9. Maintenance and Checks
9.3 Periodic checks
! CAUTION | 1. Pay special attention during the maintenance work to minimize the risk of |
| electrical shock. |
2.Turn off power immediately if the T1/T1S or related equipment is emitting smoke or odor. Operation under such situation can cause fire or electrical shock.
Check the T1/T1S based on the following items every six months. Also perform checks when the operating environment is changed.
Item | Check | Criteria |
Power supply | Measure the power voltage at the | 85 - 132/170 - 264 Vac (AC PS) |
| T1/T1S’s power terminals. | 20.4 - 28.8 Vdc (DC PS) |
| Check that the terminal screw is not | Not loose |
| loose. |
|
| Check that the power cable is not | Not damaged |
| damaged. |
|
Installation | Check that the unit is installed securely. | Not loose, no play |
condition |
|
|
| Check that the option card is inserted | Not loose, no play |
| securely. (if any) |
|
| Check that the expansion rack/unit is | Not loose, no play |
| installed securely. (if any) |
|
| Check that the expansion cable is | Not loose, not damaged |
| connected securely and the cable is not |
|
| damaged. (if any) |
|
| Check that the I/O module on the | Not loose, no play |
| expansion rack is inserted securely. (if |
|
| any) |
|
Input/output | Measure the input/output voltage at the | The voltage must be within the |
| T1/T1S’s terminals. | specified range. |
| Check the input status LEDs. | The LED must light normally. |
| Check the output status LEDs. | The LED must light normally. |
| Check that the terminal block is installed | Not loose, no play |
| securely. |
|
| Check that the terminal screw is not | Not loose, not contacting the next |
| loose and the terminal has a sufficient | terminal |
| distance to the next terminal. |
|
| Check that the each I/O wire is not | Not damaged |
| damaged. |
|
290 T1/T1S User’s Manual
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
