Siemens TPS3 12, TPS3 15 user manual Operation, Shown with Surge Counter

Operation

Figure 8: Horizontal Display	Figure 9: Vertical Display
	(Shown with Surge Counter)
(Shown with Surge Counter)

Phase A, B & C: Green LED indicators—one per phase. Green is good. Extinguished green LED indicates loss of protection. Every suppression element in this SPD is monitored. N-G suppression element monitoring is logic-connected to Phase A.

Service LED (red): LED illuminates in the event of problems. This indicator is logic-connected to the Phase LEDs. Should a Phase LED go out the Service LED will illuminate and the Audible Alarm will sound.

Test: Tests red Service LED and Audible Alarm, and changes state of Dry Contacts.

Alarm Silence: turns Audible Alarm off. (Alarm is deactivated when the Silence LED is illuminated.)

Surge Counter Count: (if equipped) Increments optional surge counter by one (+1)

Surge Counter Reset: (if equipped) Resets optional surge counter to zero (0)

Diagnostic Display Panel

All indicators and controls are located on the diagnostic panel. The diagnostic panel is located on the front of the SPD enclosure or behind the door on certain optional enclosures. Each phase features a Green LED indicator. Green LEDs indicate correct operation.

If an inoperative condition were to occur, the built-in audible alarm

will sound and the red Service LED will illuminate. This indicates that the unit needs evaluation by a qualified electrician or technician. Until a qualified person evaluates the unit, press Alarm Silence to silence the alarm. (The LED above Alarm Silence illuminates when the alarm is deactivated. Normal operation occurs with the Alarm Silence LED extinguished.) The red Service LED will remain

illuminated even though the Audible Alarm has been silenced. Test tests the red Service LED, the Audible Alarm, and changes the state of Dry Contacts (if equipped).

If LEDs are illuminated in a manner that suggests contradictory information, there may be an internal logic problem and the unit needs replaced. If none of the LEDS are illuminated, the unit may not be installed correctly. For troubleshooting assistance, please contact Siemens TPS Tech Support at 888.333.3545.

Surge Counter Option

The surge counter registers the number of transient overvoltages on all L-N and L-G modes since the counter was last reset. The counter is inductively coupled from each mode of protection. It increments upon significant current change in a short time period (large di/dt).

The surge counter includes Test and Reset buttons on the touchpad display. Pressing Test adds one count. Pressing Reset clears the counter’s memory and sets the display to zero.

The counter includes an Eprom memory chip to store the surge count in the event of a power loss. The Eprom requires no maintenance giving it an advantage over replaceable batteries. The surge counter display will be blank if all power is lost to the SPD but will retain the last count shown on the display once power is returned.

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