Power supply check | Toshiba 6F3B0250, PROSEC T1 T1S specification

10.1.1Power supply check

If the PWR (power) LED is not lit after power on, check the following points.

Check the power connection

Correct

Check the power voltage at the T1/T1S’s terminal

Normal

Remove the programmer

port connector

Still unlit

Remove the 24 Vdc service power terminals if it is used

Still unlit

Remove the option cards and

the expansion cable

Lit

Confirm the internal 5 Vdc

current consumption if

option card, expansion rack or expansion unit is used

Within the limit

Insert the removed option cards one by one to pinpoint the faulty card

Normal

Connect the expansion rack or unit again. For expansion rack, insert the I/O modules one by one to pinpoint the faulty module

Connection terminals are correct. The terminal screws are not loose. The terminal block is installed securely.

85 to 132/170 to 264 Vac (50/60 Hz) or 20.4 to 28.8 Vdc (DC power)

If the PWR LED becomes normal, the internal 5 Vdc can be shorted in the external connections of this port.

If the PWR LED becomes normal, the 24 Vdc service power can be over load.

If the PWR LED is still unlit, the T1/T1S basic unit may be faulty. Replace the unit.

The 5 Vdc capacity for option cards and expansion rack/unit is 1 A.

(If the HP911A is connected, it requires

0.2A, and if RS-485 port is used (T1S), it requires 0.1 A)

Replace the faulty option card.

Replace the faulty I/O module or faulty expansion rack/unit.

Basic Hardware and Function 295

CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net