36
Installation GRS1020/1120/1030/1130
Release
03
01/2017
2.4 Connecting the terminal blocks
Note: The supply voltage is connected to the device casing through
protective elements exclusively.
2.4.1 Supply voltage with the characteristic value C
You will find information on the characteristic values here:
“Device name and product code” on page 16
You have the option of supplying the supply voltage redundantly, without
load distribution.
Both supply voltage inputs are uncoupled.
Figure 5: Supply voltage with the characteristic value C: 2-pin terminal block with
screw locking
WARNING
ELECTRIC SHOCK
Connect only a supply voltage that corresponds to the type plate of your
device.
Never insert sharp objects (small screwdrivers, wires, etc.) into the
connection terminals for electric conductors, and do not touch the terminals.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.
Type of the voltages
that can be
connected
Specification of the supply
voltage
Connections
DC voltage Rated voltage range DC
24 V ... 48 V
Voltage range DC incl.
maximum tolerances
18 V ... 60 V
+ Plus terminal of the supply voltage
− Minus terminal of the supply voltage
Table 13: Supply voltage with the characteristic value C: type and specification of
the supply voltage, pin assignment on the device
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