Yaskawa PC NC - Manual (Page 35)

2 - 12
YASNAC PCNC Operating Manual Chapter 2: Basic Operation of YASNAC PCNC
2) Replacing the Battery
Replace the battery easily with the following procedure.
€ Turn the PCNC power OFF.
ó Remove connector of Battery.Then, remove the battery from the holder by desolder-
ing.
ì Fit the new battery in the holder and carefully solder RED(+) and BLACK (-) wires to
the Battery. Put the battery in its holder.Then put back battery connector, the connec-
tor may be inserted in either direction, it must be securely inserted, otherwise, the
power will not be supplied by the battery. (See Fig. 2.7.)
FIGURE 2.3.4.2: Connecting the Battery Connector
ö Turn the power ON.
ú Make sure that “BAT” is not blinking on the CRT screen, and that the red color LED
in the board is OFF.
1. If the red color LED remains lit after replacing the battery, the connector might be inserted
incorrectly or the battery might be faulty.
2. Power OFF operation is allowed a few seconds after turning the power ON.
3. After turning the power OFF, replace the battery quickly. If the PCNC unit is left with the
battery removed, the data stored in the memory could be lost.
B
A
T
T
E
R
Y
Connect Red wire
( + )
Connect Black wire ( - )