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1.3.1 Mains (Line) Input
The Profile Controller will operate on 96 - 264V AC 50/60Hz mains (line) supply.
The power consumption is approximately 4 VA. Power should be connected via a
two-pole isolating switch (preferably situated near the equipment) and a 1A fuse.
If the Profile Controller has relay outputs in which the contacts are to carry mains
(line) voltage, it is recommended that the relay contact mains (line) supply should
be switched and fused in a similar manner but should be separate from the Profile
Controller mains (line) supply.
1.3.2 24V (Nominal) AC/DC Supply
The supply connections for the 24V AC/DC option of the Profile Controller are as
shown in Figure 1-4. Power should be connected via a two-pole isolating switch
and a 315mA slow-blow (anti-surge Type T) fuse.
With the 24V AC/DC supply option fitted, these terminals will accept the following
supply voltage ranges:
24V (nominal) AC 50/60Hz - 20 - 50V
24V (nominal) DC - 22 - 65V
1.3.3 Thermocouple Input
The correct type of thermocouple extension leadwire or compensating cable must
be used for the entire distance between the Profile Controller and the
thermocouple, ensuring that the correct polarity is observed throughout. Joints in
the cable should be avoided, if possible. The CJC facility must be enabled (normal
conditions) for this input (see Subsection 3.4).
NOTE: Do not run thermocouple cables adjacent to power-carrying
conductors. If the wiring is run in a conduit, use a separate conduit for the
thermocouple wiring. If the thermocouple is grounded, this must be done
at one point only. If the thermocouple extension lead is shielded, the shield
must be grounded at one point only.
1.3.4 RTD Inputs
The compensating lead should be connected to Terminal 4. For two-wire RTD
inputs, Terminals 4 and 5 should be linked. The extension leads should be of
copper and the resistance of the wires connecting the resistance element should
not exceed 5 ohms per lead (the leads should be of equal resistance).
1-4 Volume I S077-1