TT8900 OPT
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Installation and Service Manual
Page 35 of 41
5.4
Replacing the T20 SCM Module
Tools Required: Flat head screwdriver.
In the unfortunate event the T20 SCM module needs to be replaced, follow these steps to
complete the swap and resume normal operations:
1.
Open the TT8900 OPT door using the commissioned key.
2.
Power off the UPS battery then, disconnect the TT8900 OPT unit from the mains power.
3.
Remove the T20 SCM P1, P2 and P3 connector banks, using a flat head screwdriver.
4.
Using the same flat head screwdriver, pull out both orange tabs keeping the T20 SCM
module attached to the DIN rail.
5.
Pull out the T20 SCM module.
6.
Install the new T20 SCM module, undoing steps 4-1.
Important: Make sure to match the
Setup SW1
dip switches to the old module.
7.
Once the front door is closed, turn on the power and proceed to contact TT Fuel
customer support in order to re-configure the T20 SCM module.
+61 8 8215 5000
Figure 24: T20 SCM Module Replacement