Operational Manual Plettenberg Motor control MST-60-80 V5.1
S. 6
4 Mounting and connection rules:
If the controller is mounted in a closed case, the warm air must be replaced accordingly or
cooled. At 80A phase current the dissipated heat is about 15W.
On the top are five terminals with M3 threat (Max. torque is 1.3Nm), three of them are for
the motor phase connections and two for battery plus and battery minus. There is also the
6 pole sensor connector and the 12 pole control connector on the top.
The motor phase A should be connected with the red motor phase at Plettenberg motors.
The motor phase B should be connected with the white motor phase at Plettenberg motors.
The motor phase C should be connected with the blue motor phase at Plettenberg motors.
Caution: The sum of all battery cables (plus and minus) should be less than 1m. If several
batteries are connected in series, the length of the connecting cables between the battery
packs must be added to the battery cable length. For example, if you use 33cm battery
cables length for the MST60-80 you have 100cm – 2 x 33cm = 34cm total cable length left
for the battery pack. The allowed cable length depends also on the current, so if you are
using the controller at higher currents than the nominal current, the allowed cable length is
shorter. At 140A full throttle current the allowed cable length is 58cm, resulting in 29cm
plus and 29 cm minus total.
Warning: Exceeding the permissible length of the battery wiring, the motor controller may
be damaged. The motor controller is not protected against reverse polarity. If the battery is
reversed, the motor controller may be damaged. Use an appropriate fuse (eg Littelfuse
BF1 58V 100A 142.5631.6102, 142.7010.6102, MEGA-fuse 58V 100A) between the
battery pack and controller. As a safety disconnect switch (emergency stop) we
recommend Tyco Electronics KILOVAC EV100 and KILOVAC EV200 series.
A protective diode must be installed which, when the connection between the battery and
the control unit is interrupted, draws the stored energy from the motor inductivity into the
battery if current flows through the motor. The protective diode must be installed in parallel
with the serial circuit fuse and safety disconnect switch. Anode to plus motor controller and
cathode to battery plus. We recommend a VS-100BGQ100 or STPS80170CW diode to
archive the best protection.
Warning: Never operate the controller with significant load on a power supply without
permission from us. At partial throttle the input current of the controller could have high
current spikes, which could cause overvoltage spikes, if using a power supply instead of a
battery. These spikes can destroy the motor controller and/or the power supply. Never use
the brake function, if using a power supply. At braking the energy is feed back to the power
supply, the resulting overvoltage may destroy the power supply and/or the controller.
Reversing the direction: If you want to reverse the direction of rotation, swap the sensor
cable A and B and the motor phases B with C.
Please note that the possible cable length of the RS232 cable depends on the used line
driver and the used cable. At cable length over 2m we recommend a shielded CAT5 cable
for the RS232 connection.
