PL-DU6900/PL-DU7900 User Manual
12
Preface
• When connecting the DU's power cord, be sure to use a cord that is appropriate
for the current and voltage used (0.75mm
2
or larger).
• When installing the DU to a metal panel or cabinet, be sure to design the DU's
power cut-off switch as a separate device that is within easy reach by the unit's
operator.
• There is a danger of explosion if the DU's backup battery is incorrectly replaced.
Replace only with same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer's instructions.
• Be sure the unit the DU is built into uses an EN60950 approved structure.
