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Electrical installation
61
Control cable grounding
The shields of all control cables connected to the JCU Control Unit must be
grounded at the control cable clamp plate. Use four M4 screws to fasten the plate as
shown below left. The plate can be fitted either at the top or bottom of the drive.
The shields should be continuous as close to the terminals of the JCU as possible.
Only remove the outer jacket of the cable at the cable clamp so that the clamp
presses on the bare shield. At the terminal block, use shrink tubing or insulating tape
to contain any stray strands. 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 (e.g. 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.
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.
Mounting the clamp plate
Remove outer jacket
of cable at clamp to
expose cable shield
Use shrink tubing or
tape to contain
strands
0.7 N·m
(6.2 lbf·in)
1.5 N·m
(13 lbf·in)
Summary of Contents for ACSM1 Series
Page 1: ...ACSM1 Hardware Manual ACSM1 04 Drive Modules 0 75 to 45 kW...
Page 2: ......
Page 4: ......
Page 14: ...Table of contents 14...
Page 20: ...About this manual 20...
Page 24: ...The ACSM1 04 24...
Page 30: ...Planning the cabinet assembly 30...
Page 46: ...Planning the electrical installation 46...
Page 70: ...Maintenance 70...
Page 84: ...Technical data 84...
Page 90: ...Mains filters 90...
Page 96: ...Dimension drawings 96 Frame size A...
Page 97: ...Dimension drawings 97...
Page 98: ...Dimension drawings 98 Frame size B...
Page 99: ...Dimension drawings 99...
Page 100: ...Dimension drawings 100 Frame size C air cooled module...
Page 101: ...Dimension drawings 101...
Page 102: ...Dimension drawings 102 Frame size C for cold plate mounting...
Page 103: ...Dimension drawings 103 Frame size D air cooled module...
Page 104: ...Dimension drawings 104 Frame size D for cold plate mounting...
Page 106: ...Dimension drawings 106 Mains filters type JFI xx...
Page 108: ...Dimension drawings 108 Braking resistors type JBR xx...
Page 110: ...Dimension drawings 110...
Page 111: ......