Transmitting A Power Factor Setpoint - Woodward easYgen-2000 Series User Manual
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Also See for easYgen-2000 Series:
- Configuration manual (339 pages) ,
- Installation manual (72 pages) ,
- Manual (52 pages)
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6.5.1.3.2
Default SDO Communication Channel
6.5.1.4
Transmitting A Power Factor Setpoint
RPDO
Classical communication for CANopen devices
One message
No validation of the received answer
Only working in operational mode
Table 81: Comparison
37535B
CANopen Applications > Remote Control > Transmitting A Power Facto...
Another possibility for transmitting a voltage setpoint is to send the
value via default SDO communication channel. The device listens
to the CAN ID 600 (hex) + Node ID internally to perform the
desired control, the reply is on CAN ID 580 (hex) + Node ID.
The following example shows the send format on CANopen with
Node ID 1.
The value is sent on the bus via the control parameter 510 of the
device.
The hexadecimal value 2000 is calculated internally:
510 (dec) - 1FE (hex)
n
1FE (hex) + 2000 (hex) = 21FE (hex)
n
Please note that high and low bytes are exchanged in
the sent value.
The data (hex) shows the state of parameter 510 to achieve the
required control.
The above table shows exemplary send data for the device on the
CANopen bus in line 2.
It is possible to transmit a power factor setpoint value via the CAN‐
open protocol. Prerequisite for the use of a power factor setpoint
via an interface is the configuration of the power factor setpoint
source (parameter
source or parameter
source)
Ä Chapter 4.5.12.6 "Power Factor Control" on page 290
Refer to
for detailed information.
The respective power factor setpoint source is to be configured to
05.12 "Interface PF setp.".
Two different methods to transmit a power factor setpoint via CAN‐
open are detailed below.
These are "Transmitting a power factor setpoint via RPDO" and
"Transmitting a power factor setpoint via default SDO communica‐
tion channel". The advantages and the disadvantages of these two
methods are as follows.
Default SDO communication channel
Configuration process
Two messages
Validation answer, if message has been received by the unit
May take longer in case of communication with two messages
easYgen-2200/2500 | Genset Control
5638 Ä p. 292
for power factor setpoint 1
5639 Ä p. 293
for power factor setpoint 2
Application
415
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