Output Ratings; Can Interface; Control Inputs And Outputs - Sevcon Dragon8 Applications Reference Manual

Output ratings*

Voltage 1 hour current
72V 130Arms
96V 100Arms
Table 7 - Output Ratings
* Based on 25C ambient
Table 8 - Output RatingsPower outputs in the above tables are approximate maximums. The actual power
achieved will depend on modulation index, power factor and motor efficiency.

CAN interface

CAN protocol:
Baud rates supported:
Table 9 - CAN interface

Control inputs and outputs

Digital inputs:
Analog inputs:
Motor thermistor input
Doc. # 177/52705
Rev. 1.0
Peak current (2 mins)
400Arms
325Arms
H-protocol and I-protocol are supported
J1939 compatible
Physical layer uses ISO11898-2.
1 Mbits/s (default), 500 kbits/s, 250 kbits/s, 125 kbits/s, 100
kbits/s and 50 kbits/s.
3 digital switch inputs (software configurable polarity).
Active low inputs < 2V, active high inputs > Vb – 2 V
Current ~ 2mA when active
2 general purpose inputs which can be used for 2-wire
potentiometers or dual throttle type devices:
•
0 to 10V input
•
10 bit resolution
•
Input resistance > 50kΩ
All analog inputs can also be used as digital inputs.
A motor thermistor (e.g. KTY84) can be connected between the
analogue input and control OV
•
Internal excitation for the thermistor
•
When configured with a KTY84: –
Accuracy ±5°C
Measurement range will be -40°C to +200°C
•
Configurable to use a user defined characteristic.
System design
Boost current (10s)
500Arms
400Arms
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