© ElectroCraft 2022
19
High Power Universal Drive User Manual
4.3.11 USB Communication
Parameter
Conditions
Type
USB Interface
USB micro type B female
USB 2.0b
4.3.12 CAN
Parameter
Conditions
Min.
Typical
Max.
Units
CAN Enable Out
Output Voltage
Internal Supply
Operational Range
4.95
5.1
5.25
V
External Supply Absolute Maximum
-
-
5.25
CAN Enable Out
Output Current
Sinking
Absolute Maximum
-
-
200
mA
CAN Enable In+
Input Voltage
CAN Enable In-
pulled to GND
Logic High
3.3
-
-
V
Logic Low
-
-
1
Absolute maximum
-48
-
48
4.4
De-rating
The drive is protected against overheating. The protection mechanism employed is to shut off current to
the motor when the drive internal temperature reaches the maximum limit. The thermal performance of
the drive is dependent on the application and the environmental conditions. This section provides
guidance for application of the drive within the recommended operating conditions referenced in this
manual. However, thermal performance of the drive is dependent on the specifics of the application and
the environmental conditions.
The drive temperature derating for different PWM frequencies in the ambient temperature range of 0 to
40°C and supply voltage of 80VDC is shown in Figure 6, when mounted according to ElectroCraft
recommendations as specified in section 5.1. Improved derating can be achieved by limiting the supply
voltage. Operating the drive outside ElectroCraft recommendations or in a closed box and stagnant air
may limit maximum performance. Use of additional heatsinking or forced air may be required. For
applications outside ElectroCraft recommendations or in ambient temperature outside the limit of 0 to
40°C, please contact ElectroCraft.
R
at
ed
C
o
nt
in
uo
u
s
C
ur
re
nt
(
A
)
Temperature (°C)
24
5
15
10
20 25 30 35 40
20 kHz Output PWM
Frequency
40 kHz Output PWM
Frequency
16
20
12
8
4
80 kHz Output PWM
Frequency
Figure 6: Drive temperature derating at 80VDC
