Mitsubishi Electric FR-A7NL User manual

FR-A7NL INSTRUCTION MANUAL
INVERTER
INVERTER
Plug-in option
INSTRUCTION MANUAL
INVERTER
1
2
3
4
5
6
7
HEAD OFFICE:MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310
FR-A7NL
L ON W ORKS

communication function
PRE-OPERATION INSTRUCTIONS
INSTALLATION
WIRING
IB(NA)-0600168ENG-B(0407) MEE Printed in Japan Specifications subject to change without notice.
NETWORK VARIABLES
TROUBLESHOOTING
FUNCTION OVERVIEW
INVERTER SETTING

A-1
Thank you for choosing this Mitsubishi Inverter plug-in option.
This instruction manual gives handling information and
precautions for use of this equipment. Incorrect handling might
cause an unexpected fault. Before using the equipment, please
read this manual carefully to use the equipment to its optimum.
Please forward this manual to the end user.
1. Electric Shock Prevention
This section is specifically about
safety matters
Do not attempt to install, operate, maintain or inspect this
product until you have read through this instruction manual and
appended documents carefully and can use the equipment
correctly. Do not use this product until you have a full
knowledge of the equipment, safety information and
instructions.
In this instruction manual, the safety instruction levels are
classified into "WARNING" and "CAUTION".
Assumes that incorrect handling may
cause hazardous conditions, resulting
in death or severe injury.
Assumes that incorrect handling may
cause hazardous conditions, resulting
in medium or slight injury, or may
cause physical damage only.
Note that even the level may lead to a serious
consequence according to conditions. Please follow the
instructions of both levels because they are important to
personnel safety.
WARNING
CAUTION
CAUTION
SAFETY INSTRUCTIONS
WARNING
•While power is on or when the inverter is running, do not
open the front cover. You may get an electric shock.
•Do not run the inverter with the front cover or wiring cover
removed. Otherwise, you may access the exposed high-
voltage terminals and charging part and get an electric shock.
•If power is off, do not remove the front cover except for wiring
or periodic inspection. You may access the charged inverter
circuits and get an electric shock.
•Before starting wiring or inspection, check to make sure that
the inverter power indicator lamp is off, wait for at least 10
minutes after the power supply has been switched off, and
check that there are no residual voltage using a tester or the
like. The capacitor is charged with high voltage for some time
after power off and it is dangerous.
•Any person who is involved in the wiring or inspection of this
equipment should be fully competent to do the work.
•Always install the plug-in option before wiring. Otherwise,
you may get an electric shock or be injured.
•Do not touch the plug-in option with wet hands. Otherwise
you may get an electric shock.
•Do not subject the cables to scratches, excessive stress,
heavy loads or pinching. Otherwise you may get an electric
shock.

A-2
2. Injury Prevention
3. Additional Instructions
Also note the following points to prevent an accidental failure,
injury, electric shock, etc.
1) Transportation and mounting
2) Trial run
3) Usage
4) Maintenance, inspection and parts replacement
5) Disposal
6) General instruction
CAUTION
•Apply only the voltage specified in the instruction manual to
each terminal. Otherwise, burst, damage, etc. may occur.
•Ensure that the cables are connected to the correct terminals.
Otherwise, burst, damage, etc. may occur.
•Always make sure that polarity is correct to prevent damage, etc.
Otherwise, burst, damage may occur.
•While power is on or for some time after power-off, do not touch
the inverter as it is hot and you may get burnt.
CAUTION
•Do not install or operate the plug-in option if it is damaged or
has parts missing.
•Do not stand or rest heavy objects on the product.
•Check that the mounting orientation is correct.
•Prevent other conductive bodies such as screws and metal
fragments or other flammable substance such as oil from
entering the inverter.
CAUTION
•Before starting operation, confirm and adjust the parameters.
A failure to do so may cause some machines to make
unexpected motions.
WARNING
•Do not modify the equipment.
•Do not perform parts removal which is not instructed in this
manual. Doing so may lead to fault or damage of the inverter.
CAUTION
•When parameter clear or all parameter clear is performed,
reset the required parameters before starting operations.
Each parameter returns to the initial value.
•For prevention of damage due to static electricity, touch
nearby metal before touching this product to eliminate static
electricity from your body.
CAUTION
•Do not test the equipment with a megger (measure insulation
resistance).
CAUTION
•Treat as industrial waste.
All illustrations given in this manual may have been drawn with
covers or safety guards removed to provide in-depth
description. Before starting operation of the product, always
return the covers and guards into original positions as specified
and operate the equipment in accordance with the manual.

I
CONTENTS 
1PRE-OPERATION INSTRUCTIONS 1
1.1 Unpacking and Product Confirmation .............................................................................................1
1.1.1 Packing confirmation......................................................................................................................................1
1.1.2 Parts...............................................................................................................................................................2
1.2 Operation Status Indication LED......................................................................................................3
1.3 Specifications.....................................................................................................................................4
1.3.1 Inverter option specifications..........................................................................................................................4
1.3.2 Communication specification..........................................................................................................................4
2INSTALLATION 5
2.1 Pre-Installation Instructions .............................................................................................................5
2.2 Installation of the communication option LED display cover .......................................................5
2.3 Installation Procedure.......................................................................................................................6
3WIRING 7
3.1 System Configuration Example........................................................................................................7
3.2 Wiring..................................................................................................................................................8
4INVERTER SETTING 11
4.1 Parameter List..................................................................................................................................11
4.2 Operation Mode Setting ..................................................................................................................12
4.2.1 Operation mode indication............................................................................................................................12
4.2.2 Operation mode switching and communication startup mode (Pr. 79, Pr. 340)...........................................13
4.3 Operation and Speed Command Source (Pr. 338, Pr. 339, Pr. 550)............................................16
4.3.1 Communication EEPROM write selection (Pr. 342).....................................................................................19

II
4.4 Operation at Communication Error Occurrence...........................................................................20
4.4.1 Operation selection at communication error occurrence (Pr. 500 to Pr. 502)..............................................20
4.4.2 Alarm and measures ....................................................................................................................................24
4.5 Inverter Reset...................................................................................................................................26
5FUNCTION OVERVIEW 27
5.1 XIF File..............................................................................................................................................27
5.2 Output from the Inverter to the Network........................................................................................28
5.3 Input from the Network to the Inverter...........................................................................................29
6NETWORK VARIABLES 31
6.1 Object Map........................................................................................................................................31
6.2 Network Variable List ......................................................................................................................32
6.3 LONWORKS Object .........................................................................................................................36
6.3.1 Setting range of object ID.............................................................................................................................36
6.3.2 Object request (network input SNVT_obj_request nviRequest)...................................................................37
6.3.3 Object status (network output SNVT_obj_status nvoStatus)........................................................................38
6.4 Variable Speed Motor Drive Object................................................................................................39
6.4.1 Start/stop and simple speed setting (network input SNVT_switch nviDrvSpeedStpt)..................................39
6.4.2 Speed adjustment (0.005% increments) (network input SNVT_lev_percent nviDrvSpeedScale)................40
6.4.3 Speed monitor (0.005% increments) (network output SNVT_lev_percent nvoDrvSpeed)...........................41
6.5 Inverter Basic Functions.................................................................................................................42
6.5.1 Inverter input signal (network input SNVT_state nviInvInputSig) .................................................................42
6.5.2 Inverter output signal (network output SNVT_state nvoInvOutputSig).........................................................43
6.5.3 Set frequency write destination selection (network input SNVT_switch nviInvSetFreqSw)..........................44
6.5.4 Set frequency (0.1Hz increments) (network input SNVT_freq_hz nviInvSetFreq) .......................................45
6.5.5 Set frequency (0.005% increments) (network input SNVT_lev_percent nviInvSetFreqP)............................45
6.5.6 Output frequency monitor (0.1Hz increments) (network output SNVT_freq_hz nvoInvOutFreq).................46
6.5.7 Output frequency monitor (0.005% increments) (network output SNVT_lev_percent nvoInvOutFreqP) .....47
6.5.8 Output current monitor (0.1A increments) (network output SNVT_amp nvoDrvCurnt) ................................48

III
6.5.9 Output voltage monitor (0.1V increments) (network output SNVT_volt nvoDrvVolt)....................................48
6.5.10 Actual operation time monitor (network output SNVT_time_hour nvoDrvRunHours)...................................48
6.5.11 Cumulative power monitor (1kWh increments) (network output SNVT_elec_kwh nvoDrvRunPower).........49
6.5.12 Alarm reset (network input SNVT_switch nviInvAlarmReset).......................................................................49
6.5.13 Alarm occurrence definition (network output SNVT_str_asc nvoInvAlarmStr).............................................50
6.5.14 Product information (maker name, type) (network output SNVT_str_asc nvoInvTypeInfo) .........................52
6.5.15 Emergency stop command (network input SNVT_hvac_emerg nviEmergOverride)....................................53
6.5.16 Emergency stop status (network output SNVT_hvac_emerg nvoEmergStatus)..........................................54
6.5.17 Alarm status (network output SNVT_switch nvoDrvAlarm)..........................................................................55
6.6 Inverter PID Control Functions.......................................................................................................56
6.6.1 PID set point (network input SNVT_lev_percent nviInvPIDTarget)..............................................................57
6.6.2 PID measured value (network input SNVT_lev_percent nviInvPIDValue) ...................................................58
6.6.3 PID deviation (network input SNVT_lev_percent nviInvPIDDev) .................................................................59
6.7 Inverter Extended Functions ..........................................................................................................60
6.7.1 Monitor code (network input SNVT_count nviInvMonCode).........................................................................60
6.7.2 Monitor data (network output SNVT_count nvoInvMonData).......................................................................63
6.7.3 Set frequency (0.01Hz increments) (network input SNVT_count nviInvSetFreq2).......................................64
6.7.4 Output frequency monitor (0.01Hz increments) (network output SNVT_count nvoInvOutFreq2) ................64
6.7.5 Command request (network input SNVT_str_asc nviInvCmdReq) ..............................................................65
6.7.6 Command reply (network output SNVT_str_asc nvoInvCmdReply).............................................................70
6.8 Configuration Properties.................................................................................................................71
6.8.1 Initial communication delay time (network input config SNVT_time_sec nciPwUpOutTm)..........................71
6.8.2 Forward/reverse rotation prevention (network input config SNVT_count nciInvFwdRevLock).....................72
6.8.3 % set reference frequency (network input config SNVT_freq_hz nciInvSetFreqBas)..................................73
6.8.4 Maximum frequency (0.1Hz increments) (network input config SNVT_freq_hz nciInvMaxFreq).................74
6.8.5 Minimum frequency (0.1Hz increments) (network input config SNVT_freq_hz nciInvMinFreq)...................74
6.8.6 Heartbeat send time interval (network input config SNVT_time_sec nciSndHrtBt)......................................75
6.8.7 Minimum heartbeat send time (network input config SNVT_time_sec nciMinOutTm) .................................75
6.8.8 Acceleration time (network input config SNVT_time_sec nciRampUpTm)...................................................78
6.8.9 Deceleration time (network input config SNVT_time_sec nciRampDownTm)..............................................79
6.8.10 PID action selection (network input config SNVT_count nciInvPIDSwitch)..................................................80
6.8.11 PID proportional band (network input config SNVT_count nciInvPIDPro)....................................................81
6.8.12 PID integral time (network input config SNVT_time_sec nciInvPIDIntTm)...................................................81

IV
6.8.13 PID differential time (network input config SNVT_time_sec nciInvPIDDiffTm).............................................82
6.8.14 PID manipulated variable bias (0.1Hz increments)
(network input config SNVT_freq_hz nciInvPIDOpeBias) ............................................................................82
6.8.15 PID manipulated variable gain (0.1Hz increments)
(network input config SNVT_freq_hz nciInvPIDOpeGain)............................................................................83
6.8.16 Heartbeat receive time interval (network input config SNVT_time_sec nciRcvHrtBt) ..................................84
6.8.17 Maximum speed (0.005% increments) (network input config SNVT_lev_percent nciMaxSpeed)................86
6.8.18 Minimum speed (0.005% increments) (network input config SNVT_lev_percent nciMinSpeed)..................86
6.8.19 Reference speed setting (network input config SNVT_rpm nciNmlSpeed)..................................................87
6.8.20 Reference frequency setting (network input config SNVT_freq_hz nciNmlFreq).........................................87
6.8.21 Speed adjustment default value (network input config SNVT_lev_percent nciDrvSpeedScale)..................88
6.8.22 Event driven detection width (network input config SNVT_lev_percent nciInvEvtDuty)...............................89
7TROUBLESHOOTING 91
APPENDIX 92
Setup Example.................................................................................................................................92
Example of Inverter Parameter Clear.............................................................................................93

1
1
1PRE-OPERATION INSTRUCTIONS
1.1 Unpacking and Product Confirmation
Take the plug-in option out of the package, check the unit name, and confirm that the product is as you
ordered and intact.
This product is a plug-in option dedicated for the FR-F700 series.
1.1.1 Packing confirmation
Check the enclosed items.
Plug-in option
.........................................1 Mounting screw (M3 ×6mm) .............. 2 (Refer to page 6.) Hex-head screw for option mounting (5.5mm)
...............1 (Refer to page 6.)
Communication option LED
display cover
.............. 1 (Refer to page 5.)
Terminal block
.........................................1 ⋅NeuronID bar code sticker........................................1
(Since one bar code sticker is for maker duplicate, three
stickers are provided.)
Echelon, LONWORKS and Neuron are registered
trademarks of Echelon Corporation in the U.S.A. and
other countries.
LonMaker is a registered trademarks of Echelon
Corporation
5.5mm

2
PRE-OPERATION INSTRUCTIONS
1.1.2 Parts
Front view Rear view
Mounting
hole
Operation status indication LED
Lit/flicker/off of the LED indicate inverter
operation status.
Mounting
hole Connector
Connect to the inverter
option connector.
Service switch
Press when making an initial
setting with the network
management computer.
Mounting
hole
Switch for maker
Do not change from
factory-set status (OFF).
Switch for maker
Do not change from
factory-set status (OFF).
Terminal layout
RUN L.RUN
RX TX
WINK SERVICE
NET_A
NET_B
Communication connector
Mount the accessory terminal
block to connect to the network.
O
N
1
2
O
N
(Refer to page 3.)
(Refer to page 6.)

3
PRE-OPERATION INSTRUCTIONS
1
1.2 Operation Status Indication LED
Operation status indication LED indicates the operating status of the option unit according to the indication
status.
Check the position of LED on page 2.
*1 TX LED turns on when the inverter autonomously sends data due to heartbeat and event driven function even
when the communication cable is not wired.
Name Function LED Status Status
RUN Display the unit operation
status. ON Normal operation
OFF Alarm (watchdog timer expiration etc.) detection
L.RUN Display the handshaking
status with the inverter. ON Normal operation
OFF Alarm detection
RX Display the receiving status
of packet from the network.
ON
(for about 50ms) Receiving
OFF Stop receiving
TX *1 Display the transmission
status of packet to the
network.
ON
(for about 50ms) Transmitting
OFF Stop transmission
WINK Display the receiving status of WINK message from the
network.
Flickerthree
times Receiving WINK message
OFF Stop
SERVICE Display the status of node
and service switch.
ON Service switch pressed status
Flicker Unconfigured status
OFF Configured status
RUN L.RUN
RX TX
WINK SERVICE
RUN L.RUN
RX TX
WINK SERVICE

4
PRE-OPERATION INSTRUCTIONS
1.3 Specifications
1.3.1 Inverter option specifications
1.3.2 Communication specification
Type Inverter plug-in option type (can be mounted/dismounted to/from the inverter front
face)
Number of nodes occupied One inverter occupies one node.
Communication
cable
Free
topology
Twisted pair cable equivalent to EBT0.65mm ×1p
(ICT 0.65mm ×1p, manufactured by Fuji Cable (Ltd. ) made)
Bus
topology Twisted pair cable equivalent to EBT1.3mm ×1p (ICT 1.3mm ×1p, manufactured by Fuji Cable (Ltd. ) made)
Number of units connected 64 units maximum including the inverter in the same segment.
Communication speed 78kbps
Maximum
cable length
Free topology (connect a terminating resistor
at any one point)
Maximum: 500m
Bus topology (connect a terminating resistor
at both ends)
Maximum: 2700m (The total length of each
node stub should be 3m maximum.)
Event
reception and
transmission
Event
reception Number of events receivable at a time : 20 Reception time per event : 100ms maximum (when not conflicting with event transmission)
Event
transmission Transmission time per event
⋅ Without bind : 200ms
⋅With bind : [retry interval time] ×[number of retries]
<Example>
Terminating
resistor
Stub
<Example>
Terminating
resistor
Terminating
resistor

5
2
2INSTALLATION
2.1 Pre-Installation Instructions
Make sure that the input power of the inverter is off.
2.2 Installation of the communication option LED display cover
Mount the cover for displaying the operation status indication LED for the communication option on the
inverter front cover.
CAUTION
With input power on, do not install or remove the plug-in option. Otherwise, the inverter and
plug-in option may be damaged.
CAUTION
Take care not to hurt your hand and such with portions left by cutting hooks of the rear of the
front cover.
1)Cut off hooks on the rear of the inverter front
cover with nipper, etc. and open a window for
fitting the LED display cover.
2)Fit the communication option LED display
cover to the front of the inverter front cover
and push it into until fixed with hooks.
Fitting drawing
Fit it so that the position of
lenses is in the upper-right
of the LED display cover.
Cut off with a nipper, etc.
Cut off with a nipper, etc.

6
INSTALLATION
2.3 Installation Procedure
1) Remove the inverter front cover.
2) Mount the hex-head screw for option
mounting into the inverter screw hole (on
earth plate). (size 5.5mm, tightening
torque 0.56N⋅m to 0.75N⋅m)
3) Securely fit the connector of the plug-in
optionto theinverterconnectoralongthe
guides.
4) Securely fix the both right and left sides
of the plug-in option to the inverter with
the accessory mounting screws. If the
screwholesdonotline-up,theconnector
may not have been plugged snugly.
Check for loose plugging.
REMARKS
After removing two screws on the right and left
places, remove the plug-in option.
(The plug-in option is easily removed if the
control circuit terminal block is removed before.)
CAUTION
1. When the inverter can not recognize that the option unit is mounted due to improper installation, etc.,
" " (option alarm) is displayed.
2. Note that a hex-head screw for option mounting or mounting screw may drop during mounting and removal.
4) Mounting
screws
Inverter side
option
connector
Screw hole for
option mounting
Screw hole for
option mounting
(on earth plate)
Hex-head screw
for option mounting
1)
2)
3)
NET_A
NET_B
FG

7
3
3WIRING
3.1 System Configuration Example
(1) Mount the communication option (FR-A7NL) on the inverter. (Refer to page 6.)
(2) Connect the LONWORKS node, option unit, network management
computer, and terminating resistor with the cable for LONWORKS
communication.
Select a terminating resistor so that resistance values of R of the RC
network are the same as shown below.
⋅ Free topology (Refer to page 4) .........................R = 52.3Ω ±1% 1/8W
⋅ Bus topology (Refer to page 4) ..........................R = 105Ω ±1% 1/8W
(3) Install the network management tool on the network management computer
to assign the network address and bind (association function) the network
variable, etc. to the LONWORKS node.
(Example) Bus topology (without stub)
REMARKS
·The network management tool is not included with this product. Please purchase it separately.
For the network management tool, LonMakerTM by EchelonCo. is recommended.
·When the option unit has been replaced because of a fault or others, perform "Commission" or "Replace" from the
network management tool after switching on the inverter. After performing "Commission" or "Replace", reset the
inverter (switch power off once, then on again or turn the RES signal on).
· Use the network management computer in the earthed status. Use the isolated power supply if the computer can not
be earthed.
R
C1
C2 +
+
Network connection
RC network
Minimum 100 F, 50V(min)
Minimum 100 F, 50V(min)
Terminating
resistor
Network
management
computer
NETA NETB NETA NETB
LONWORKS
node
LOMWORKS cabl
e
(twisted pair cable)
Inverter
NETA NETB
FR-A5NL
NETA NETB
FR-A7NL
LONWORKS
node
NETA NETB
Terminating
resistor

8
WIRING
3.2 Wiring
(1) Strip off the sheath of the cable for LONWORKS communication. If the length of the sheath pealed is
too long, a short circuit may occur among neighboring wires. If the length is too short, wires might come
off.
(2) Loosen the terminal screw and insert the cable into the terminal.
Tighten the fastening screws to the recommended tightening torques. Leave the other end of the cable
unconnected.
Screw Size Tightening Torque Cable Size Screwdriver
M3 0.5N⋅m to 0.6N⋅m0.3mm2to 0.75mm2Small flat-blade screwdriver
(Tip thickness: 0.4mm /tip width: 2.5mm)
CAUTION
Undertightening can cause cable disconnection or malfunction. Overtightening can cause a short circuit or
malfunction due to damage to the screw or unit.
Cable stripping size
7mm

9
WIRING
3
(3) Connect the terminal block to the connector for communication of the communication option.
REMARKS
Change the number of twisted pair cables to insert in NET_A and NET_B according to the system used.
Twisted pair cable
To be connected
to other node
Twisted pair cable
To be connected to
other node
<When using one twisted pair cable> <When using two twisted pair cables>
NET_A
NET_B
NET_A
NET_B
NETA
NETB

10
WIRING
(4) For wiring of the 30K(00620 (EC Version)) or less, route wires between the control circuit terminal block
and front cover. If cables can not be routed between the control circuit terminal block and front cover (5.5K
or less, 37K or more...7.76mm, 7.5K to 30K...7.26mm), remove a hook of the front cover and use a space
become available.
For wiring of the 37K(00770 (EC Version)) or more, use the space on the left side of the control circuit
terminal block.
REMARKS
⋅When the hook of the inverter front cover is cut off for wiring, the protective structure (JEM1030) changes to open
type (IP10).
When installing the inverter front cover, the cables to the inverter's control circuit terminals and
option terminals should be routed properly in the wiring space to prevent them from being
caught between the inverter and its cover.
After wiring, wire offcuts must not be left in the inverter. They may cause an error, failure or
malfunction.
Cut off a hook on the inverter
front cover side surface.
(Cut off so that no portion is left.)
Cut off
with a
nipper,
etc.
Control circuit
terminal block
Wiring can be also performed using a cable
groove in the inverter side surface
30K or less 37K or more
C
AUTI
O
N

11
4
4INVERTER SETTING
4.1 Parameter List
The following parameters are used for the communication option (FR-A7NL)
Perform setting as required.
*1 Parameters which can be displayed when the plug-in option (FR-A7NL) is mounted.
*2 60Hz for the Japanese version and 50Hz for the EC and CH version.
Parameter
Number Name Setting Range Minimum
Setting
Increments Initial Value Refer
to Page
79 Operation mode selection 0 to 4, 6, 7 1 0 13
338 Communication operation command source 0, 1 1 0 16
339 Communication speed command source 0, 1, 2 1 0 16
340 Communication startup mode selection 0, 1, 2, 10, 12 1 0 13
342 Communication EEPROM write selection 0, 1 1 0 19
387 *1 Initial communication delay time 0 to 120s 0.1s 0s 71
388 *1 Heartbeat send time interval 0 to 999.8s 0.1s 0s 75
389 *1 Minimum heartbeat send time 0 to 999.8s 0.1s 0.5s 75
390 *1 % set reference frequency 1 to 400Hz 0.01Hz 60Hz/50Hz *2 73
391 *1 Heartbeat receive time interval 0 to 999.8s 0.1s 0s 84
392 *1 Event driven detection width 0.00 to 163.83% 0.01% 0% 89
500 *1 Communication error recognition waiting time 0 to 999.8s 0.1s 0 20
501 *1 NET mode operation command source
selection 01021
502 *1 Communication error-time stop mode
selection 0, 1, 2, 3 1 0 22
550 NET mode operation command source
selection 0, 1, 9999 1 9999 16

12
INVERTER SETTING
4.2 Operation Mode Setting
The inverter mounted with a communication option has three operation modes.
(1) PU operation [PU]..............Controls the inverter from the key of the operation panel (FR-DU07)
mounted on the inverter.
(2) External operation [EXT] ...Controls the inverter by switching on/off external signals connected to the
control circuit terminals of the inverter.
(The inverter is factory-set to this mode.)
(3) Network operation [NET]...Controls the inverter with instructions from the network via the
communication option.
(The operation signal and running frequency can be entered from the
control circuit terminals depending on the Pr. 338 Communication operation
command source and Pr. 339 Communication speed command source setting.
Refer to page 17.)
4.2.1 Operation mode indication
FR-DU07
Operation mode indication
(The inverter operates according to the LED lit mode.)
PU: PU operation mode
EXT: External operation mode
NET: Network operation mode

13
INVERTER SETTING
4
4.2.2 Operation mode switching and communication startup mode (Pr. 79, Pr. 340)
(1) Operation mode switching conditions
Before switching the operation mode, check that:
1) The inverter is at a stop;
2) Both the STF and STR signals are off; and
3) The Pr. 79 Operation mode selection setting is correct.
(Set with the operation panel of the inverter.)
Refer to the inverter manual (applied) for details of Pr. 79.
(2) Operation mode selection at power on and at restoration from instantaneous power failure
The operation mode at power on and at restoration from instantaneous power failure can be selected.
Set a value other than "0" in Pr. 340 to select the network operation mode.
After started in network operation mode, parameter write from the network is enabled.
REMARKS
1. Change of the Pr. 340 setting is made valid when powering on or resetting the inverter.
2. Pr. 340 can be changed with the operation panel independently of the operation mode.