Reliable STT293 - Rtc Schematic Diagram

STT293 CONCISE TOWER CRANE MANUAL
57- EURC1.0ENG
3.3. RTC SCHEMATIC DIAGRAM
Functional diagram
Name
RP: Potentiometer
IC: Signal amplifier
Operation: The control signal of the potentiometer RP (slewing mechanism RTC) is
converted through the amplifier IC to a single and three-phase AC-
voltage that directly controls the driving motor.
The slewing direction is controlled through a separate signal.
IC
IC
IC
IC
᧩
V
Contactor, counterclockwise
direction
Contactor, clockwise
direction
Adjustable 3-phase AC-
supply
Voltage feedback
RP
Eddy current voltage
output
! !
(909) 222-0202 www.reliablecraneservice.com 260 North Smith Ave. Corona, CA 92880
CRANE SERVICE