S&C Mark VI Instructions For Installation Manual page 45

Step 62
Switch operators furnished with either Catalog Number
Suffi x "-W" or "-Z" are equipped with an extra auxiliary switch
which is coupled to the disconnect. Catalog Number Suffi x
"-W" auxiliary switch consists of eight contacts, Terminals
35 through 50. Catalog Number Suffi x "-Z" auxiliary switch
consists of twelve contacts Terminals 35 through 50 plus
Terminals 80 through 87. These contacts permit external
circuits to be established to monitor disconnect operation.
A cam-actuated roller operates each contact and the cams
are individually adjustable in 4.5-degree increments.
The "standard" configuration for Catalog Number Suffix
"-W" extra auxiliary switch consists of four "a2" contacts,
Terminals 35 through 42 and four "b2" contacts, Terminals
43 through 50. The "standard" configuration for Catalog
Number Suffix "-Z" extra auxiliary switch consists of six
"a2" contacts, Terminals 35 through 42 and Terminals 80
through 83 and six "b2" contacts, Terminals 43 through 50
and Terminals 84 through 87.
Switch operator in fully closed position
Figure 62. Travel limit and auxiliary switches.
WIRING AND ADJUSTING THE SWITCH OPERATOR
"a2"
Extra
contacts
auxiliary
closed
switch,
Extra
8-PST
auxiliary
(Catalog
switch,
Number
12-PST
"b2" Suffi x
(Catalog
contacts
"-W")
Number
open
Suffi x "-Z")
"a2" contacts
closed
"b2" contacts
open
With the disconnect in the fully closed position, the "a2"
contacts should be closed and the "b2" contacts should be
open. With the disconnect in the fully open position, the
"a2" contacts should be open and the "b2" contacts should
be closed. See Figure 62.
Any Catalog Number Suffix "-W" or "-Z" auxiliary switch
contact being used must be checked for proper operation
after satisfactory electrical operation of the disconnect
has been achieved. Check the auxiliary-switch contact
engagement for both the open and closed positions of the
disconnect. Adjustment of Catalog Number Suffix "-W" or
"-Z" extra auxiliary switch is identical to the procedure
for the standard auxiliary switch and Catalog Number
Suffix "-Q" extra auxiliary switch. If adjustment of Catalog
Number Suffix "-W" or "-Z" auxiliary switch is needed, refer
to Step 61 and Figures 60 and 62.
Switch operator in fully open position
45
"a2"
Extra
contacts
auxiliary
open
switch,
Extra
8-PST
auxiliary
(Catalog
switch,
Number
12-PST
"b2" Suffi x
(Catalog
contacts
"-W")
Number
closed
Suffi x "-Z")
"a2" contacts
open
"b2" contacts
closed
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