AC Power Distribution
115 VAC_PH_IN
Workstation
Interconnect
Cable
Power/Motor Relay PCB
Backplane
TP 9
P4
6
P2
9
P1
14
3
P1
14
FS_INTLK_B
Key Power
See
"Interlocks"
P7
12
P7
6
115VAC_PH_SW
(see "AC Power
Distribution")
K10
Key Power Distribution
AC Power to PS3
a. AC power comes from K10 in the Power/Motor Relay PCB and goes into the Power/Signal Interface PCB as
115VAC_PH_SW, as described above.
b. Rather than pass through F6 as above, a separate path loops back out to the Power/Motor Relay PCB as
115VAC_PH_MTR.
c. The 115VAC_PH_MTR connects to the K16 relay, then in series to the K15 relay. With the relays in switched state, the
signal becomes MOTOR_115VAC, exiting the PCB and connecting to PS3. As with PS1 and PS2, PS3 is held
energized through the K10 relay.
d. PS3 is further controlled by the coils of the K16 and K15 relay, which are energized as described in the Lift Column
section of this manual.
4
Service
Periodic Maintenance
Contents
Schematics
Illustrated Parts
Installation
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