Under Voltage Disconnection; Cooling/Fixing; Part Load Capability; Active Freewheeling Circuit - Kontronik Jive Bedienungsanleitung

4.4

Under voltage disconnection

Dependant on the mode set the JIVE ESC includes
an automatic under voltage disconnection. It
switches the motor off if the battery pack is on low
capacity (appr. 0.8V/cell in NiMH mode). The motor
can be switched on again, by pulling the throttle
into motor-off position and then pushing it forward
again.
!
Please note the changed under voltage
disconnection (2,7-3V/cell), if LiPo Mode is
active!
4.5

Cooling/Fixing

Sufficient cooling increases efficiency and lifespan
of the ESC. The JIVE ESC improves performance
with increased cooling. If the JIVE ESC is fixed on
the model leave the cooling plate uncovered.
4.6

Part load capability

Due to its active freewheeling circuit the JIVE ESC
can be operated in part load conditions if at full
throttle and full load the battery current does not
exceed the JIVE continuous current limit. (e.g.
JIVE 80 LV < 80A).
4.7

Active freewheeling circuit

To optimize the efficiency at part load and to
reduce heating the JIVE ESC features an active
freewheeling circuit. The active freewheeling
circuit cannot be used at very little load. Very little
load may result in a short discontinuity of the
motor RPM.
4.8

Sensorless Commutation

JIVE ESCs work without sensors inside the motor
via a 3D recognition system. Commutation of the
motor will automatically be optimized to the
application. Thus the JIVE cannot detect the motor
position at zero RPM. Therefore little motor
oscillation during start is possible.
4.9

Variable beat frequency

JIVE ESCs vary beat frequency between 8 and 32
kHz. The actual beat frequency depends on the
motor data and actual load. Due to optimal
adjustment the motor always works at the point of
best efficiency.
16
5

Connection of cables

Jumper
5.1

Connection to Receiver

Due to 5A continuous current and 15A peak
current JIVE ESCs allow the use of high
performance digital servos. To provide full BEC
power all JIVE ESCs feature two BEC connectors
which have to be used obligatory at power greater
than 2A. The master connector must be plugged to
the thottle channel. The slave connector can be
plugged in to each unused receiver channel (even
a battery port). The KONTRONIK BEC cable is
available (# 9250).
5.2

Motor cables

The sequence is arbitrary. The motor rotation will
be reversed by changing 2 motor cables (see also
mode programming Mode 7).
Motor sensor cables are not used.
!
Use polarized connectors for battery cables
only! Connecting the battery with reverse
polarity will destroy the ESC.
Receiver (free channel
or battery port)
Receiver (Throttle-
channel)