10. Ground the shields of the control cables at the clamp plate. The shields should be
continuous as close to the terminals of the control unit as possible. Only remove the
outer jacket of the cable at the cable clamp so that the clamp presses on the bare shield.
The shield (especially in case of multiple shields) can also be terminated with a lug and
fastened with a screw at the clamp plate. Leave the other end of the shield unconnected
or ground it indirectly via a few nanofarads high-frequency capacitor, eg, 3.3 nF / 630
V. The shield can also be grounded directly at both ends if they are in the same ground
line with no significant voltage drop between the end points.Tighten the screws to secure
the connection.
11. Connect the conductors to the appropriate detachable terminals of the control unit. See
the default I/O diagram in chapter
. Use shrink tubing or insulating
tape to contain any stray strands. Tighten the screws to secure the connection.
Note:
Keep any signal wire pairs twisted as close to the terminals as possible. Twisting
the wire with its return wire reduces disturbances caused by inductive coupling.
202 External control unit (P906)
Summary of Contents for ACH580-04
Page 1: ... ABB DRIVES FOR HVAC ACH580 04 drive modules Hardware manual ...
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Page 128: ...3 6 5 5 128 Maintenance ...
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Page 156: ...R10 standard configuration 156 Dimension drawings ...
Page 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Page 158: ...R10 with option B051 158 Dimension drawings ...
Page 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Page 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
Page 161: ...R10 with option B051 P906 190 Tools R10 1 1 Dimension drawings 161 ...
Page 162: ...R11 standard configuration 162 Dimension drawings ...
Page 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
Page 164: ...R11 with option B051 164 Dimension drawings ...
Page 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Page 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
Page 167: ...R11 with option B051 P906 Dimension drawings 167 ...
Page 186: ... Declaration of conformity 186 The Safe torque off function ...
Page 206: ...Dimension drawing 206 External control unit option P906 ...
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