Erico TDX Modular User Manual download pdf

TDX Modular Diagnostic Sheet

DANGER: Electrical shock or burn hazard. Installation of this SPD should only be made by qualiﬁ ed personnel.

Failure to lockout electrical power during installation or maintenance can result in fatal electrocution or severe burns.

CAUTION: Check to make sure system voltages do not exceed the SPD voltage requirement and the correct SPD

voltage/model has been selected. This unit must be installed in accordance with the National Electrical Code

(ANSI/NFPA-70) and applicable local codes.

CAUTION: Ungrounded power systems are inherently unstable and can produce excessively high line-to-ground

voltages during certain fault conditions. During these fault conditions any electrical equipment, including an SPD, may

be subjected to voltages which exceed their designed ratings. This information is being provided to the user so that an

informed decision can be made before installing any electrical equipment on an ungrounded power system.

Alarm

Buzzer

Protection Status

Indicator Light

L1, L2, L3

Indicator Light

Remote

Contacts

Unit

Status

Action

Off On On Closed Unit

operational

Off Off Off Open Power not applied

to unit

Check power source

On Off Off Open Fuse blown or both

fuse blown and

module failed

Test fuses, visually

inspect modules /

replace if required

On Off On Open Module failed Replace failed

module(s)

• All indicator lights are red

• The L1, L2, L3 indicator lights (L1,L2 on split phase) monitor the TDXFUSE status to the unit when power is applied. If power is applied and this light

is OFF, it is an indication that the TDXFUSE on that phase has blown open circuit.

Operational Chart

Servicing your TDX unit - Testing fuses

Tools / Parts you may need:

Remove plate at the base of the TDX unit. Remove fuse cover on the bottom tray using a #1 Phillips head screw driver (recommended.)

Fuses should be tested using a multimeter as above. If a fuse(s) has blown, the replacement part number is TDXFUSE.

• Replacement Module(s) and Replacement Fuse(s)

• 3/16” Flat head screw driver

• 5/16” Flat head screw driver

• #1 Phillips head screw driver

1 2

TDX Modular Diagnostic Sheet 1

Summary of Contents

Page 1 - TDX Modular Diagnostic Sheet

TDX Modular Diagnostic SheetDANGER: Electrical shock or burn hazard. Installation of this SPD should only be made by qualiﬁ ed personnel. Failure t

Page 2

DANGERELECTRICAL SHOCK OR BURN HAZARD. HAZARDOUS VOLTAGES EXIST INTERNAL TO THE TDX. THIS UNIT SHOULD BE INSTALLED AND SERVICED ONLY BY QUALIFIED PERS

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Erico TDX Modular User Manual

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