Hollow shaft display with serial output
EP43RS / EP46RS
Date: 06/04/21
File: EP4RS_4.1_ing.doc
Rev: 4.1
Page: 6/12
Battery status
The battery status is indicated by an icon on the display and by the modbus vBatt register.
The modbus vBatt register can have three different values:
•
0x0000 if the battery is charged and is functioning optimally.
•
0xFFFF if the battery charge level is below a critical threshold: in this case it is necessary to
substitute it within 15 days.
•
0x00FF if the battery is completely discharged, absent, or malfunctioning. In this case the battery
must be immediately replaced because in this state it is not guaranteed that the instrument will be able to
maintain the correct value when the 24VDC power supply is off.
NOTE: if this value is present when the machine is turned on, it is necessary to execute a homing or
reset procedure because the value measured by the instrument is no longer consistent with the
actual position of the machine.
Battery substitution
The internal backup battery assure that the value is updated and saved, even in the absence of external
power, for a period of 6-8 years depending on the working conditions.
When the battery icon appears on the display it is necessary to substitute it within 15 days, according to the
following procedure:
•
power the unit with the external power supply to prevent losing the correct position
•
remove the two hex screws and lift the battery cover (note: the cover is connected to a small flexible
cable and special care must always be used to prevent damaging or pinching the cable)
•
remove the old battery
•
insert a new ½ AA 3,6V battery respecting the polarity (the negative pole must be oriented towards
the inside of the unit)
•
replace the battery cover making sure the cable is positioned correctly along the battery.
