APC PMG2X-A Manual download pdf (Page 15)

Installation and Operation Manual 15

Operation

LED Status Indicators LEDs are located on the front of the HWA SPD device. They operate as

follows:

• Verify that all phase voltages are present. If none of the LEDs are

illuminated, the device may not be installed correctly. Check the power

supply and service voltage. Upon energizing the SPD, check the LED

status.

• If all of the LEDs are illuminated, surge suppression is operating.

• If one or more LEDs are not illuminated, there is a loss of surge

suppression on that phase.

• If an inoperative condition occurs the device must be replaced by

qualified electrical personnel.

Audible Alarm The audible alarm does not have a silence switch. Silence the alarm by

removing power from the SPD (open the circuit breaker that it is connected to).

The alarm indicates that the device needs replacement by qualified electrical

personnel.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe

electrical work practices. See NFPA 70E.

• This equipment must only be installed and serviced by qualified

electrical personnel.

• Turn off all power supplying this equipment before working on or inside

equipment.

• Always use a properly rated voltage sensing device to confirm power is off.

• Replace all devices, doors and covers before turning on power to this

equipment.

• This equipment must be effectively grounded per all applicable codes.

Use an equipment-grounding conductor to connect this equipment to

the power system ground.

Failure to follow these instructions will result in death or serious injury.

Figure 6: Diagnostic Operation

8222-0012-07

LED ON = OK

LED OFF = Loss of surge suppression on that phase

and/or Audible Alarm ON = Loss of surge suppression

Operation

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APC PMG2X-A Manual Page 15