Mitsubishi Electric FR-D720-0.1K Instruction Manual page 178

Selection of operation mode and operation location
(2) Controllability through communication
Controllability through communication in each operation mode is shown below.
Monitoring and parameter read can be performed from any operation regardless of operation mode.
Operation Condition
Location (Pr. 551 Setting)
2
(PU connector)
Control by
RS-485
communication
from PU
connector
Other than the
above
Control circuit
external —
terminals
∗1
As set in Pr.338 Communication operation command source and Pr. 339 Communication speed command source (Refer to page 175)
∗2
At occurrence of RS-485 communication error, the inverter cannot be reset from the computer.
∗3
Enabled only when stopped by the PU. At a PU stop, PS is displayed on the operation panel. As set in Pr. 75 PU stop selection. (Refer to page 159)
∗4
Some parameters may be write-disabled according to the Pr. 77 Parameter write selection setting and operating status. (Refer to page 162)
∗5
Some parameters are write-enabled independently of the operation mode and command source presence/absence. When Pr. 77 = "2", write is enabled.
(Refer to the parameter list on page 58) Parameter clear is disabled.
∗6
Available with multi-speed setting and terminal 4-5 (valid when AU signal is ON).
(3) Operation at error occurrence
Operation
Error Definition
Condition
(Pr. 551 setting)
Inverter
—
fault
2 (PU connector)
PU 9999 (automatic
disconnection of recognition)
the PU Other than the
above
RS-485
2 (PU connector)
communication
error of the PU Other than the
connector above
∗1
Can be selected using Pr. 75 Reset selection/disconnected PU detection/PU stop selection.
∗2
Can be selected using Pr. 122 PU communication check time interval.
∗3
In the PU JOG operation mode, operation is always stopped when the PU is disconnected. Whether fault (E.PUE) occurrence is allowed or not is as set in
Pr. 75 Reset selection/disconnected PU detection/PU stop selection.
176
Operation
Mode
PU
Operation
Item
Run command (start)
Run command (stop)
Running frequency
setting
Parameter write
Inverter reset
Run command (start)
Run command (stop)
Running frequency
setting
× ∗5
Parameter write
Inverter reset
Inverter reset
Run command
(start, stop)
Frequency setting
Mode
External
PU Operation
Operation
Stop
Stop/continued ∗1, ∗3
Stop/continued∗1
Stop/
Continued
continued∗2
Continued
External/PU
External
Combined
Operation Mode 1
Operation
(Pr. 79 = 3)
× ×
Δ ∗3 Δ ∗3
×
∗4 × ∗5
× × ×
× × ×
× × ×
× ∗5 × ∗5
× × ×
×
× Δ ∗6
: Enabled, ×: Disabled, Δ: Some are enabled
External/PU External/PU
Combined
Operation Mode Operation Mode
1
(Pr. 79 = 3)
Stop/continued∗2 —
External/PU
Combined
Operation Mode 2
(Pr. 79 = 4)
×
∗4 ∗4
×
×
×
× ∗5
×
×
Combined
NET Operation
2
(Pr. 79 = 4)
Stop/continued∗2
NET Operation
×
×
×
× ∗5
×
∗1
∗1
∗1
∗4
∗2
× ∗1
× ∗1