Sevcon Dragon8 - Page 28

Installation
20
Table 2- I/O Pin allocation
Twisted, shielded wire is recommended. Keep signals away from power cables to avoid interference.
11
Digital
Input 2
Digital
Input 2
From digital switch input 2.
In a basic configuration this
is usually the reverse
direction switch (REV).
Type A
V = Vb
See Table 3
See table 3
12
Analogue
Input 2
Analogue
From potentiometer 2
wiper
V= 10V
Zin = 50kΩ
Suitable for potentiometers in the range
500Ω to 10 kΩ, or voltage-output
device (e.g. Sevcon linear accelerator)
0 to 5 V or 0 to 10 V.
Ensure that at least 0.5V margin exists
between the maximum valid throttle
and the wire-off threshold
13
Resolver
Cos High
Analogue
Resolver type encoder
6V peak to peak from
resolver
Shielded, twisted pair cable should be
used for resolver connections. Motor
must be set up correctly for motor
speed feedback type. Only one encoder
type can be configured at a time.
14
Resolver
Sin High
Analogue
Resolver type encoder
6V peak to peak from
resolver
Shielded, twisted pair cable should be
used for resolver connections. Motor
must be set up correctly for motor
speed feedback type. Only one encoder
type can be configured at a time.
15
CAN Low
Comms
CAN bus low signal
V = 5 V
Maximum bus speed 1 Mbits/sec. Note
that the CANbus signals are referenced
to Control 0V (pin 22).
16
Encoder W
Encoder
Encoder:
W if using UVW
Digitial input DIn6
0-5V from encoder.
Shielded cable should be used for
encoder connections. Motor must be set
up correctly for motor speed feedback
type. Only one encoder type can be
configured at a time
17
Contactor 1
output
Output
To the switched high side
of contactor or valve coil.
2.0A output
This output provides high side voltage
control to the load.
18
Digital
Input 1
Digital
From digital switch input 1.
In a basic configuration this
is usually the forward
direction switch (FWD).
Type A
V = Vb
See Table 3
See table 3
19
Analogue
Input 1
Analogue
From potentiometer 2
wiper
V= 10V
Zin = 50kΩ
Suitable for potentiometers in the range
500 Ω to 10 kΩ, or voltage-output
device (e.g. Sevcon linear accelerator)
0 to 5 V or 0 to 10 V.
Ensure that at least 0.5V margin exists
between the maximum valid throttle
and the wire-off threshold
20
Resolver
Excitation
low
Analogue
Resolver type encoder
10kHz, 10V pk-pk
(max) to encoder
Shielded, twisted pair cable should be
used for resolver connections. Motor
must be set up correctly for motor
speed feedback type. Only one encoder
type can be configured at a time
21
Resolver
Excitation
High
Analogue
Resolver type Encoder
10kHz, 10V pk-pk
(max) to encoder
Shielded, twisted pair cable should be
used for resolver connections. Motor
must be set up correctly for motor
speed feedback type. Only one encoder
type can be configured at a time
22
Control 0V
Power
Logic Power supply ground
connection
0V
23
CAN
Terminatio
n
Comms
To terminate the CAN node link this pin to pin 15.
This connects a 120Ω termination resistor, mounted
inside the controller, across the CANbus.
Make the connection only if the
controller is physically at the end of the
CANbus network