Yaskawa MicroTrac DSD Drives Thumbwheel Selector - Manual (Page 3)

WARNING
HAZARDOUS VOLTAGES CAPABLE OF
SEVERE INJURY OR DEATH MAY BE
PRESENT WITHIN CABINET. BEFORE
OPENING CABINET DOOR, DISCONNECT
AND LOCK-OUT INCOMING POWER.
CAUTION
TO AVOID DAMAGE TO ELECTRONIC
COMPONENTS, DO NOT MAKE ANY
CONNECTIONS WITH POWER APPLIED.
USE PROPER ELECTROSTATIC
DISCHARGE (ESD) PROCEDURES WHEN
HANDLING PRINTED CIRCUIT BOARDS.
1. Turn off incoming power.
2. Locate where this assembly is to be
physically mounted. Refer to the System
Schematic for the location.
3. If replacing an existing assembly, then
disconnect all cables and wires to the
assembly from their connectors. Then
unmount the existing assembly.
4. Mount the assembly into its proper
position. Note that the printed circuit board
will fit through a cutout properly sized for
the switch bank.
5. Connect all of the cables and wires
per the Interconnection Diagram.
Refer to the equipment Interconnection
Diagram for detailed wiring information.
Ensure that wire size and disconnect
devices conform to the installation
contractor’s drawings and to all applicable
codes. Observe the following:
A. In long cable runs, take care to
prevent excessive voltage drop.
B. Separate the leads used for speed
reference, feedback, and other low level
signals from those used for the motor
armature, field and AC power. Do not run
these two groups in the same conduit or
wire trough.
C. Provide shielded and twisted leads as
indicated on the schematic and
Interconnection Diagrams. Connect all
shields on shielded wire to system common
(not ground) on one end only. Use Twisted
shielded pair wire for long runs.
SETUP
CAUTION
TO AVOID DAMAGE TO ELECTRONIC
COMPONENTS, DO NOT MAKE ANY
CONNECTIONS WITH POWER APPLIED.
There are nine possible Thumbwheel
Switch Banks for connection to a Local I/O
board. The Thumbwheel Switch Bank is
selected by the BANK SELECT jumper on
connector J2 on the Thumbwheel Selector
Switch Assembly's printed circuit board.
Thumbwheel Switch Bank 0 through 8 may
be selected. To determine the proper BANK
SELECT jumper position, refer to the
System Schematic.
IMPORTANT
Ensure that there is no duplication of
Switch Bank numbers in a daisy chained
group of Thumbwheel Selector Switch
Assemblies.
3 I/O 875