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(24) Do not turn the power supply to the Digital Controller ON or OFF while the USB-Serial Conversion
Cable is connected. The Digital Controller may malfunction.
(25) Do not bend the communications cables past their natural bending radius. Do not pull on the com-
munications cables.
(26) Do not continue to use the Digital Controller if the front surface peels. Doing so may cause mal-
function.
(27) Make sure that the indicators on the USB-Serial Conversion Cable are operating properly.
Depending on the application conditions, deterioration in the connectors and cable may be accel-
erated, and normal communications may become impossible. Perform periodic inspection and
replacement.
(28) Do not disconnect the USB-Serial Conversion Cable while communications are in progress. The
Digital Controller may be damaged or may malfunction.
(29) Connectors may be damaged if they are inserted with excessive force. When connecting a con-
nector, always make sure that it is oriented correctly. Do not force the connector if it does not con-
nect smoothly.
(30) Do not touch the external power supply terminals or other metal parts of the cables on the Digital
Controller.
(31) Noise may enter on the USB-Serial Conversion Cable, possibly causing equipment malfunctions.
Do not leave the USB-Serial Conversion Cable connected constantly to the equipment.
(32) With the E5ED/E5ED-B, do not connect cables to both the front-panel Setup Tool port and the
top-panel Setup Tool port at the same time. The Digital Controller may be damaged or may mal-
function.
(33) Observe the following precautions when wiring the E5@D-B.
• Follow the procedures given in refer to the E5
(Cat. No. H224).
• Do not wire anything to the release holes.
• Do not tilt or twist a flat-blade screwdriver while it is inserted into a release hole on the terminal
block. The terminal block may be damaged.
• Insert a flat-blade screwdriver into the release holes at an angle. The terminal block may be
damaged if you insert the screwdriver straight in.
• Do not allow the flat-blade screwdriver to fall out while it is inserted into a release hole.
• Do not bend a wire past its natural bending radius or pull on it with excessive force. Doing so may
cause the wire to break.
• Do not use crossover wiring except for the input power supply and communications.
E5@D Digital Temperature Controllers Communications Manual (H225)
Precautions for Safe Use
@
D Digital Temperature Controllers User's Manual
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