Mitsubishi Electric FR-V500 Instruction Manual page 141

Communication functions (Pr. 117 to Pr. 124, Pr. 342)
5) Waiting time
Specify the waiting time between the receipt of data by the inverter from the computer and the transmission of
reply data from the inverter. Set the waiting time in accordance with the response time of the computer
between 0 and 150ms in 10ms increments. (Example: 1 = 10ms, 2 = 20ms)
Computer
Inverter
Inverter
Computer
CAUTION
When the Pr. 123 "waiting time setting" setting is other than 9999, create the communication request data
without "waiting time" in the data format. (The number of characters decreases by 1.)
6) Response time
Computer
Inverter
Inverter
Computer
[Formula for data sending time]
1
Communication
speed (bps)
Communication specifications
Name
Stop bit length
Data length
Parity check
In addition to the above, 1 start bit is necessary.
Minimum number of total bits....... 9 bits
Maximum number of total bits...... 12 bits
Data sending time (refer to the following formula)
Inverter data processing time
10ms or more necessary
Data sending time (refer to the following formula)
Number of data
×
× characters
(Refer to page 130)
Number of
Bits
1 bit
2 bits
7 bits
8 bits
Yes 1 bit
No 0
Inverter data processing time
= waiting time
(set value 10ms)
Waiting time Data check time
(setting 10ms) (depends on the
instruction code (see the
following table))
Time
Communication specifications
(total number of bits) = Data send time (s)
(See below.)
Data check time
Various monitors, run command,
frequency setting (RAM)
Parameter read/write, frequency setting
2
(E PROM)
Parameter clear/all clear
Reset command
132
+ data check time
(12ms)
Item Check Time
< 12ms
< 30ms
< 5s
No answer