LGB 52121 Instructions De Service page 4

USA GB
52120
Analog Throttle, Indoor/Outdoor
52121
Analog Throttle, Unmounted
THE PRODUCT
The powerful LGB throttles incorporate
state-of-the-art technology:
• 5 amp capacity with built-in AC/DC
conversion
• SIC (Special Integrated Circuit) tech-
nology for electronic
• throttle control and a smooth voltage
waveform
• For use indoors and outdoors (52120
only)
• Safety connectors for wires up to
2
0.5 mm
• Low heat generation
• Short circuit sensor
• Use with High-Output AC Trans former
or any LGB power supply, AC or DC
• Specifications
• 52120: Base dimensions:
175 x 115 mm
• 52121: Dimensions: 108 mm x 80 mm,
installation depth: 50 mm
• Input voltage: 15-18V AC. or 24V DC
max.
• Output voltage: 24V DC max.
• Output current: 5A DC max.
THE PROGRAM
With this product, we recommend the
following items:
- 50110 AC Transformer, 230V, 24V, 5A
- 50111 AC Transformer, 110V, 24V, 5A
- 50160 Track Power Cable
For information on the complete LGB
program, see the LGB catalog.
6
OPERATION
Installation
Mechanical
52120:
The 52120 can be installed indoors or
outdoors.
52121:
The 52121 is designed for installation
in control panels or similar applica-
tions. To install the 52121, follow these
instructions:
1. Drill a hole (diameter at least
6.5 mm, 9/32 in) for the axle of the
throttle knob. Pull the throttle knob and
the graduated dial face off the unit.
2. Drill two holes for the mounting
screws. Insert the axle of the throttle
knob from below through the hole
drilled in step 1. Use two M3 screws to
secure the throttle from above.
Attention! The screws must not pro-
trude more than 4 mm (3/16") from the
heat sink. If they protrude further or
press on the circuit board, the circuit
board will be damaged.
3. Glue the graduated dial face onto the
face of the control panel and press the
throttle knob onto the throttle.
Attention! Make sure the heat sink is
ventilated. If the throttle is installed in a
closed housing, provide adequate ven-
tilation holes. When installing several
throttles 52121 next to each other,
make sure there is a space of at least
5 mm between the heat sinks.
Electrical
The throttles can be connected to AC or
DC power from any LGB power supply.
An internal circuit automatically detects
the power type and converts it to track
power.
Connect the power supply to the termi-
nals on the right side of the throttle
(marked WS/SW). Connect the track to
the terminals on the left side (marked
RT/BL).