MITSUBISHI ELECTRIC FR-S520 - Manual (Page 126)

117
2
2) Operation mode-based functions
Operation Mode
Operation
Location
Item
PU operation
External
operation
Computer link
operation
Run command
(start)
Enabled
Enabled
(Combined
operation mode)
Disabled
Running frequency
setting
Enabled
Enabled
(Combined
operation mode)
Disabled
Monitoring Enabled Enabled Enabled
Parameter write Enabled (*4) Disabled Disabled
Parameter read Enabled Enabled Enabled
Inverter reset Enabled Enabled Enabled
Operation panel
or FR-PU04
Stop command Enabled Enabled (*3) Enabled (*3)
Run command Disabled Disabled Enabled (*1)
Running frequency
setting (*)
Disabled Disabled Enabled (*1)
Monitoring Enabled Enabled Enabled
Parameter write Disabled Disabled Enabled (*4)
Parameter read Enabled Enabled Enabled
Inverter reset Disabled Disabled Enabled (*2)
On-computer
user program by
RS-485
communication
Stop command Disabled Disabled Enabled
Inverter reset Enabled Enabled Enabled
Run command
Enabled
(Combined
operation mode)
Enabled Enabled (*1)
Control circuit
external
terminal
Running frequency
setting
Enabled
(Combined
operation mode)
Enabled Enabled (*1)
*1. As set in the communication parameters n8 "operation command write" and n9
"speed command write". (refer to page 130)
*2. At occurrence of RS-485 communication error, the inverter cannot be reset
from the computer.
*3. As set in Pr. 75 "reset selection/PU stop selection".
*4. As set in Pr. 77 "parameter write disable selection".
CAUTION
* When the user program of the computer is used to make the running frequency
setting by RS-485 communication, setting can be made in the minimum setting
increments of 0.01Hz, but the setting may be written to the inverter in increments
of 0.1Hz. (0 is written in the second decimal place.)
POINT
To make RS-485 communication between the inverter and personal computer, the
operation mode must be set to the "computer link operation mode".
Pr. 79 "operation mode selection"
≠
‚ "1, 3, 4"
and communication parameter n10 "link start mode selection" = "1"
Reset the inverter after setting the communication parameters n1, n2, n3, n4, n7,
n11. The values set are registered once the inverter is reset.