User manual

GMC-I Messtechnik GmbH 65
RSTSRC (RESET SOURCE REGISTER):
Description / Text per Data Sheet no. C8051F122
DISPLAY Meaning/Cause Remedy
left right
Err PFC PFC Error Inadequate/unstable line voltage or device error, not ready for operation, device controls
disabled, shutdown (OUTPUT OFF)
Err AC-H Change from AC-LOW to AC-HIGH Transition from the „lower“ line voltage range (= status after power ON) AC_L to the „upper“
range AC_H generates message „ERR AC-H“.
Please note: Pnom value is not automatically raised in the process! A new „Power ON“ is re-
quired for this purpose, including:
– automatic RESET (parameter setting: „POWER_ON RST“) or
– subsequent „RESET“ (manual operation/interface) or
– Recall of a suitable SETUP memory
(which has not been saved under power derating conditions!)
(Pnom is the reference quantity for the PSET function!)
Err AC-L Change from AC-HIGH to AC-LOW up to and including firmware 004:
Transition from the „upper“ line voltage range to the „lower“ range generates message
„ERR AC-L“ and results in a shutdown if no power derating has been active (operation dis-
abled, „Power ON“ required!)
Transition from the „upper“ line voltage range AC_H to the „lower“ range AC_L
generates message „ERR AC-L“ without shutdown if power derating has already been active.
as from firmware 005:
Transition from the „upper“ line voltage range to the „lower“ range generates the message
„ERR AC-L“ and results in power derating.
Err AC-F AC-FAIL Inadequate/unstable line voltage or device error, not ready for operation, device controls
disabled, shutdown (OUTPUT OFF)
D7 (80H): RESERVED
D6 (40H): CNVRSEF: (CONVERT START 0 RESET SOURCE FLAG)
D5 (20H): CORSEF: (COMPARATOR 0 RESET FLAG)
D4 (10H): SWRSF: SOFTWARE RESET FLAG
D3 (08H): WDTRSF: WATCHDOG TIMER RESET FLAG
D2 (04H): MCDRSF: MISSING CLOCK DETECTOR FLAG
D1 (02H): PORSF: POWER-ON RESET FLAG
D0 (01H): PINRSF: HW PIN RESET FLAG