Mains (line) input, 24v (nominal) ac/dc supply, Thermocouple input – West Control Solutions N6600 User Manual
Page 79
1.3.1 Mains (Line) Input
The Controller will operate on 96 - 264V AC 50/60Hz mains (line) supply. The power
consumption is approximately 4 VA.
CAUTION:
This equipment is designed for installation in an enclosure which
provides adequate protection against electric shock. Local regulations
regarding electrical installation should be rigidly observed. Consideration
should be given to prevention of access to the power terminations by
unauthorised personnel. Power should be connected via a two-pole
isolating switch (preferably situated near the equipment) and a 1A fuse, as
If the 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 Controller mains (line) supply.
1.3.2 24V (Nominal) AC/DC Supply
The supply connections for the 24V AC/DC option of the Controller are as shown in
Figures 1-4 and 1-5. 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 Controller and the
thermocouple, ensuring that the correct polarity is observed throughout. Joints in
the cable should be avoided, if possible. The Controller’s CJC facility must be
enabled (normal conditions) for this input (see Subsection 3.3.13).
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.
S075-1
1-5
PM-0075