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VECTORDRIVE DSV 5444
Top technology in drive electronics
07.07.04 10:12
Dietz-electronic
page 49 of 60
8.4.2.4
Three-digit short-message system messages
Status messages
Z00
Control switched off
Z01
Control disabled externally
Z02
EMERGENCY STOP
Z03
Not ready for operation
Z10
Ready for operation, disabled externally
Z11
Ready for operation, cleared externally
Z20
Control switched on, speed control
Z21
Feed disabled, speed = 0
Z22
Speed setpoint <> actual speed
Z31
Feed cleared
Z32
Speed setpoint = actual speed
Z40
Control switched on, position control
Z43
Position setpoint <> actual position
Z53
Position setpoint = actual position
Z54
Reference cycle terminated
Z55
Synchronization position
Status messages
E00
Input syntax
E01
Number range
E02
Division error
E10
Block masked
E30
Analog setpoint input
E31
Drive moving
E32
Drive change-over
E33
Signal: position set
E34
No reference point
E35
No synchronization point
8.4.3
Optimized short message traffic for RS485
The "B5" operating mode affords improved performance for multiple axis operation on RS485 bus lines. The
commands are identical to the addressed short message commands.
An acknowledged and unacknowledged system is proposed.
8.4.3.1
Acknowledged "B5 mode "
With acknowledged "B5" mode, there is a uniform end symbol available for communication with a higher
ranking control system. This transmission protocol corresponds to B2 mode. The only difference is a uniform
ASCII character 3 (ETX or <STRG>c) as an end character. This end character is transmitted in place of "*"
as an acknowledgment for commands and after short messages. The "ETX" character is used by the higher
ranking control system as end identification for the inverter response.
8.4.3.2
Unacknowledged "B5 mode "
The unacknowledged (broadcast) service is introduced in "B5" mode with the ASCII character 2 (STX or
<STRG>b). Thereafter, several inverters can be addressed in direct sequence and, for example, supplied
with setpoint values. In this mode, the inverter check-back signals are disconnected. A control system does
not therefore need to wait for individual check-back signals from the inverter.
The unacknowledged service is ended with "ETX" (on all inverters). For this, the last inverter addressed re-
sponds in the normal way ("B5" mode).
Short message commands which return a value, cannot be used in unacknowledged service.
Example:
<STX>A01o=- 345<CR>A02o= 2345<CR>A03a<CR><ETX>