HETRONIC RX BMS2-PWM User manual

YOUR #1 PARTNER IN RADIO REMOTE CONTROLS
Operator Manual
Hetronic USA
4300 Highline Blvd., Bldg. A
Oklahoma City, OK 73108
405-946-3574 Fax [phone]
OPMN_BMS2_0001.0
12/04
www.hetronic.com
Hetronic Canada
45 Sinclair Avenue
Halton Hills, Ontario L7G 4X4
[phone] Fax [phone]
© 2004 Hetronic, Inc.
All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language in any form by any means without the written permission of Hetronic.
BMS-2 System
RX BMS2-PWM
RX BMS2-VC

2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
The Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Production and System Numbers . . . . . . . . . . 3
Unauthorized Replacement Parts . . . . . . . . . . 3
Before Attempting to Operate This System . . . 3
System Components . . . . . . . . . . . . . . . . . . . . 4
RX BMS2-PWM Standard Features . . . . . 4
RX BMS2-VC Standard Features . . . . . . . 4
Theory of Operation. . . . . . . . . . . . . . . . . . . . . 4
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Notations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Practices and Laws . . . . . . . . . . . . . . . . . . . . . 5
Required Operator Training . . . . . . . . . . . . . . . 5
Possible Sources of Danger . . . . . . . . . . . . . . 5
Operation and Work Area Safety . . . . . . . . . . . 6
Protective Features . . . . . . . . . . . . . . . . . . . . . 6
To Stop In An Emergency . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mount the Receiver . . . . . . . . . . . . . . . . . . . . . 7
Install Receiver and Output Wiring . . . . . . 7
Mount the Actuators (Optional) . . . . . . . . . 8
Attach Wiring Harness (Optional) . . . . . . . 8
Connect Electrical Wiring . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Holding the Transmitter . . . . . . . . . . . . . . . . . . 8
Visual Check . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start-Up Procedure . . . . . . . . . . . . . . . . . . . . . 9
Emergency Stop . . . . . . . . . . . . . . . . . . . . . . . 9
Safe Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Safety (Dump) Valve . . . . . . . . . . . . . . . . . . . . 9
Proportional Functions . . . . . . . . . . . . . . . . . . 10
Joysticks or Paddle Levers . . . . . . . . . . . . . . 10
Option Controls . . . . . . . . . . . . . . . . . . . . . . . 10
Transmitter Shutdown . . . . . . . . . . . . . . . . . . 10
Optical Displays and Acoustic Signals. . . . . . 10
Transmitter . . . . . . . . . . . . . . . . . . . . . . . 10
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . 10
System Features . . . . . . . . . . . . . . . . . . . . . . 10
Receiver Display . . . . . . . . . . . . . . . . . . . 10
Speed Reduction/Speed Select. . . . . . . . 11
Ramp Function . . . . . . . . . . . . . . . . . . . . 11
Interlocking Functions . . . . . . . . . . . . . . . 11
Dead Man Function . . . . . . . . . . . . . . . . . 11
Hold Function . . . . . . . . . . . . . . . . . . . . . 11
Optional Feedback . . . . . . . . . . . . . . . . . 11
Optional Cable Back-up. . . . . . . . . . . . . . 11
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Quick-Set System . . . . . . . . . . . . . . . . . . . . . 12
Function Speed Adjustment . . . . . . . . . . . . . . 12
Hetronic Proprietary Software . . . . . . . . . 13
Frequency and Address Settings. . . . . . . . . . 13
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 14
Diagnostic Panel Display Codes. . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation / Safety Data Sheet . . . . . . . . . . . . . 18
Definitions & Metric Conversions . . . . . . . . . . . 19
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TABLE OF CONTENTS

3
INTRODUCTION
Thank you for purchasing the Hetronic radio remote
control system. Hetronic radio remote controls are the
highest caliber in remote control value, performance
and safety.
Hetronic radio remote controls use the latest frequency
synthesizer technology to eliminate the problems
typically associated with radio remote control systems.
THE MANUAL
Before operation of unit, carefully and completely read
your manuals. The contents will provide you with an
understanding of safety instructions and controls
during normal operation and maintenance.
The BMS-2 System is used with several different
transmitter types. For this reason, the photos or
illustrations of transmitters in this manual may not show
the transmitter purchased with this system. Please
refer to the technical documentation for your specific
transmitter for control panel layout and operational
instructions.
PRODUCTION AND SYSTEM NUMBERS
When contacting your dealer or Hetronic about service,
repair or replacement parts, know the Production and
System numbers of the transmitter and receiver.
The numbers are located on the label that is affixed to
the unit itself.
Record the Production and System numbers here:
UNAUTHORIZED REPLACEMENT PARTS
Use only Hetronic replacement parts. The replacement
of any part with anything other than a Hetronic
authorized replacement part may adversely affect the
performance, durability, and safety of this system and
may void the warranty. Hetronic disclaims liability for
any claims or damages, whether warranty, property
damage, personal injury or death arising out of the use
of unauthorized replacement parts.
BEFORE ATTEMPTING TO OPERATE THIS
SYSTEM:
1. Make sure all installation has been properly
completed.
2. ALWAYS be sure the crane/machine and radio
remote control Emergency-Stop functions work
properly before beginning any crane/machine
operation.
3. Understand all Safety Precautions provided in the
manuals.
4. Review control functions and operation of the
machine and this radio remote control system.
5. Surge suppressors (RC type only) must be used
when the receiver is controlling magnetic
contactors.
6. When not in use, turn the transmitter off and store
in a safe place to prevent unauthorized use.
7. If the crane/machine does not respond properly,
stop operation immediately. Turn off the
transmitter and report the condition to the
appropriate technician or supervisor.
8. Turn off the transmitter and remove the battery
before any maintenance work is done.
IMPORTANT: AVOID SYSTEM DAMAGE - ALWAYS
disconnect receiver power supply and control wiring
before welding on any part of the crane/machine.
9. Turn off the transmitter when changing the
battery or taking a break.
1
23
5
4
1. Specific approvals such as BTZ, FCC, CE, etc.
and the RF Unit.
2. The type of transmitter or receiver.
3. Frequency channel.
4. Production Number - The first digit indicates the
manufacturing facility (1=H-Germany, 2=H-Malta,
3=H-US, 4=H-Italy). The next four digits are the
production month and year. The last 6 digits are
the system address.
5. System Number - The Hetronic Part Number of
the transmitter or receiver.
Transmitter Type
Transmitter Production Number
Receiver Production Number
System Number
INTRODUCTION

4
10. Always have batteries in the battery charger to
ensure the availability of fully charged batteries.
11. Installation, setup and service must be performed
by authorized personnel only.
12. Use only Hetronic spare parts.
HETRONIC SYSTEM COMPONENTS
The Hetronic radio remote control system consists of a
receiver and transmitter with belt, battery charger, and
two rechargeable batteries.
RX BMS2-PWM Receiver Standard Features
• 1 E-Stop output
• 1 safety valve output
• 11 hardwired digital outputs
• Expansion of up to 16 additional digital outputs
• 8x2 PWM outputs
• 6 digital inputs
• CAN interface for control and feedback
• RS232 interface for cable control, programming
• Expanded self-diagnostics with 3 segment LED
display
• Back-up cable control interface with sure seal
connector
• 12VDC or 24VDC supply power for DC
cranes/machines
• Built-in Hetronic 70 pin quick disconnect
connector
• External antenna
RX BMS2-VC Receiver Standard Features
• 1 E-Stop output
• 1 safety valve output
• 11 hardwired digital outputs
• Expansion of up to 16 additional digital outputs
• 8 analog outputs
• 8 switching outputs for valve power supply
• 6 digital inputs
• 8 error inputs for Sauer-Danfoss valve
• CAN interface for control and feedback
• RS232 interface for cable control, programming
• Expanded self-diagnostics with 3 segment LED
display
• Back-up cable control interface with sure seal
connector
• 12VDC or 24VDC supply power for DC
cranes/machines
• Built-in Hetronic 70 pin quick disconnect
connector
• External antenna
THEORY OF OPERATION
The BMS-2 is the Hetronic designation for a receiver
with specific functions and capabilities. The system
transmitter generates the electronic signal that
communicates with the receiver. Several different
Hetronic transmitter types can be used with this
system.
•GR
•GL
•GL-3
• Nova-S
• Nova-M
• Nova-L
• Nova-XL
Hetronic radio remote control systems operate in the
400-470 MHZ range (70 cm band). The transmitter and
receiver are set with identical address codes and
frequency channels. This allows operation of multiple
systems within the same area without signal
interference.
Some of the key features of the BMS-2 System are:
• Double Monitored E-Stop
• Optional Feedback Function
• CAN or RS232 Interface
• Setup/Adjustment Software
• Quick-Set Function
• Receiver Status Display
E-Stop Function
The most important feature of the radio remote control
system is the E-Stop. The transmitter sends the E-stop
status signal along with the specified crane/machine
function. This method confirms that ongoing operations
are safe. If the E-stop pushbutton is pressed, the
E-stop relay circuitry in the receiver causes all
crane/machine motions to stop. The receiver goes into
Safe mode.
The BMS-2 receiver display will show "0 0 2" indicating
an active E-Stop condition.
To restart the system, disengage the E-stop button and
press the Start button.
The E-Stop responds faster than any other function.
When E-Stop is engaged, the system ignores any other
signal that is transmitted. E-Stop must be disengaged
before the system will respond to any other signal.
The E-Stop is self-monitoring and redundant in the
transmitter and receiver. The system performs a
self-test to ensure the E-Stop circuit is working
properly. If an error is detected, the system
automatically goes into Safe mode.
The BMS-2 receiver display will show "0 0 1" indicating
an E-Stop condition in the receiver.

5
When the transmitter is turned on, it performs a
self-test to be sure that the circuitry is within
designated parameters. If an error is detected, the
transmitter will not transmit any motion signals.
The BMS-2 receiver display will show "0 0 4" indicating
a passive E-Stop condition in the transmitter.
Receiver Safe Mode
The following conditions cause the receiver to go into
its Safe mode:
• Radio signal interference
• Transmitter out of operating range
• E-Stop button is activated
• E-Stop circuit failure
• Low battery sends E-stop after time out
When the transmitter is turned off, the Time Out
process begins. The Time Out period is set to 450
msec at the factory. If the receiver does not establish
contact with the transmitter within that time period, it
goes into the Safe Mode. In Safe Mode, the receiver
shuts off power to the output modules and activates the
E-stop function.
The BMS-2 receiver display will show "0 0 1" indicating
an E-Stop condition in the receiver.
NOTE: For descriptions of other display codes, see the
Operation Section of this manual, the Diagnostic
Display Codes table on page 16, or the technical
documentation supplied with your radio remote control
system.
SAFETY ALERTS
Look for this symbol to point out
important safety precautions. They
mean:
Attention!
Personal Safety Is Involved!
Become Alert!
Obey The Message!
The safety alert symbol is used in decals on the unit
and with proper operation procedures in this manual.
Understand the safety message. It contains important
information about personal safety on or near the unit.
NOTATIONS
NOTE: General reference information for proper
operation and maintenance practices.
IMPORTANT: Specific procedures or information
required to prevent damage to unit or attachment.
PRACTICES AND LAWS
Practice usual and customary safe working
precautions, for the benefit of yourself and others.
Understand and follow all safety messages. Be alert to
unsafe conditions and the possibility of minor,
moderate, or serious injury or death. Learn applicable
rules and laws in your area.
REQUIRED OPERATOR TRAINING
Original purchaser of this unit was instructed by the
seller on safe and proper operation. If unit is to be used
by someone other than original purchaser; loaned,
rented or sold, ALWAYS provide this manual and any
needed safety training before operation.
ALWAYS review the operators manual of any machine
to be controlled by radio remote control.
POSSIBLE SOURCES OF DANGER
This system makes remote control via radio signals
possible. However, the transmission of control
commands can take place around obstacles and out of
the operator’s direct sight. To prevent accidental
start-up and possible injury or damage:
1. Always engage the E-stop button and switch
"OFF" the transmitter when it is not in use.
Remove the key if the unit is placed any distance
away from the operator.
2. Disconnect the power supply from the receiver
before any assembly, maintenance or repair work
is done.
IMPORTANT: AVOID SYSTEM DAMAGE - ALWAYS
disconnect receiver power supply and control wiring
before welding on any part of the crane/machine
3. Never remove or alter any of the safety features
of this system.
4. ALWAYS be sure the crane/machine and radio
remote control Emergency-Stop functions work
properly before beginning any crane/machine
operation.
SAFETY
DANGER: IMMINENTLY HAZARDOUS
SITUATION! If not avoided, WILL RESULT in
death or serious injury.
WARNING: POTENTIALLY HAZARDOUS
SITUATION! If not avoided, COULD RESULT
in death or serious injury.
CAUTION: POTENTIALLY HAZARDOUS
SITUATION! If not avoided, MAY RESULT in
minor or moderate injury. It may also be used
to alert against unsafe practices.

6
OPERATION AND WORK AREA SAFETY
The work area must be free from obstacles, debris or
other tripping hazards. Avoid uneven work areas and
any rough terrain. Always be sure of your footing.
Be aware of overhead obstacles that may interfere with
machine operation.
If a belt or strap is provided with your transmitter, use it
at all times.
PROTECTIVE FEATURES
This radio remote control system is equipped with
electronic and mechanical safety features. Processing
of control signals transmitted from other transmitters is
not possible, since transmission coding is unique to
each system.
These safety features help protect the operator, as well
as others within the work area. The machine functions
can be stopped by pushing the emergency stop button
on the transmitter control panel (EMERGENCY STOP).
NOTE: The e-stop command is transmitted within
approximately 0.5 seconds (450 ms) after the switch is
turned to the "OFF" position.
TO STOP IN AN EMERGENCY
1. Press the red "EMERGENCY STOP" pushbutton.
2. Turn the key to "OFF".
3. Wait for all moving machine parts to stop.
4. Refer to machine’s operator manual for further
instructions.
MAINTENANCE
Always shut off power to the machine and the radio
remote control system transmitter and receiver before
any assembly, maintenance or repair.
IMPORTANT: AVOID SYSTEM DAMAGE - ALWAYS
disconnect receiver power supply and control wiring
before welding on any part of the crane/machine.
MOUNT THE RECEIVER
Install Receiver and Output Wiring
Select a position for the receiver so that the display is
easily visible, accessible and that provides protection
from violent impact from debris or thrown materials.
The receiver housing is rated IP65 and is protected
against penetration of dust and moisture. Therefore,
weather and elements should not be the primary
concern when installing the receiver.
Four mounting holes are required when installing the
receiver unit. The drill pattern and recommended
hardware are shown in the following illustration.
If the receiver includes an attached antenna, mount the
receiver so that the antenna points straight up. The
area around the antenna should be free of
obstructions, especially metal.
WARNING: Accidental start-up can cause
serious injury or death. NEVER remove or
modify any safety feature.
Typical
Pushbutton Stop
Emergency
INSTALLATION
WARNING: FAILURE TO FOLLOW
INSTRUCTIONS could result in personal
injury and/or damage to equipment. Read and
understand the safety instructions in all
manuals provided.
DRILL PATTERN
Drill 4 holes 9/32" (7mm).
Use 1/4" or 6mm bolts.
4.57"
(116 mm)
9.13"
(232 mm)

7
Be sure that the Diagnostic Display panel is clearly
visible.
The receiver wiring is critical for proper system
operation. Make all connections with good quality
contacts or solder joints to ensure proper electrical
contact.
Supply voltage and ground wiring are crucial and must
be connected to reliable connecting circuitry. Do not
use a chassis ground for this equipment. The ground
wire must be connected directly to the vehicle battery
negative post.
IMPORTANT: Power supply wiring must be at least
AWG 12 to prevent power drop.
The output control signals to the proportional control
valves should be routed separately from any wiring that
could produce transient voltage interference.
Interference or "induced voltage spikes" could cause
erratic performance of the proportional controls.
Mount the Actuators (Optional)
Mount and attach the actuators to the hydraulic valves
or to the mechanical linkage with the brackets supplied.
Attach Wiring Harness (Optional)
Plug the wiring harness into the receiver and into the
corresponding actuators.
Connect Electrical Wiring
Connect all remaining wires (power supply, engine
start-stop, etc.) according to the wiring diagram of the
crane/machine and the radio remote control.
8.29"
(210.5 mm)
9.72"
(246.8 mm)
6.40"
(160.0 mm)
1.00"
(25.0 mm)
4.25"
(106.3 mm)
Antenna must
be vertical
(pointing up).
Area must be
free of
obstructions
Diagnostic
Display Panel
4.25"
(106.3 mm)
6.38"
(162 mm)
4.47"
(113.5 mm)
1.00"
(25.0 mm)
1.00"
(25.0 mm)
Area must
be free of
obstructions
Do not block
visibility of
diagnostic
panel.

8
HOLDING THE TRANSMITTER
Hold the transmitter with the control panel facing you.
Be sure that you are able to easily read any text and
understand operation symbols. If your transmitter
contains a Tilt Sensor Switch, be sure it is not activated
or the transmitter will not start.
If a belt or strap is provided with your transmitter, use it
at all times. The belt or strap is designed to reduce
stress and increase safety.
The safety checks described in the following
paragraphs must be completed before the radio remote
control system is activated. These checks must be
performed at least once a day, before the start of any
operation and at all shift changes.
IMPORTANT: A transmitter drawing is included with
each system. Transmitter layout and inscriptions may
vary according to customer requests.
VISUAL CHECK
Always check the transmitter for any physical damage
before any operation.
• Always keep safety features, guards and controls
in good repair, in place and securely fastened.
• Check equipment for wear or damage.
• Check rubber cuffs and pushbutton caps for wear
or damage.
IMPORTANT: Never operate a transmitter with worn or
damaged parts. Replace immediately with only
Hetronic parts. Contact Hetronic or your Dealer.
START-UP PROCEDURE
This procedure must be carefully followed before
beginning any operation.
1. Be sure that all safety measures required by the
equipment manufacturer have been followed. (i.e.
crane level, stabilizers down, etc.)
2. Be sure the transmitter battery is fully charged.
3. Be sure that power is supplied to the receiver.
The receiver display should read "0 0 4".
4. Push in the transmitter E-stop pushbutton.
5. Be sure that all controls, joysticks or paddle
levers are in the Off (neutral) position.
NOTE: If any control, joystick or paddle lever is NOT in
the Off (neutral) position when the Start/Horn button is
pushed, the transmitter will not transmit.
6. Switch the transmitter "ON". A short buzzer signal
will sound.
7. Wait for the second buzzer signal (approx. 3
seconds).
8. Press the Start/Horn button again.
9. The green LED on the transmitter control panel
will flash.This indicates that the transmitter is
working and is ready to use. The receiver display
should read "0 0 2".
10. Disengage the E-stop pushbutton. The receiver
display should now read "0 0 0".
11. Push the green "Start/horn" pushbutton on the
transmitter.
12. Check that the machine functions correspond
with the transmitter functions. The receiver
display will change according to which motion is
activated.
IMPORTANT: The machine functions will operate
during this check. Be certain that there are no
obstacles near the machine.
13. Push the "EMERGENCY STOP" pushbutton on
the transmitter. Be sure that no functions can be
activated with the "EMERGENCY STOP"
pushbutton depressed. The receiver display
should again read "0 0 2".
IMPORTANT: If any function of the radio remote
control activates with the "EMERGENCY STOP"
engaged, the radio remote control must not be used
until it is repaired.
14. Pull out the "EMERGENCY STOP" pushbutton.
15. Push the green pushbutton "Start/horn" on the
transmitter.
16. Both the radio remote control and the machine
are now ready for operation.
OPERATION
WARNING: FAILURE TO FOLLOW
INSTRUCTIONS could result in personal
injury and/or damage to equipment. Read and
understand the safety instructions in all
manuals provided.
WARNING: FAILURE TO FOLLOW
INSTRUCTIONS could result in personal
injury and/or damage to equipment. Always
hold the transmitter in the proper orientation.
Holding the transmitter improperly while
operating the crane/machine could result in
unexpected crane/machine response.
WARNING: FAILURE TO FOLLOW
INSTRUCTIONS could result in personal
injury and/or damage to equipment. Test the
"E-STOP" function as described in the
crane/machine manufacturer’s operator
manual before beginning any operation.

9
IMPORTANT: To avoid accidental start-up, always
engage the E-stop pushbutton and switch the
transmitter "OFF" when not in use. When the
transmitter is not attached to the operator, the key
switch should be removed and stored in a secure
place.
EMERGENCY STOP
For all emergency situations, push the E-Stop
pushbutton in. To restart the system, disengage the
E-Stop pushbutton and press the Start/Horn
pushbutton. Be sure any dangerous conditions are
corrected and follow the Start Up Procedure above.
SAFE MODE
When the transmitter battery voltage drops below
approximately 3.4 volts, the system signals a low
battery condition. The factory setting is 10 minutes to
locate the crane/machine in a safe position and turn
the transmitter off. When 9 minutes have passed, the
buzzer activates. There is then one minute remaining
before the system automatically goes into Safe Mode.
At the end of the timeout period, the transmitter sends
the E-Stop signal and all crane/machine motion
commands are stopped.
To restart the system, a fully charged battery must be
inserted into the transmitter. Proceed with startup
instructions. Always place the discharged battery
directly into the charger.
If transmitter start-up is attempted with a discharged
battery (less than 3.1 V), the system will shut down
within 2 seconds after detecting the E-stop signal. This
safeguard helps ensure the transmitter has enough
power to safely operate the crane/machine.
SAFETY (DUMP) VALVE
The BMS-2 provides an output which is activated every
time a joystick/paddle is moved out of the neutral
position. This output should be connected to the safety
(dump) valve to ensure that there is no hydraulic
system pressure when the system is in standby mode
(joystick/paddle in neutral position).
PROPORTIONAL FUNCTIONS
The proportional functions and speed ranges are set
with the Hetronic proprietary software included with
your system. You can modify the adjustments at any
time. Please refer to the software technical
documentation that is specific for your system.
JOYSTICKS OR PADDLE LEVERS
Joysticks and paddle levers are equipped with a spring
return to the center (OFF) position. If the
crane/machine motion is multi-speed, the farther the
lever is pushed, the faster the crane/machine motion
will move. Return the lever to the center position to
stop the crane/machine motion.
OPTION CONTROLS
Each transmitter can be equipped with a variety of
rotary switches, toggle switches or pushbuttons. Each
function is labeled. For specific operational
instructions, refer to the technical documentation
supplied with your transmitter, or contact Hetronic.
TRANSMITTER SHUTDOWN
To shut down the transmitter, turn the key switch to
OFF. Remove the key and place it in a secure location
to prevent unauthorized or unintentional use.
OPTICAL DISPLAYS AND ACOUSTIC
SIGNALS
The radio remote control system uses optical displays
and acoustic signals to show current working status.
Transmitter
1. Turn keyswitch to "ON".
2. One long acoustic signal (buzzer) sounds.
3. After the self-test routine, another buzzer sounds
to indicate that the system is ready to operate.
4. Then press the Start/Horn button to begin system
operation.
NOTE: If the Start/Horn button is pressed before the
second buzzer, the system will not start up.
During transmitter operation, a buzzer signal indicates
when the battery is nearly discharged. The transmitter
will operate for another 30 seconds before going into
E-Stop. Use this time to place the crane/machine in a
safe position.
A green LED on the transmitter control panel
illuminates while the system is operational.
Receiver
The 3 digit display shows operational status and error
codes. A label on the receiver shows the basic
operational status codes.
WARNING: TO AVOID SERIOUS INJURY
OR DEATH. Switch the machine "OFF" if
there is a fault or any problems with the safety
check. Contact Hetronic or your dealer
immediately to repair the system. NEVER
operate the machine if the "EMERGENCY
STOP" function does not operate properly.
Improper operation, maintenance or
adjustment may cause serious injury or
damage to equipment and may void the
warranty.

10
SYSTEM FEATURES
Receiver Display
The receiver has a 3-digit, 7-segment display on the
outside of the housing to show operation status and
Error Codes. The following table shows basic
operational status codes. Error Codes are assigned
per specific customer requirements.
Speed Reduction/Speed Select Function
This radio remote control system is equipped with a
speed control function. It allows speed reduction to
75%, 50%, and 25% of the maximum speed using a
switch on the transmitter. Other speed select options
can be programmed with the BMS-2 software.
Ramp Function
The purpose of the Ramp Function is to allow a gradual
start or stop to a machine movement to help prevent
load or basket swing. The rate of increase and
decrease is set with the BMS-2 software.
Interlocking Functions
This feature prevents contradictory operator
commands from the transmitter. Certain functions can
be enabled or disabled when another function is
activated or inactive. An example is hoist up and hoist
down. Activating both functions would most likely
damage the equipment. Therefore, hoist up is
interlocked with hoist down so that when one is
activated the other can not be.
BMS-2: System Status Indicators
x x 0 - Normal Operation
x x 1 - System Not Started
x x 3 - Communication Error
x x 2 - Active E-Stop
x x 4 - Passive E-Stop
x x x . - Dot blinks = Telgram OK
x x . x - Dot on = Program Mode
E x x - Error Code
1 x x - Analog Channel 1 active
2 x x - Analog Channel 2 active
www.hetronic.com
... up to Analog Channel 8
001
x x 0 Receiving correct signal, no E-Stop, system
started
Example: 0 0 0 means the receiver is getting a
valid control telegram and all joysticks are in
neutral position
x x 1 Receiving correct signal, BMS-2 in E-Stop, no
E-Stop from TX
Example: 0 0 1 means the receiver is getting a
valid control telegram, all joysticks are in neutral
position, with E-Stop condition in receiver
x x 2 Receiving correct signal, BMS-2 in E-Stop,
E-Stop transmission from TX
Example: 0 0 2 means the receiver is getting a
valid E-Stop telegram and the transmitter
E-Stop is engaged
x x 3 RF interference
0 0 4 Not receiving signal, no RF communication, or
TX is turned off
0 0 0 .Flashing dot after third digit, change the status
with each correct received telegram (green
LED)
0 0 .0 Flashing dot after second digit indicates
programming mode (Quick-Set)
1 x x Analog output 1 (up to 8) activated, joystick not
in neutral position. System will not start if
joystick is not in neutral position.
E x x Error Codes are assigned numbers based on
customer requirements. See Technical
Documentation for specific codes.