ERICO TDX Modular - Manual

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