Instruction manual

PARAMETERS
120
5) Waiting time
Specify the waiting time between the receipt of data at the inverter from the
computer and the transmission of reply data. Set the waiting time in accordance
with the response time of the computer between 0 and 150ms in 10ms
increments
(e.g. 1 = 10ms, 2 = 20ms).
Computer
↓
Inverter
Inverter
↓
Com
p
uter
Inverter data processing time
= waitin
g
time + data check time
(setting
×
10ms) (12ms)
Note: If the Pr. 123 "waiting time setting" value is not 9999, create the communication
request data with no "waiting time" in the data format. (The number of
characters is decremented by 1.)
6) Response time
(set value 10ms)
(set value 10ms)
Inverter
Computer
(refer to the following calculation expression)
Inverter data processing time = waiting time + data check time
(12ms)
10ms or
more required
10ms or
more required
(refer to the following calculation expression)
STX
ACK ENQ
(refer to the following calculation expression)
Inverter data processing time = waiting time + data check time
(12ms)
10ms or
more required
Data sending time (refer to the following calculation expression)
Computer
Inverter
Inverter
Computer
ENQ
Data sending time
Data sending time
Data sending time
Computer
Inverter
[Data sending time calculation expression]
1
Communication s
p
eed
(bps)
×
Number of data
characters
(
Refer to
p
a
g
e 118
)
×
Communication
specification
(
Total number of bits
)
(See below)
=
Data sendin
g
time (s)
!
Communication specification
Name Number of Bits
Stop bit length
1 bit
2 bits
Data length
7 bits
8 bits
Yes 1 bit
Parit
y
check
No 0 bits
In addition to the bits in the above table, 1 bit is re
q
uired for the start bit.
Minimum total number of bits ... 9 bits
Maximum total number of bits ... 12 bits
4