Azbil C35 Series

4-3
Chapter 4. WIRING
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Terminal assignment label symbols
The following table shows the meanings of the symbols used for the terminal
assignment label attached to the side panel of this unit:
Symbol Contents
~
AC
DC power supply
Caution, there is danger of electric shock
Caution
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Wiring precautions
• Before starting the wiring work, carefully check the label on the side panel of
this unit to understand the model No. and terminal No. to carry out the wiring
properly.
• Use an appropriate crimp type terminal lug suitable for the M3 screw to connect
the terminals. The tightening torque of the terminal screw must be 0.4 to
0.6N·m.
• Pay special attention so that no crimp type terminal lugs are in touch with
adjacent terminals.
• To connect 2 (max.) crimp terminals to the same terminal screw, bend the crimp
terminals beforehand.
• Keep the input/output signal cables 50 cm or more away from the drive power
cable and/or power cable. Additionally, do not lay the input/output signal cables
and the drive power cable and/or power cable together in the same conduit or
duct.
• When connecting this unit and other measuring instrument in parallel,
carefully check the conditions necessary for other instrument before starting the
instrumentation.
• The digital input is so designed that it is potential free input. A contact for micro
current must be used.
• The heater current carrying conductor must be routed through the current
transformer. Additionally, carefully check that the heater current does not exceed
the allowable current limit stated in the specification. If the heater current
exceeds the allowable current limit, this might cause damage to this unit.
• The input of the current transformer cannot be used for the phase angle control.
• An optional terminal cover is available to prevent electric shock. (Model No.:
81446912-001 for C35 or 81446913-001 for C36)
Terminal cover
• The part between the control output 1 and control output 2 is not isolated. When
necessary, use an appropriate isolator.