S&C CS-1A User Manual

S&C Instruction Sheet 719-500 23
Adjusting the Switch Operator
STEP 6� Operate the switch operator to the fully Open
position. Remove the switch-circuit fuseholder
and, if necessary, adjust the cams as described
in Step 4 until all “b1” contacts are in the Closed
position.
STEP 7� Reinsert the motor-circuit fuseholder and operate
the circuit-switcher. Both sets of contacts should
now be correctly positioned for both the Open
and Closed positions of the circuit-switcher.
Sufcient adjustment is available to provide
correct positioning of both sets of contacts.
Because each cam can be individually adjusted
in 4.5-degree increments, any “al” contact can be
changed to a “b1” contact, or vice versa. Also,
because of the many positions to which the
cams can be adjusted, the various rollers can
be engaged or disengaged to respectively open or
close their contacts simultaneously, sequentially,
randomly, or in various combinations.
Adjustment of the auxiliary switch for other
than the “standard” contact configuration is left
to the user. The motor-circuit fuseholder should
be removed when adjusting these contacts.
(Switch operators having catalog numbers
with the suffix “-Q” are equipped with an extra
auxiliary switch, terminals 27 through 34, having
four contacts, two “a1” and two “b1,” that may
be adjusted as described in Steps 1 through 6.
See Figures 12 and 13 on page 22 and Figure 14
on page 24.)
STEP 8� Reinsert the fuseholders for the motor, space-
heater, and (if applicable) shunt-trip circuits.
About the Extra Auxiliary Switches
Switch operators having catalog numbers with either the
sufx “-W” or “-Z” are equipped with an extra auxiliary
switch coupled to the circuit-switcher. The sufx “-W”
auxiliary switch consists of eight contacts (terminals 35
through 50). The sufx “-Z” auxiliary switch consists of 12
contacts (terminals 35 through 50 plus terminals 80 through
87). These contacts are provided so external circuits can
be established to monitor circuit-switcher operation. Each
contact is operated by a cam-actuated roller, and the cams
are individually adjustable in 4.5-degree increments.
The “standard” configuration for the suffix “-W” extra
auxiliary switch consists of four “a2” contacts (termi-
nals 35 through 42) and four “b2” contacts (terminals 43
through 50). The “standard” configuration for the 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 termi-
nals 84 through 87). Thus, with the circuit-switcher in the
fully Closed position, the “a2” contacts should be closed
and the “b2” contacts should be open. Conversely, with
the circuit-switcher in the fully Open position, the “a2”
contacts should be open and the “b2” contacts should be
closed. See Figure 15 on page 25.
Any suffix “-W” or “-Z” auxiliary-switch contact
being used must be checked for proper operation after
satisfactory electrical operation of the circuit-switcher
has been achieved. Check the auxiliary-switch contact
engagement for both the Open and Closed positions of
the circuit-switcher.
Adjustment of the suffix “-W” or “-Z” extra auxiliary
switch is identical to the adjustment performed for the
auxiliary switch and the suffix “-Q” extra auxiliary switch.
Therefore, if adjustment of the suffix “-W” or “-Z” auxil-
iary switch is needed, refer to the “Adjusting the Auxiliary
Switches” section on page 22 and Figures 12 through 15
on pages 22 through 25.

S&C CS-1A Specifications

General

Brand	S&C
Model	CS-1A
Category	Switch
Language	English