
14.ABSOLUTE-POSITION DETECTION OPERATION B-63324EN-1/03
- 590 -
-Alarm
The following alarms may be detected when the power is turned on.
Number Message Contents
OT0032 NEED ZRN(ABS PCDR) The reference position and the absolute pulse coder
counter value do not match.
OT0034 BATTERY ZERO(ABS PCDR) The battery voltage of the absolute position detector has
fallen to "0", or power is supplied to the pulse coder for the
first time.
OT0035 IMPOSSIBLE ZRN(SERIAL) An attempt was made to create correspondence between
the reference position and the absolute position detector
when the origin cannot be established.
OT0036 BATTERY DOWN (ABS PCDR) Low absolute position detector battery voltage
SV0101 DATA ERROR(ABS PCDR) A correct machine position cannot be obtained as the
absolute pulse coder has malfunctioned or the machine
moved too far during power ON.
CAUTION
The voltage level of the backup battery for the
absolute pulse coder is normally 6 V. Over time,
however, the voltage level drops.
6V
PBATL
PBATZ
4.5V
1.5V
- PBATL:Battery alarm
When this alarm occurs, "BAT" is displayed on the
status bar on the screen.
In addition, alarm OT36 BATTERY DOWN (ABS
PCDR) is indicated.
- PBATZ:Battery zero alarm
This alarm occurs if the power to the NC unit is turned
off when the voltage
is approximately 1.5 V or less.
In this case, alarm OT32 NEED ZRN (ABS PCDR) or
OT34 BATTERY ZERO (ABS PCDR) is indicated.