Cooper Lighting S260-75-1 User Manual
Page 15
S260-75-1
15
!
SAFETY
FOR LIFE
Figure 14.
Type S control front panel.
020076KM
Index No.
Figure 2
Description
Purpose and Use
1
SOURCE PREFERENCE AND RETURN MODE
Selects either Source I (PREF I) or Source II (PREF II) as the
Switch (S4) (See Note A)
preferred source, or no preference (NO PREF). Also selected
parallel (P) or non-parallel (NP) return mode.
2
SOURCE I ENERGIZED lamp
Indicates all three phases of Source I are energized.
3
OPERATION SELECTOR Switch (S3)
Programs control for either AUTOmatic or MANUAL operation.
4
PREFERRED TO ALTERNATE TIMER
Determines time delay before transfer to alternate source when
preferred source voltage is lost.
5
SWITCH I OPEN and CLOSED lamps
Indicates status of Source I high voltage switch.
6
LAMP TEST switch (S6)
Tests all indicating lamps on front panel.
7
LATCH RELAY STATUS TEST terminals
Provides electrical access to both sides of latch relay to
(T1—T2—T3)
determine if control is in Source I or Source II mode.
8
SWITCH II OPEN and CLOSED lamps
Indicates status of Source II high voltage switch.
9
ALTERNATE TO PREFERRED TIMER
Determines the time delay before transfer to preferred source
when preferred source voltage is restored.
10
MANUAL OPER. SOURCE I and MANUAL OPER. Provides means to OPEN and CLOSE Source I and Source II
SOURCE II switches (S1 and S2)
transfer switch upon manual command, when S3 is in MANUAL
position.
11
SOURCE II ENERGIZED lamp
Indicates all three phases of Source II are energized.
12
CONTROL MODE switch (S5)
Blocks automatic return transfer to preferred sources (HOLD ON
ALTERNATE); also enables control to be operated without
operating the high voltage transfer switches (TEST).
13
FAULT-BLOCK OPERATED lamp
Indicates fault-block has operated (part of fault-block accessory).
14
RESET switch (S7)
Resets the control after a fault block operation (part of fault-block
accessory). S3 must be in MANUAL position.
15
Fuses
Voltage input of all three phases of both Source I and Source II
are fused for 10A-125 vac; white button shows on front of fuse if
fuse blows.
TABLE 4
Description and Use of Operating Controls and Indicators
Note A — Tab provided to lock switch knob in set position; stop screw prevents inadvertent selection of parallel return transfer mode.
15
14
13
12
11
10
9
8
7
5
6
4
3
2
1