Fuji Electric FRENIC-Ace series, Руководство пользователя

Страница: 572 / 788

9.2 CANopen Communication
9-48
9.2.14 Other points to note
Here, lists the points to note when using the CANopen communication:
(1) Avoid setting Transmission type 255 for the transmit PDO No. 2 and 3 at the same time (transmitted each
time the data changes) and setting Inhibit time to zero. The CANopen communication traffic rises due to the
frequency of the data change so that intended feature can not be met. Reduce either one of transmission
frequency (set larger Inhibit time, use Sync signal, etc.)
(2) The resolution of the timer is 2 ms. Consequently, if odd timer value is set for the object whose timer can be
set, the value assumed is the next higher even value. For example, if the timer is set to 21 ms, the value is
assumed to be 22 ms.
(3) To cancel the auto-tuning (writing data into the inverter function code P04 and A18) over the CANopen
communication, write zero into each inverter function code.
(4) If the same object is mapped in the same RPDO, the information mapped later will be valid.
Example: If CTW is mapped in all mapping entries of RPDO1, only the last data is valid.
6040 6040 6040 6040
Invalid Invalid Invalid Valid
(5) Relationship between 6043 and 6044 in TPDO
• The simultaneity of numeric value is not guaranteed in order to poll internal data.
• Since 6043 is a request and 6044 is a feedback, in order to use the numeric value simply, it is
recommended to map in order of 6043 and 6044.