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Operating instructions
Version 08/10
Brushless Motor Tester
Item No.: 23 77 43
Intended use
The product consists of a brushless motor tester and different cables to connect the
rechargeable battery and motor.
The motor tester is suitable to measure model-making brushless motors, for example, of size
540 with and without Hall sensors from 2.5 turns and 2 poles (inrunner). It is also possible to
test sensorless motors, from airplane model-making with 6 poles (outrunner). For both
versions the respective presets can be selected. Motors with other pole numbers can also be
measured.
Furthermore, the tester is equipped with an „automatic function". With this function a brushless
motor can be operated in predetermined function modes.
Any other use than that described above could lead to damage to this product and involves
risks like short circuits, fire, electric shock, etc. Observe all safety instructions in these
operating instructions.
This product complies with all current National and European requirements. All included
corporate names and product descriptions are trade marks of the corresponding owner. All
rights reserved.
Safety Instructions
The warranty will be void in the event of damage caused by failure to observe
these safety instructions! We will not assume any responsibility for any
consequential damage.
We do not accept any liability for personal injury or damage to property
caused by incorrect handling or failure to observe the safety instructions.
The warranty will be null and void in such cases.
• For safety and licensing reasons (CE), unauthorised conversion and/or modification of the
device is not permitted. Do not dismantle the product there are no parts to be adjusted or
maintained. Moreover this causes the warranty to become void!
• The product is not a toy and must be kept out of the reach of children.
• The motor tester must not get damp or wet.
• Always disconnect the rechargeable battery from the motor tester after a test has been
completed.
• The motor tester can be operated with a 6-cell NiMH/NiCd rechargeable battery or a 2-cell
LiPo rechargeable battery (recommended).
• The maximum admissible load current of a motor connected to the motor tester is limited to
18 A at 8.4 V. Not observing the limit values can cause the motor tester and/or the motor to
be damaged. Warranty will become void!
• Only operate the motor tester via an accumulator pack but never via a power supply unit.
• When connecting the motor tester to an accumulator please implicitly observe the correct
polarity: red = plus and black = minus. Non-observance will damage the motor tester.
Warranty will be voided!
• Only connect a single brushless motor to the motor tester.
• The brushless motor tester is not suitable for operation of conventional electric motors with
two connections!
• Avoid blockage of the drive. The resulting currents could damage the motor and/or the motor
tester.
• Before charging the accumulator disconnect the motor tester.
• Observe that there are never any body parts or objects within the moving parts when
operating motors. Risk of injury!
• Handle the product with care. The product can be damaged if crushed, struck or dropped,
even from a low height.
• Do not leave the packaging material lying around carelessly, as such materials can become
dangerous toys in the hands of children.
When in doubt about how to connect or operate the device correctly, or should any questions
arise that are not answered in these operating instructions, contact our Technical Advisory
Service or another expert.
Connections and function keys
1.
Motor base
2.
LED display for the rotation speed of the motor
3.
Display
4.
LED display for the Hall sensors
5.
„Stop" button
6.
„Dec" button
7.
„Inc" button
8.
„Mode/Start" button
9.
Connectors for the motor and connection cables
10. Connector for Hall sensors of the motor and connection cables
11. Switch for 2- or 6-pole motors
12. Connector for power supply with connection cable
Information about operation
Function 1, determine motor data:
In order to optimally adjust motors to their intended use or to compare several motors for tuning
purposes, some technical data are required. The Voltcraft brushless motor tester facilitates
determination of these data. To measure, proceed as follows:
• Plug the three motor connection cables into the three connectors of the motor tester (fig. 1,
pos. 9). In order to always have the same test conditions the cables should always be
connected in the same order: A = blue, B = yellow; C = orange. The mentioned colours can
be found on a multitude of motor connection cables.
• Connect the test motor to these three cables using the universal clamps. When doing so
observe possible colour coding.
Slide the insulation sleeves over the plug contact to avoid short circuits.
Motors with Hall sensors have to be additionally connected to the motor tester via the sensor
connection cable for the Hall sensors (fig. 1, pos. 10). Afterwards put the test motor on the
motor base (fig. 1, pos. 1).
If the colour coding of the test motor is not identical to those of the motor tester you
are free to select the colour assignments. For traceability purposes in a possible
later test, we recommend to write down the decided colour coding.
• Plug the universal accumulator connection cable into the connector at the motor tester (fig.
1, pos. 12).
• Depending on the kind of the test motor select a basic configuration of the motor tester using
the switch „Car / Flight" (fig 1, pos. 11). For airplane model-making motors select „Flight", for
all other motors select „Car".
To measure and display the idle speed (RPM) and the revolutions per Volt (KV) the
number of poles of the test motor is relevant. Brushless motors for cars or ships are
usually high-speed motors constructed with a bipolar anchor. The switch position
„Car" is intended for such bipolar motors.
The values in the display indicating the idle speed (RPM) and the revolutions per
Volt (KV) correspond to the actual values of such motors. Using the switch position
„Flight" only results in correct display values with a 6-pole anchor motor.
If the motor to be measured has more than 2 („Car") or 6 („Flight") poles the display values
of speed (RPM) and revolutions per Volt (KV) will not match the actual speed of the motor
and will have to be calculated.
Fig. 1
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