2 basic description, 3 main components, The main components are – R&M Materials Handling VARIABLE SPEED CONTROLS ControlMaster Select Service Manual User Manual
Page 5: The most important external components are, Example layout

R&M Materials Handling, Inc.
4501 Gateway Boulevard
Springfield, Ohio 45502
P.: (937) 328-5100
FAX: (937) 325-5319
5/46
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
2.2 Basic description
Inverter
The specific crane features for the inverter hardware and the special software are achieved by combining the
experience and know-how of crane applications with the latest technology.
Crane user interface
Interface with pre-designed locations for typical crane functions. The main part of this interface is carried out
by a terminal strip, which has separated sections for signals with main, control and electronics voltage levels.
Brake control
Includes the brake contactor for disk brakes.
Electrical Braking
Includes a braking transistor and a braking resistor.
Control modes
Can be controlled by
the electronic potentiometer control with 2-step or 3-step pushbuttons,
the multistep control with 2-5-step controllers.
the automation control using any control device with an 0-10V output (computer, radio, PLC)
Limit switch functions
Built-in slowdown (S11, S21) or stop limit switch (S12, S22) functions for both running directions.
Protections
Includes a motor thermal protection, which is based on motor temperature measurement by Klixon placed in
motor windings. A great number of other protections included are shown in the technical data.
2.3 Main
components
The main components are:
A1 Inverter
F7
Brake supply circuit breaker
K7 Brake
contactor
R1 Braking
resistor
unit
Z1, Z2, Z3
Ferrite rings (Depending on EMC level, optional)
CM1
Filtering capacitors (Depending on EMC level, optional)
X1 Terminals
The most important external components are:
M1 Traveling
motor(s)
Y1 Mechanical
brake
B6
Thermal sensor for motor protection
Control devices (switches, pushbuttons etc.)
S11, S21, S12, S22
Limit switches
Example layout
F7
K7
X1
Z2 Z3
Z1
CM1
A1