Open the controller cover
N O T I C E
Carefully open the controller cover without the use of force, or damage to the wires in the device can occur.
Open the controller cover to get access to the wiring connections. Refer to
Figure 4 Open the controller
Connect to power
The instrument can connect to an AC or a DC power source. Refer to
on page 11 or
When more than one input voltage is used at the same time, the instrument automatically selects the
power supply from the available input voltages, based on
. It is possible to set or select the
power supply when the instrument is on for operation without interruption. If two DC input voltages
are used, they must have approximately the same potential (± 5%).
Table 2 Power supply sequence
Sequence
Assignment
Plug, pins
1
AC voltage
CON1, pin 1 and 3
2
DC voltage VIN1
CON2, pin 1 and 2
3
DC voltage VIN2
CON2, pin 3 and 4
Wiring information
D A N G E R
Electrocution hazard. In order to maintain the NEMA/IP environmental ratings of the enclosure, use
only conduit fittings and cable glands rated for at least NEMA 4X/IP66 to route cables in to the
instrument.
To keep the environmental rating and for safety:
• Make electrical cable connections through the cable strain reliefs. To supply power with conduit,
replace a cable strain relief with a conduit hub. Seal the conduit with plumber's putty.
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