11
2.5 Alarm
Connections
Eight alarms are included as a standard feature of the TPSD. The included alarms are Low DC Current, Low DC
Voltage, High DC Voltage, High Voltage Shutdown, AC Failure, Negative Ground Detection, Positive Ground
Detection and Summary. Each alarm includes two form “C” contacts enabling the customer to connect multiple
remote annunciators.
Max. Operating Voltage
125 VAC
125 VDC
Max. Operating Current
2 A
Max. Switching Capacity
62.5 VA
30 W
2.5.1 Alarm Connection Procedure
Before making any connections to the TPSD ensure that the AC Power is off at the main breaker box and that
both of the unit’s breakers are off. Verify that no voltage is present by using a voltmeter at all input and output
terminals.
For High DCV, High DCV Shutdown, Positive Ground, and Negative Ground:
If it is desired that the annunciator be active until the alarm triggers connect the annunciator leads to the
Normally Closed and Common contacts of the desired alarm (located on the Customer Alarm Connection
Card
S2A-198A). If it is desired that the annunciator be activated after the alarm triggers connect the
annunciator leads to the Normally Open and Common contacts of the desired alarm.
For Low DCV, AC Power Failure, Low DCA, and Summary:
If it is desired that the annunciator be active until the alarm triggers connect the annunciator leads to the
Normally Open and Common contacts of the desired alarm (located on the Customer Alarm Connection Card
S2A-198A). If it is desired that the annunciator be activated after the alarm triggers connect the annunciator
leads to the Normally Closed and Common contacts of the desired alarm.
Table 8 – Alarm Form “C” Contact Ratings
Figure 9 - Customer Alarm Connection Card
