Table of Contents
Advertisement
Installing and connecting the device
3.4 Connecting the device
Procedure
1. Switch off the external 24 V DC power supply.
2. Connect the 24 V DC power supply connector
Note
Reverse-polarity protection
The DC power supply (24V) has a mechanism to protect against reverse polarity. In the
event that the 24 V DC lines are reversed (24 V DC nominal (-20% / +20%)) and connected
to ground, the device will not be damaged. The device will simply fail to turn on. After the
power supply has been connected correctly, the device will again be ready to operate.
3.4.3.3
Connecting an AC power supply
Note before connecting
NOTICE
Damage to the device in ungrounded supply systems
The device features a safety-certified power cable. Connect the device only to a grounding
socket. Operate the device only on grounded-neutral systems and not on impedance-
grounded systems such as IT networks.
NOTICE
Damage to the device due to connection to the wrong supply voltage
If the local supply voltage is incompatible with the permissible rated voltage for the device,
damage to the equipment may result.
Always make sure that the local supply voltage complies with the permissible rated voltage
for the device.
62
to the device.
Observe the correct polarity of the contacts:
①
DC 24 V
②
ground
③
protective conductor
IFP, IFP PRO, IFP ETH
Operating Instructions, 09/2019, A5E31298376-AJ
Advertisement
Table of Contents
