Installation MRD TNM4000
Release 02 12/2020
Industrial Switch >TNM4000
19
2.1.3
Connecting the power unit connections for supply
voltage and alarm relay contact
Connecting the voltage supply terminals
WARNING
ELECTRIC SHOCK
Only connect a supply voltage as described in the data plate of your device. Never
insert sharp objects (small screwdrivers, wires, etc.) into the connection terminals
for the supply voltage, and do not touch the terminals!
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
Note:
Relevant for North America:
The torque for tightening the supply voltage terminal block on the device is 4.5 lb
in (0.51 Nm).
Figure 5: Power supply unit , dual DC voltage Connection
1 - supply voltage
2 - relay contact
Connection
Description
＋
, pin 1
Plus terminal of the supply voltage
－
, pin 2
Minus terminal of the supply voltage
, pin 3
Protective conductor
－
, pin 4
Minus terminal of the supply voltage
＋
, pin 5
Plus terminal of the supply voltage
Table 3: Pin assignment of terminal block for voltage supply
For
every
supply voltage to be connected, perform the following steps:
Ensure the required conditions for connecting the supply voltage are
observed (see page 4 “Supply voltage”).
