Mounting, removal, electrical installation, and replacement
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3.9 Replacing the RFC 4072S
1. Switch off the power supply to the RFC.
2. Unplug the supply cable from the RFC.
Figure 3-7 Removing the power supply
NOTE: The following tasks must be carried out prior to mounting:
– Disconnect the supply voltage
– Make sure that the supply voltage cannot be switched on again by unauthorized per-
sons
Only qualified personnel should pack and unpack the device while observing the ESD reg-
ulations in Section 1.7, “Electrical safety”.
Only replace the device with a device of the same hardware/firmware version or with a
compatible device approved by Phoenix Contact. Information on compatible devices can
be found on the Internet at phoenixcontact.com
.
WARNING: Unintentional machine startup
Do not replace the RFC 4072S while the power is connected.
Do not remove the device until:
– The device has been disconnected from the power supply and it is ensured that it can-
not be switched on again
–The COMBICON connector (supply voltage) has been removed
– The Ethernet cable connector/s has/have been removed
– The USB stick (if present) has been removed
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