Sevcon Dragon8 - Output Ratings and CAN Interface

System design
Doc. # 177/52705
Rev. 1.0
27
Output ratings*
Voltage
1 hour current
Peak current (2 mins)
Boost current (10s)
72V
130Arms
400Arms
500Arms
96V
100Arms
325Arms
400Arms
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:
H-protocol and I-protocol are supported
J1939 compatible
Physical layer uses ISO11898-2.
Baud rates supported:
1 Mbits/s (default), 500 kbits/s, 250 kbits/s, 125 kbits/s, 100
kbits/s and 50 kbits/s.
Table 9 - CAN interface
Control inputs and outputs
Digital inputs:
3 digital switch inputs (software configurable polarity).
Active low inputs < 2V, active high inputs > Vb – 2 V
Current ~ 2mA when active
Analog inputs:
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.
Motor thermistor input
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.