Rockwell Automation MDO16FNS 16-Channel Digital Output Module 120Vac/dc - Manual (Page 15)

MDO16FNS October 2005 – Issue 4 15
Triguard SC300E MDO16FNS 16-Channel D/O Module 120Vac/dc
DUAL-SLOT HOT REPAIR
1. Insert the new module into the vacant hot repair slot ensuring that it engages properly
in the upper and lower guides in the chassis. The top and bottom chassis rails carry
alignment marks to assist. Pull out the ejection levers and as the module is pushed
back engage the levers on the chassis rails. The levers should then be used to draw
the module into position, some resistance will be felt as the rear connector pins
engage. The module should be fixed in position with the securing screws.
2. Operate the On/Off Line Request switch on the new module. Ascertain that the three
On Line LEDs on the new module illuminate for one second, extinguish for one second
and then illuminate permanently as the LEDs on the old module extinguish. This
sequence indicates that the new module has been put on line and the old module
taken off-line. If the LEDs on the new module do not illuminate either the first or second
time or fail to remain illuminated, the new module must be regarded as faulty. The old
module’s LEDs should remain illuminated indicating that it is still on-line.
3. If the new module is serviceable slacken the screws on the old module and use its
ejection levers to remove it from the chassis.
PREVENTIVE MAINTENANCE
No preventive maintenance is necessary.
SERVICE SUPPORT
SPARES
Spare parts and technical advice can be obtained from your local area offices.