Alimak ALC II User Manual

Alimak Lift Control, ALC II
Alimak lift control, ALC II, is the name of Alimak’s modular
controller. The ALC system consists of a microprocessor based
controller, equipped with a high speed pulse counter input and
a pulse encoder. The position of the lift / hoist is determined by
counting impulses generated by the pulse encoder attached to
the drive unit.
To establish a reference point, a reference cam is attached to the
mast. When travelling in the calibration mode, the controller
receives the reference points by means of a limit switch attached
to the car.
The concept behind this modular system is that the main unit
will control the lowest range of lifts. The system can expand in
one step by adding an expansion unit and thereby be able to
control most of the standard lifts and their equipment.
The prime components of the controller system is one main unit
and two expansion units.
The main car unit consists of a CPU card and one I/O card (11
inputs and 7 outputs, X11 – X14) in a common enclosure.
The CPU card is equipped with the following:
– A high-speed pulse encoder input (terminals X4:1 to X4:5).
– Two wire communication for communication with the Base
CPU unit (X8:2 and X8:3).
– Six wire communication with push-buttons/keypad and
displays (X3:1 to X3:6).
– Power inputs and outputs (X1 and X2).
– Three different communication interfaces: One RS232, a
two channel CAN-bus (X6 and X7) and a TCP/IP interface.
– A battery charger.
– 4 push-buttons for programming (Up, Down, SNL and Prog).
One I/O card, same as the one in the main unit, is placed in a
separate enclosure to be used as expansion unit (maximum
one).
The Base unit consists of a CPU card (same as the one in the
Car-CPU) in a separate enclosure. The CPU card is equipped
with the following:
– Two wire communication for communication with the Car
CPU unit (X8:2 and X8:3).
– Six wire communication with the landing equipment (X3:1
to X3:6).
– Power inputs and outputs (X1 and X2).
– Three different communication interfaces: One RS232, a
two channel CAN-bus (X6 and X7) and a TCP/IP interface.
ALIMAK 34184 - 1/08
A 1
Pulse encoder

Alimak ALC II Specifications

General

Brand	Alimak
Model	ALC II
Category	Controller
Language	English