Emerson Control Techniques Focus 3N, Руководство пользователя

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The F3N drive control circuitry is not isolated *. No points in the control
circuitry, including common, should be connected to earth ground unless
specifically s connections hown on the supplied wiring diagrams. No grounding
should be made on the terminal block. Improper connections to ground,
including speed potentiometer connections, will result in immediate control
failure and will void the factory warranty.
* See How to Achieve Isolation on page 68 of this manual
Page 28
Ter
Installation
(TB
inserted int
right side of
the terminal block must be installed so
wire exten
PC board. l
minal Block (TB2)
On chassis drives, the terminal block
2) is installed so that control wires are
o the terminal point from the
the block. For enclosed drives,
s d up (90
0
angle) from the drive
f the control wires extend out
to the side, there is not sufficient
clea
cover.
rance space for the enclosure
If the customer supplied motor
thermal is not used, pins 1 & 2 must be
jumpered o
Shie ed w
recommend
other signal wire connections. Shields
sho
the
r the drive will not start.
NOTE:
ld ire (2 or 3 conductor) is
ed for speed command and
uld be taped off at the remote end. At
drive, connect shields to the circuit
common, r
curr
line
wiring).
oute wire away from high
ent s (i.e. AC lines and armature
Enclosed
Units
Wire Entry
Wire Entry
Chassis
Units
Signal &
Control Wiring
Entry
Recommended Cables and pots are
available from :
Control Techniques Service Center
@ 1-800-367-8067