Troubleshooting; No Keypad Display - Display Contrast Adjustment - Baldor 18H Series Installation & Operating Manual

Section 5

Troubleshooting

No Keypad Display - Display Contrast Adjustment

Action
Apply Power
Press DISP key
Press SHIFT key 2 times Allows display contrast
Press Y or
key
Press ENTER key
MN718
The Baldor Series 18H Control requires very little maintenance and should provide years
of trouble free operation when installed and applied correctly. Occasional visual
inspection should be considered to ensure tight wiring connections and to avoid the build
up of any dust, dirt, or foreign debris which can reduce heat dissipation.
Before attempting to service this equipment, all input power must be removed from the
control to avoid the possibility of electrical shock. The servicing of this equipment should
be handled by a qualified electrical service technician experienced in the area of high
power electronics.
It is important to familiarize yourself with the following information before attempting any
troubleshooting or service of the control. Most troubleshooting can be performed using
only a digital voltmeter having an input impedance exceeding 1 meg Ohm. In some
cases, an oscilloscope with 5 MHZ minimum bandwidth may be useful. Before consulting
the factory, check that all power and control wiring is correct and installed per the
recommendations given in this manual.
If there is no visible display, use the following procedure to adjust the contrast of the
display.
Description
No visible display.
Ensures control in Display mode.
adjustment.
Adjusts display contrast
(intensity).
Saves display contrast
adjustment level and exits to
display mode.
Display
Display mode.
Comments
Troubleshooting 5-1