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Communication parameters
2
FUNCTIONS
<Setting items and set data>
After completion of parameter settings, set the instruction codes and data then start
communication from the computer to allow various types of operation control and
monitoring.
No. Item
Instruction
Code
Description
Number
of Data
Digits
1
Operation
mode
Read H7B
H0000: Communication operation
H0001: External operation
H0002: PU operation 4 digits
Write HFB
H0000: Communication operation
H0001: External operation
2
Monitoring
Output
frequency
[speed]
H6F
H0000 to HFFFF: Output frequency in 0.01Hz
increments
Pr. 37 = 0 (factory setting)
4 digits
H0000 to HFFFF: Speed in 1r/min increments
When Pr. 37 = "0.1 to 999", expansion link parameter (HFF)
= 0
H000000 to HFFFFFF: Speed in 0.01r/min increments
When Pr. 37 = "0.1 to 999", expansion link parameter (HFF)
= 1
6 digits
Output
current
H70
H0000 to HFFFF: Output current (hexadecimal) in 0.01A
increments
4 digits
Alarm
definition
H74 to H75
H0000 to HFFFF: Two most recent alarm definitions
Alarm definition display example (instruction code H74)
* Error code may not be returned.
4 digits
b15
b8b7
b0
001100 0 0 00000011
Previous alarm
(H30)
Most recent alarm
(HA0)
Alarm data
Data Description Data Description
H00 No alarm H60 OLT
H10 OC1 H70 BE
H11 OC2 H80 GF
H12 OC3 H90 OHT
H20 OV1 HA0 OPT
H21 OV2 HB0 PE
H22 OV3 HB1 PUE
H30 THT HB2 RET
H31 THM HC0 CPU*
H40 FIN