(Revised 2015-09-22)
15
102MC, 104TX, 105TX, 105FX, 106FX2 and
108TX
In the case of the 110FX2, 111FX3, 112FX4 and 114FX6, the Fault pins on the power connector can be used for
an alarm contact. The current carrying capacity is 1A at 24VDC. It is normally open and the relay closes when a
power fault condition occurs on one of the redundant power source inputs. These pins can be used to connect an
external warning device such as a light in order to provide an external alarm.
Recommended 24V DC Power Supplies, similar to:
100-240VAC: N-Tron NTPS-24-1.3, DC 24V/1.3
• 105TX-SL
(Top View)
Unscrew & Remove the DC Voltage Input Plug from the top header. Install the DC Power Cables into the Plug
(observing polarity on unit). Plug the Voltage Input Plug back into the top header. Tightening torque for the terminal
block power plug is
0.5 Nm/0.368 Pound Foot
.
All LEDs will flash ON Momentarily. Verify the Power LED stays ON (GREEN).
Note:
Either V
1
or V
2
can be connected to power for minimal
operation. For redundant power operation, V
1
and V
2
plugs must be
connected to separate DC Voltage sources. Use wire sizes of 12-28
gauge. The power cord should be limited to less than 10 meters in
order to ensure optimum performance.
Recommended 24V DC Power Supplies, similar to:
100-240VAC: N-Tron NTPS-24-1.3, DC 24V/1.3A
N-TRON SWITCH GROUNDING TECHNIQUES
FOR 100 SERIES
The grounding philosophy of any control system is an integral
part of the design. N-Tron switches are designed to be
grounded, but the user has been given the flexibility to float the
switch when required. The best noise immunity and emissions
(i.e. CE) are obtained when the N-Tron switch chassis is
connected to earth ground via a drain wire. Some N-Tron
switches have metal din-rail brackets that can ground the switch