Alpha Technologies APX Series Manual del operador descargar pdf (Pagina 37)

2. INSTALLATION

2.11 Options,

continued

2.11.4 TDR-M (Plug-in Time Delay Relay) and ACAT-3P (AMP Clamp)

Photos 2.11.4.a; b

The TDR-M briefly delays power to the output during utility start-ups (after an outage

has occurred). The delay time can be varied between 10 and 60 seconds by using

an easily accessible potentiometer. The ACAT-3P clamps dangerous spikes and

surges to ground protecting sensitive electronic equipment. These options are not

available for the APL.

CAUTION: BEFORE PROCEEDING, ENSURE THAT THE UTILITY POWER HAS

BEEN DISCONNECTED!

Procedure: TDR-M

1. Remove the single SEMS screw from the text side of the TDR-M

(if installed).

2. Place the tab on the TDR-M into the upper slot (adjacent to the capacitor).

3. Slide the TDR-M towards the left hand side until it is flush with the left

flange on the APC. The slot in the flange should lineup with the screw-hole

in the TDR-M.

4. Replace the screw into the screw-hole and tighten.

5. Disconnect the shorting plug from the 3-pin connector. Save the shorting

plug in a safe location, in case it needs to be reinstalled (e.g., If the TDR-M

is removed). Plug the 3-pin connector into its mating connector on the

TDR-M.

6. Connect a true reading RMS digital multimeter to the output of the APC.

Apply power to the APC and adjust the potentiometer for the desired output

delay time using the digital multimeter.

Procedure: ACAT-3P

The ACAT-3P mounts in the same manner as the TDR-M, but in the lower slot and

connects to the 2-pin connector.

Photo 2.11.4.b

TDR-M and ACAT-3P Options Installed in the APC

3-pin connector

SEMS mounting screw

TDR-M mounted in

UPPER slot

SEMS mounting screw

Increases Delay

Decreases Delay

Time delay adjustment

potentiometer

ACAT-3P mounted in

LOWER slot

2-pin connector

3-pin connector

with shorting wire

Photo 2.11.4.a

TDR-M Option

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 47 48

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Alpha Technologies APX Series Manual del operador Pagina 37

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