Wiring/Miscellaneous For TLS-IB Consoles W/RS-232 & With & W/O IFSF)
Connecting Power Wiring to TLS-IB
4-6
Connecting Power Wiring to TLS-IB
1.
Pull four wires between the power panel and the TLS-IB; three #14 AWG or larger diameter color-coded
wires for AC line (L), AC neutral (N) and chassis ground; and one #12 AWG (4 mm
2
cross-sectional area)
green and yellow wire for barrier ground.
For international applications, console power should come from a dedicated circuit via a fused, switched, neon
indication spur within one metre of the console position. From an independent 24 hour supply at the distribu-
tion panel, run three 2.5 mm
2
(minimum) standard colour coded wires, live, neutral and earth, to the fused
spur. Run three similar wires from the spur to the console location. Run one 4mm
2
wire, colour coded green/
yellow, from the earth bus bar at the distribution panel direct to the console location. Leave at least 1 metre of
free cable for connection to the console.
Use an ohmmeter to check the electrical resistance between the console’s metal case and
the earthing ground wire’s connection at the “known good earth ground” (copper rod driven
into ground, etc.). It should read less than 1 ohm.
2.
Open the door of the TLS-IB and connect the four power/ground wires as shown in [Figure 4-4]. Do not
connect the power wires to breaker panel at this time.
WARNING
The TLS-IB contains voltages which can be lethal. It is connected to devices
that must be intrinsically safe.
FAILURE TO COMPLY WITH THE FOLLOWING WARNINGS AND SAFETY
PRECAUTIONS COULD CAUSE DAMAGE TO PROPERTY, ENVIRONMENT,
RESULTING IN SERIOUS INJURY OR DEATH.
1. Turn power Off at the circuit breaker connecting the power supply wires.
2. Attach conduit from the power panel to the TLS-IB Power Area
knockouts only (1 on top and 2 on bottom, ref. Figure 2-3 on page 2-6).
OFF
OFF
NOTICE
