Vector 750 Watt Power Inverter Specifications download pdf (Page 70)

Section 5

Troubleshooting

Troubleshooting 5-1MN722

Baldor Series 22H Controls require 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. The control should be

mounted in a location that protects the internal circuits and external wiring from moisture

or liquid contaminants.

When a fault condition occurs, motor operation stops and the fault is displayed on the

Keypad Display. If a REGEN FLT is displayed, this indicates a fault in the converter

section of the control. To determine the specific converter section fault, the keypad must

be moved to the Converter Control Board keypad connector. The fault log can be

examined and the specific faults will help to further isolate the failure. A list of possible

Converter Control Board Fault Messages is given in Table 5-1. Other fault messages that

pertain to the Inverter Control Board are given in Table 5-2.

When a fault has been identified, 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 megOhm. 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.

No Keypad Display - Display Contrast Adjustment

If there is no visible display, use the following procedure to adjust the contrast of the

display.

Action Description Display Comments

Apply Power No visible display.

Press DISP key Puts control in Display mode. Display mode with nothing visible.

Press SHIFT key 2 times Accesses display contrast

adjustment.

Press  or  key

Adjusts display contrast

(intensity).

Press ENTER key Saves display contrast

adjustment level and exits to

display mode.

When a Fault is Displayed When a fault is displayed, press “DISP” so that you can view the menu items (to go to

Diagnostic or Fault Log menus etc.). When you exit these menus, the fault message will

again be displayed. The control must be reset to clear the fault message from the

display.

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Vector 750 Watt Power Inverter Specifications Page 70

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