Skytron ELITE 6002, Руководство по обслуживанию

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RELAY BOX
CN4
FUSE
15A
S-O RELAY
(-)
BATTERY (+)
1
8
6
5
7
2
3
4
6-6. Switch-Over Relay
a. Switch-Over Relay in OFF Position
The Switch-Over Relay supplies the 24 volt input
power from either the BATTERY or AC120V oper-
ating modes to the relay box for table operation. In
the normal OFF position, BATTERY power is sup-
plied to the relay box. See figure 6-9.
Figure 6-9. Relay in OFF Position
b. Switch-Over Relay in Activated Position
When the AC120V mode is activated by the main
switch, a signal from the relay box activates the
Switch-Over Relay. The relay then supplies the
AC operating mode output power to the relay box
and also activates the battery charging circuit. See
figure 6-10.
NOTE
The battery charging circuit is only op-
erational when the table is in the
AC120V operating mode.
6002B
CN15
CHARGING
BOX
CN14
(-)
B)
CAPACITOR
FUSE
15A
RELAY BOX
RELAY BOX
SIGNAL OUT
S-O RELAY
2
1
3
4
8
6
5
7
CN4
Figure 6-10. Relay in Activated Position
c. Switch-Over Relay Test
Using a DC voltmeter, test the operation of the
relay in both the OFF (AC120V- OFF ) and Acti-
vated (AC120V - ON ) positions. See figure 6-11.
NOTE
The Switch-Over Relay mounting block
may have to be removed from the base
for test access.
OFF: (AC120V - OFF)
term. 7(-) and term. 1(+) = 24 to 28VDC
term. 7(-) and term. 6(+) = 0VDC
Activated: (AC120V - ON)
term. 7(-) and term. 6(+) = 26.5±1VDC
2 7
1 8
3
4 5
DCV
6
Figure 6-11. Switch-Over Relay