Omron K3HB-C User Manual page 9

VIII
(16) Do not connect anything to unused terminals.
(17) Output turns OFF when the mode is changed or settings are initialized. Take this into
consideration when setting up the control system.
(18) Install an external switch or circuit breaker that complies with applicable IEC60947-1
and IEC60947-3 requirements and label them clearly so that the operator can quickly
turn OFF the power.
(19) Use the specified cables for the communications lines and stay within the specified
DeviceNet communications distances. Refer to the User's Manual (Cat. No. N129) for
details on communications distance specifications and cables.
(20) Do not pull the DeviceNet communications cables with excessive force or bend them
past their natural bending radius.
(21) Do not connect or remove connectors while the DeviceNet power is being supplied.
Doing so will cause product failure or malfunction.
(22) Use cables with a heat resistance specification of 70ºC min.