Installation RS20/22/30/32/40
Release
05
12/2015
51
2.5 Connecting the terminal block
2.5.1 RS20/RS30/RS40: supply voltage and
signal contact
The supply voltage and the signal contact are connected via a 6-pin terminal
block with a snap lock.
Supply voltage for RS20/RS30/RS40
The supply voltage can be connected redundantly. Both inputs are
uncoupled. There is no distributed load. With redundant supply, the power
supply unit with the higher output voltage supplies the device on its own.
The supply voltage is electrically isolated from the housing.
See “Insulation voltage” in section “Technical data” on page 64.
You can choose between DC or AC voltage when connecting the supply
voltage. You use the +24V and 0V pins to connect the AC voltage (see
figure 18).
Figure 18: Connecting the supply voltage at the 6-pin terminal block
1 – DC voltage, voltage range: 9.6 V DC to 60 V DC
2 – AC voltage, voltage range: 18 V AC to 30 V AC
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.
Observe the maximum values for the contact load of the signal contact.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.
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