16
CURRENT TECHNOLOGY
®
PX3
TM
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
tnbpowersolutions.com/current_technology
Table 4: LED and Display Alarm Status Conditions
DRC1
DRC2
• Rated 250V 2A DC, 250V 5A AC, 14-22 AWG
DRC1
DRC2
• Rated 250V 2A DC, 250V 5A AC, 14-22 AWG
Connecting Form “C”
Dry Contacts
Dry Contacts:
All PX3 models have a dual set of Form “C” dry contacts
available for connection to user-provided remote alarm and monitoring circuits .
The installer must provide the appropriate raceway and wiring for this circuit
observing the restrictions on conduit openings illustrated in an earlier section
of this manual . The installer must route the monitoring conductors to the blue
terminal blocks on the door-mounted circuit board . Choose the appropriate
materials and routing to allow the door to open and close without pinching or
stressing wires .
Figure 14 shows the Form “C” contact configuration . The annotations on the
diagram match the markings on the blue terminal block .
Figure 14
Notes:
* 1 Highest priority takes precedence: I .e . if phase is lost, LED is Off, no blinking even if filter loss . Alarm Condition means the Audible Alarm is ON, Dry Relay Contacts is OFF
(de-energized), and System Alarm LED is ON .
2 % Protection levels of 40% and 75% are default settings which can be changed by the user (M3 System only) . If the Surge Module or Current Rating settings are changed,
the Protection levels will change automatically .
** 3 Subsequent Status message will be displayed on M3 Character and Graphics Displays, where “x” is corresponding Phase (A, B, C or L1, L2) . The Highest Priority condition
will over-write earlier conditions . Messages may be truncated to fit screen area (with T&B acceptance) .
4 Red System Status LED will remain on after Status has returned to normal . User must clear the status by pressing the M3 Cancel button .
5 Alarm Conditions will also be logged in the Events Log .
Condition
Corresponding Phase LED
Alarm
Cond
M3 Status Message**
Priority *
Phase Loss (<80%)
LED Off
Y
Alarm: Phase x Loss
1A
Phase Low (80 to <90%)
LED Short Blink Green (
≈
25% duty)
Y
Alarm: Phase x Low
1B
Phase High (>110%)
LED Long Blink Green (
≈
75% duty)
Y
Alarm: Phase x High
1C
N-G OverVoltage
N/A
Y
Alarm: N-G Voltage High
2
Frequency Out of Range
N/A
Y
Alarm: Frequency
Out of Range
3
% Protection < XX%
LED On Red
Y
Alarm: Protection x Low
4
Filter/Cap Loss
LED Blink Red once every 2 seconds
Y
Alarm: Protection Filter x Loss
5
% Protection XX to YY%
LED On Orange
N
Alarm: Protection x Reduced
6
