INVT Goodrive 35 Series Operation Manual page 298

inverters Appendix A
Goodrive35
Parameters area:
PKW1-Parameter identification
PKW2-array index number
PKW3-parameter value 1
PKW4-parameter value 2
Process data:
CW-Control word (from master to slave, see Table 1)
SW-state word (from slave to master, see Table 3)
PZD-process data (decided by users) (From master to slave output 【given value】, from
slave to master input【actual value】)
PZD area (process data area)
PZD area of communication message is designed for control and monitor inverter. PZD from
master and slave station is addressed in high priority; the priority of dealing with PZD is
superior to that of PKW, and always sends current valid date from interface.
Control word (CW) and state word (SW)
Control word (CW) is a basic method of fieldbus system controlling inverter. It is sent by the
fieldbus master station to inverter and the EC-TX-103 communication cards act as gateway.
Inverter responds according to the control word and gives feedbacks to master machine
through state word (SW).
Contents of control word and state word are shown in table 4.6 and table 4.7 respectively.
Please refer to inverter manual to know bit code.
Given value
Inverter can receive control information by several ways, these channels include: analog and
digital input terminals, inverter control board and module communication (such as RS485,
EC-TX-103 communication cards). In order to use PROFIBUS/CANOPEN control inverter,
the communication module must be set to be inverter controller.
Contents of set value are shown in Table 4.6.
Actual value
Actual value is a 16-bit word, which contains converter operation information. Monitoring
297
www.barghmaher.ir