Toshiba TOSVERT VF-nC3 Instruction Manual page 22

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Host
computer
Block 1
Inverter No. 10 Inverter No.11
Inverter
Inverter
*1
In broadcast communication, only the representative inverter in each block returns data to the host
computer. However, you can make the representative inverter in each block report the occurrence
of a problem in the block. To do so, follow these steps.
Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: f803=3 (sec)), set
the output terminal selection parameter (FL) so that trip information will be output through the output
terminal (f132=10), and set the input terminal selection parameter (F) of the representative in-
verter in each block to "external input trip (emergency stop)" (f111=20,21(Inversion)). Then,
connect the input terminal (F, CC) of the representative inverter to the FL terminal (FLA, FLC) of
each of the other inverters in the same block (FLA-F, FLC-CC). In this setting, if an inverter trips,
the representative inverter will come to an emergency stop, and as a result it will report the occur-
rence of a problem in its block to the computer. (If the representative inverter returns a lowercase
letter in response to a command from the computer, the computer will judge that a problem has
arisen in an inverter.) To examine details on the problem that has arisen, the host computer ac-
cesses each individual inverter, specifying its communication number. To make the computer issue
a command to all inverters in block 1 or block 2 shown in the figure above, specify "1*" or "2*", re-
spectively. In this system, inverter No. 10 will return data to the computer if a problem arises in
block 1, or inverter No. 20 if a problem arises in block 2. For overall broadcast communication,
specify "**", in which case the inverter with the communication number "00" will return data to the
computer.
In this example, if you want the computer to maintain communication without bringing an represen-
tative inverter to an emergency stop, set its input terminal selection parameter to "disabled
(f111=0) but not to "external input trip (emergency stop)." This setting causes the host com-
puter to check the setting of the input terminal information parameter (Communication No.=DF06,
bit 0) of the representative inverter, and as a result enables the computer to detect the occurrence
of a problem.
CAUTION:
Data from inverters will be deformed if inverters of the same number are connected on the network.
Never assign same single numbers to inverters on the network.
Inverter No.20 Inverter No.21
Inverter No.19
Inverter Inverter
21
E6581657
Block 2
Inverter No.29
Inverter
Inverter
*1: Error signal I/F