
Detailed
information
concerning
individual
modules
is
given
in
section
6.2.1 IN6I(24V)
– six channel 0-20mA or 4-20mA input type module
Fig. 6.3 IN6I(24V) module output transducer wiring diagram.
