ABB HITACHI EDS500 Series Manual page 10

Warnings and cautions
The device shall be powered off while accessing any of the connectors X1 (power
connector) or X4 (alarm relay). Any other connectors (e.g. RS-232 or 4-wire/2-wire
communication port/X3) are hot-pluggable while the device is operating.
No plug shall be freely accessible in normal operation due to safety reasons.
Connect the device only if you can make sure that the specifications are kept.
Electronic components are sensitive for electrostatic discharge.
To prevent damages to your devices deviate possibly occurring static charges before
touching the module or components. We recommend to wear a conductive grounded wrist
tape.
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W A R N I N G
A D V I C E
Safety instructions
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