Baker Hughes Panametrics MTS6, User Manual

Page: 29 / 106

Moisture Target Series 6 User’s Manual 21
Chapter 2. Installation
2.6.4.2 Connecting the Fault Alarm
If enabled, the fault alarm trips when one or more of the following faults occurs:
•
power failure
• range error (configurable)
• watchdog function system reset
Note: The watchdog function is a supervisory circuit that automatically resets the unit whenever a system error
occurs.
The fault alarm may operate in fail-safe mode and uses pins 2 and 3 to provide a “normally closed” contact. When
the
MTS6
is operating in a non-fault state, the fault alarm relay is energized to open the contact between pins 2 and 3.
When a fault occurs, the fault alarm relay is de-energized to close the contact between pins 2 and 3.
Note: The contact between pins 1 (normally open) and 2 works in the opposite way. The alarm is energized to
close the contact during ordinary operation and the alarm is de-energized to open the contact when there
is a fault.
IMPORTANT: Ensure that the power is off before proceeding.
To wire the fault alarm, make connections to the upper terminal block on the back of the
MTS6
, as shown in Figure 25
and Figure 26 on page 14.
IMPORTANT: To maintain good contact at each terminal block and to avoid damaging the pins on the connector, pull
the connector straight off (not at an angle), make cable connections while the connector is away from
the unit, and push the connector straight on (not at an angle) when the wiring is complete.
2.6.5 Installing the AC Power Cable
To install the AC power cable, included with the
MTS6
, simply plug the female connector end of the cable into the
male connector on the rear panel of the
MTS6
(see Figure 25 on page 14, Figure 38 and Figure 39).
Figure 38: Inserting the AC Power Cable