06/15 Rev. 10 USER + SERVICE MANUAL /Status Reports64-xx – DPM – PEM – ALX 73x (PMA) – LPA 81x (Printer) – ALX 92x – AP 5.4 – AP 5.6505130 PSU xxxxxxxxStatus Failure of the power supply. "xxxxxxxx" = four byte long error code inhexadecimal form. Every bit stands for a certain status of the power supply.The bit is set to "1", if the status occured.• Byte 1: xxxxxxxxx x7 6 5 4 3 2 1 0Output 1 (5 V logic):The output voltage exceeds theadmissible range.Output 2 (20-28 V printhead):The output voltage exceeds theadmissible range.Output 3 (galv. 24 V):The output voltage exceeds theadmissible range.Output 4 (48 V motor):The output voltage exceeds theadmissible range.Dot Check defective:Indicates a detected power supplyfault in the course of a Dot-Check-Measurement. Example: Whilemeasuring the internal referenceresistance, have the admissibletolerances been exceeded.Fan defective:Indicates a fan-fault, if its controlallows any error detection.Critical overheat:A critical temperature is set inregister "critical temperature limit". Ifthe critical value is exceeded, thepower supply switches offimmediately and sets this bit to 1.Overheat:A critical temperature is set inregister "critical temperature limit". Ifthe critical value is exceeded, thepower supply switches off wellcontrolled and sets this bit to 1.
