Dynamic RHINO2 User Manual

Chapter 4: Programming the Rhino2
85
4.4.5 Motor Management
4.4.5.1 Motor Protection
Parameter
Possible Values
Default
HHP
Lite
Std
Adv
Motor Protection
No / Yes
No



Motor Protection is a function that calculates the approximate temperature of the motor by
measuring the motor current over time. If the calculated motor temperature becomes too
high, the current output of the RHINO2 is reduced to protect the motor from burning out.
Note:
This function assists in motor protection. However, it cannot completely prevent
the motor from burning out. The motor may last longer, but specific conditions
can still burn out a motor, even with Motor Protection activated.
The motor protection function operates in parallel with other current control
functions and so the actual current limit will be determined by whichever process
requests the lowest operating current.
4.4.5.2 Motor Protection Parameters
Parameter
Possible Values
Default
HHP
Lite
Std
Adv
Motor Continuous Current
90A (DS90)
120A (DS120)
160A (DS160)
36A (DS90)
48A (DS120)
64A (DS160)

Motor Heating Time
1 - 255s
20s

Motor Cooling Time
4 - 1020s
32s

These parameters are only used if Motor Protection is set to 'Yes'.
Adapt these parameters to match the motor that is fitted on the scooter. See the motor
specifications given by the motor manufacturer for the correct values.
Motor Continuous Current is the current at which the motor can run continuously without
becoming too hot.
Motor Heating Time is the time that the motor can run at the programmed Current Limit
(4.4.5.9) before it becomes too hot. If the motor current has been close to Current Limit for
Motor Heating Time seconds, the current is limited to Motor Continuous Current so the motor
can cool down.
Before the current can reach the Current Limit value again, the motor current must stay
below the value of Motor Continuous Current for Motor Cooling Time seconds.
Note:
The time before the motor protection current limit is activated depends on the
actual motor current. Motor Heating Time is the time that the motor can take
the full Current Limit current before it becomes too hot. If the actual motor
current is above Motor Continuous Current but much lower than Current Limit,
the time before the motor protection limit is activated is longer.

Dynamic RHINO2 Specifications

General

Brand	Dynamic
Model	RHINO2
Category	Controller
Language	English