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INVERTER
Control terminal option
FR-A7PS
INSTRUCTION MANUAL
12V control circuit terminal block with encoder power supply
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Thank you for choosing this Mitsubishi Inverter control terminal 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 performance.
Please forward this manual to the end user.
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".
WARNING
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 CAUTION level may lead to a serious consequence according to conditions. Please follow the instructions of both levels because they are important to personnel safety.
Safety Precautions
1. Electric Shock Prevention
WARNING
• While power is on or when the inverter is running, do not open the front cover. Otherwise, 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 highvoltage 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 indication of the inverter operation panel 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 control terminal option before wiring.
Otherwise, you may get an electric shock or be injured.
• Do not touch the control terminal 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-1
2. Injury Prevention
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 they will be extremely hot. Doing so can cause burns.
3. Additional Instructions
Also note the following points to prevent an accidental failure, injury, electric shock, etc.
(1) Transportation and mounting
CAUTION
• Do not install or operate the terminal block option unit 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.
(2) Trial run
CAUTION
• Before starting operation, confirm and adjust the parameters.
A failure to do so may cause some machines to make unexpected motions.
(3) Usage
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 product.
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.
(4) Maintenance, inspection and parts replacement
CAUTION
• Do not test the equipment with a megger (measure insulation resistance).
(5) Disposal
CAUTION
• Treat as industrial waste.
(6) General instruction
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 inverter manual.
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CONTENTS
1 PRE-OPERATION INSTRUCTIONS 1
3 WIRING OF A PLUG-IN OPTION AND MOTOR WITH ENCODER 15
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1
PRE-OPERATION INSTRUCTIONS
1.1
Unpacking and Product Confirmation
Take the control terminal option out of the package, check the product name on the reverse side, and confirm that the product is as you ordered and intact.
This product is a control terminal option unit dedicated for the FR-A
700
series.
1.1.1 Packing confirmation
Check the enclosed items.
Control terminal option
......................................................... 1
Instruction manual
.........................................................1
Connection cable for FR-A7AP and
FR-A7AL................. 1
Instruction manu al
1
1
PRE-OPERATION INSTRUCTIONS
1.1.2 Parts
Jumper connector
Connector
Connect to the inverter control circuit connector.
Control logic switchover jumper connector
Control logic (sink logic, source logic) can be switched.
The input signals are set to sink logic (SINK) when shipped from the factory.
(Refer to the inverter manual for details.)
1.1.3 Terminal layout
A1 B1 C1 PG12 SD 5 10E 10 2 5 4
RL RM RH RT AU STOP MRS RES SD FM AM 1
SE RUN SU IPF OL FU SD SD STF STR JOG CS PC
2
1.2
Terminal connection diagram
Control input signals (No voltage input allowed)
Terminal functions vary with the input terminal assignment
(Pr. 178 to Pr. 189)
Forward rotation start
Reverse rotation start
Start self-holding selection
High speed
Multi-speed selection
*1. JOG terminal can be used as pulse train input terminal.
Use Pr. 291 to select JOG/pulse.
Middle speed
Low speed
Jog mode
STF
STR
STOP
RH
RM
RL
JOG
*1
RT
Second function selection
*2. AU terminal can be used as PTC input terminal.
Output stop
Reset
Terminal 4 input selection
(Current input selection)
Selection of automatic restart after instantaneous power failure
Contact input common
24VDC power supply
(Common for external power supply transistor)
Frequency setting signal (Analog)
* 3.Terminal input specifications can be changed by analog
potentiometer
1/2W1k
Ω
*4 input specifications
Frequency setting switchover ( Pr. 73, Pr. 267 ).
Set the voltage/current input switch in the OFF position to
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1
2
Auxiliary input
(+)
(-)
Terminal 4 input
(Current input)
(+)
(-) select voltage input (0 to 5V/0 to10V) and ON to select current input (4 to 20mA).
*4.It is recommended to use 2W1k when the frequency setting signal is changed frequently.
Ω
MRS
RES *2
AU
AU
CS
PTC
5
SD
24V
PC
*3
10E(+10V)
Voltage/current input switch
4 2
10(+5V)
ON
OFF
2
0 to 5VDC
(Initial value)
(Analog common)
*3
1
0 to ±10VDC
0 to ±5VDC
(Initial value) selected
*3
4
4 to 20mADC
0 to 5VDC
0 to 10VDC
(Initial value) selected *3
C1
B1
A1
Relay output 1
(Alarm output)
Relay output
Terminal functions vary with the output terminal assignment
( Pr. 195)
Power for encoder output
12V
PG12
SD
Encoder power supply terminal
Connect to terminal PG of the FR-A7AP/FR-A7AL with an enclosed connection cable
Power supply ground terminal
RUN
SU
IPF
OL
FU
SE
Running
Up to frequency
Open collector output
Terminal functions vary with the output terminal assignment
( Pr. 190 to Pr. 194)
Instantaneous power failure
Overload
Frequency detection
Open collector output common
Sink/source common
FM
*6
SD
AM
5
+
Calibration resistor *5
Indicator
(Frequency meter, etc.)
Moving-coil type
1mA full-scale
(+)
Analog signal output
(0 to 10VDC)
(-)
*5.It is not necessary when calibrating the indicator from the operation panel.
*6.FM terminal can be used for pulse train output of open collector output using Pr. 291 .
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1.3
Control terminal specifications
(1) Power for encoder output
Terminal
Symbol
PG12
SD
Terminal
Name
Encoder power supply terminal
(Positive side)
Contact input common (sink),
Power supply ground terminal
Description
12VDC power supply for encoder.
Connect to terminal PG of the FR-A7AP/FR-A7AL with an enclosed connection cable
Common terminal for contact input or encoder power supply.
Isolated from terminals 5 and SE.
Do not ground.
* Terminal SDs are connected inside.
Rated Specifications
12VDC ± 10%
Permissible maximum load current 150mA
Power supply common
4
(2) Contact input
indicates that input signal functions can be selected using Pr. 178 to Pr. 189 (input terminal function selection)
(Refer to section 4 of the inverter manual for details of Pr. 178 to Pr. 189)
Description
Rated
Specifications
Terminal
Symbol
STF
STR
STOP
RH, RM,
RL
Terminal
Name
Forward rotation start
Reverse rotation start
Start selfholding selection
Multi-speed selection
Jog mode selection
JOG
Pulse train input
RT
Second function selection
Turn on the STF signal to start forward rotation and turn it off to stop.
Turn on the STR signal to start reverse rotation and turn it off to stop.
When the STF and STR signals are turned on simultaneously, the stop command is given.
Turn on the STOP signal to self-hold the start signal.
Multi-speed can be selected according to the combination of RH,
RM and RL signals.
Turn on the JOG signal to select Jog operation (initial setting) and turn on the start signal (STF or STR) to start Jog operation.
JOG terminal can be used as pulse train input terminal. To use as pulse train input terminal, the Pr. 291 setting needs to be changed.
(maximum input pulse: 100kpulses/s)
Turn on the RT signal to select second function.
When the second function such as "second torque boost" and
"second V/F (base frequency)" are set, turning on the RT signal selects these functions.
Input resistance 4.7k
Ω
Voltage at opening: 21 to 27VDC
Contacts at shortcircuited: 4 to 6mADC
Input resistance 2k Ω
Contacts at shortcircuited: 8 to 13mADC
Input resistance 4.7k
Ω
Voltage at opening: 21 to 27VDC
Contacts at shortcircuited: 4 to 6mADC
5
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Terminal
Symbol
MRS
RES
AU
CS
Terminal
Name
Description
Output stop
Reset
Turn on the MRS signal (20ms or more) to stop the inverter output.
Use to shut off the inverter output when stopping the motor by electromagnetic brake.
Used to reset alarm output provided when protective circuit is activated.
Turn on the RES signal for more than 0.1s, then turn it off.
Initial setting is for reset always. By setting Pr. 75 , reset can be set to enabled only at an inverter alarm occurrence. Recover about 1s after reset is cancelled.
Terminal 4 input selection
PTC input
Terminal 4 is made valid only when the AU signal is turned on. (The frequency setting signal can be set between 4 and 20mADC.)
Turning the AU signal on makes terminal 2 (voltage input) invalid.
AU terminal is used as PTC input terminal (thermal protection of the motor). When using it as PTC input terminal, set the AU/PTC switch to PTC.
Selection of automatic restart after instantaneous power failure
When the CS signal is left on, the inverter restarts automatically at power restoration. Note that restart setting is necessary for this operation. In the initial setting, a restart is disabled.
(Refer to Pr. 57 Restart coasting time in section 4 of Instruction Manual.)
Rated
Specifications
Input resistance 4.7k
Ω
Voltage at opening: 21 to 27VDC
Contacts at shortcircuited: 4 to 6mADC
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Terminal
Symbol
SD
PC
Terminal
Name
Description
Contact input common
(sink)
Common terminal for contact input terminal (sink logic) and terminal
FM.
Common output terminal for 24VDC 0.1A power supply (PC terminal).
Isolated from terminals 5 and SE.
* Terminal SDs are connected inside.
External transistor common,
24VDC power supply, contact input common
(source)
When connecting the transistor output (open collector output), such as a programmable controller, when sink logic is selected, connect the external power supply common for transistor output to this terminal to prevent a malfunction caused by undesirable currents.
Can be used as 24VDC 0.1A power supply.
When source logic has been selected, this terminal serves as a contact input common.
Rated
Specifications
—
Power supply voltage range 19.2 to 28.8VDC
Current consumption
100mA
1
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(3) Frequency setting
Terminal
Symbol
10E
10
2
4
Terminal
Name
Description Rated Specifications
Frequency setting power supply
Frequency setting
(voltage)
Frequency setting
(current)
When connecting the frequency setting potentiometer at an initial status, connect it to terminal 10.
Change the input specifications of terminal 2 when connecting it to terminal 10E. (Refer to Pr. 73 Analog input selection in section 4 of Instruction Manual.)
Inputting 0 to 5VDC (or 0 to 10V, 0 to 20mA) provides the maximum output frequency at 5V (10V, 20mA) and makes input and output proportional. Use to 5VDC (initial setting), 0 to 10VDC, and 0 to 20mA. Set the voltage/current input switch in the ON position to select current input (0 to 20mA). *
Pr. 73 to switch from among input 0
Inputting 4 to 20mADC (or 0 to 5V, 0 to 10V) provides the maximum output frequency at 20mA makes input and output proportional. This input signal is valid only when the AU signal is on (terminal 2 input is invalid). Use Pr. 267 to switch from among input 4 to 20mA (initial setting), 0 to 5VDC, and 0 to 10VDC. Set the voltage/current input switch in the OFF position to select voltage input (0 to 5V/0 to 10V). * Use Pr. 858 to switch terminal functions.
10VDC
Permissible load current
10mA
5VDC
Permissible load current
10mA
Voltage input:
Input resistance 10k Ω ±
1k Ω
Maximum permissible voltage 20VDC
Current input:
Input resistance 245 Ω ±
5 Ω
Maximum permissible current 30mA
Voltage/current input switch switch1
4 2 switch2
* Refer to section 4 of the inverter manual for details of Pr. 73 and Pr. 267
8
Terminal
Symbol
1
5
Terminal
Name
Frequency setting auxiliary
Frequency setting common
Description Rated Specifications
Inputting 0 to ± 5VDC or 0 to ± 10VDC adds this signal to terminal 2 or 4 frequency setting signal. Use Pr. 73 to switch between the input 0 to ± 5VDC and 0 to ± 10VDC (initial setting).
Use Pr. 868 to switch terminal functions.
Input resistance 10k Ω ±
1k Ω
Maximum permissible voltage ± 20VDC
Common terminal for frequency setting signal (terminal 2, 1 or
4) and analog output terminal AM. Do not earth (ground).
—
(4) Output signals
indicates that output signal functions can be selected using Pr. 190 to Pr. 195 (output terminal function selection) .
(Refer to section 4 of the inverter manual for details of Pr. 190 to Pr. 195)
Terminal
Symbol
A1, B1,
C1
Terminal
Name
Description
Relay output
1 (alarm output)
1 changeover contact output indicates that the inverter protective function has activated and the output stopped.
Abnormal: No conduction across B-C (Across A-C Continuity),
Normal: Across B-C Continuity (No conduction across A-C)
Rated
Specifications
Contact capacity:
230VAC 0.3A (Power factor=0.4)
30VDC 0.3A
1
9
Terminal
Symbol
RUN
SU
OL
IPF
FU
SE
Terminal
Name
Description
Inverter running
Up to frequency
Overload warning
Switched low when the inverter output frequency is equal to or higher than the starting frequency (initial value 0.5Hz). Switched high during stop or DC injection brake operation.
*
Switched low when the output frequency reaches within the range of
± 10% (initial value) of the set frequency.
Switched high during acceleration/ deceleration and at a stop. *
Switched low when stall prevention is activated by the stall prevention function. Switched high when stall prevention is cancelled. *
Alarm code (4bit) output
(Refer to section 4 of
Instruction Manual .
)
Instantaneous power failure
Switched low when an instantaneous power failure and under voltage protections are activated. *
Frequency detection
Switched low when the inverter output frequency is equal to or higher than the preset detected frequency and high when less than the preset detected frequency. *
Open collector output common
Common terminal for terminals RUN, SU, OL, IPF, FU
10
Rated
Specifications
Permissible load
24VDC (27VDC maximum) 0.1A (A voltage drop is 2.8V maximum when the signal is on.)
* Low indicates that the open collector output transistor is on (conducts).
High indicates that the transistor is off
(does not conduct).
—
Terminal
Symbol
FM
AM
Terminal
Name
For meter
Description
Output item:
Output frequency (initial setting)
NPN open collector output
Analog signal output
Select one e.g. output frequency from monitor items. (Not output during inverter reset.)
The output signal is proportional to the magnitude of the corresponding monitoring item.
Signals can be output from the open collector terminals by setting Pr. 291 .
Output item:
Output frequency (initial setting)
Rated
Specifications
Permissible load current
2mA
1440pulses/s at 60Hz
Maximum output pulse:
50kpulses/s
Permissible load current: 80mA
Output signal 0 to
10VDC
Permissible load current
1mA (load impedance
10k Ω or more)
Resolution 8 bit
(5) Main differences and compatibilities with the standard terminal block
Item
Changed
/cleared functions
Standard Terminal Block
Without 12VDC power supply for encoder
Relay contact 2 points
(terminal A1, B1, C1, A2, B2, C2)
Pr. 196
ABC2 terminal function selection
Terminal 5 1 point
FR-A7PS
With 12VDC power supply for encoder
Relay contact 1 point
(terminal A1, B1, C1)
The Pr. 196 setting is invalid.
Terminal 5 2 points
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2
INSTALLATION
2.1
Pre-Installation Instructions
Make sure that the input power of the inverter is off.
CAUTION
Do not install or remove a control terminal option while input supply is on. Otherwise, the inverter and option may be damaged.
For prevention of damage due to static electricity, touch nearby metal before touching this product to eliminate static electricity from your body.
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INSTALLATION
2.2
Installation procedure
(1) Remove the inverter front cover.
(Refer to the inverter instruction manual for removing the front cover.)
(2) Loosen the two installation screws in both ends of the control circuit terminal block. (These screws cannot be removed.)
Pull down the terminal block from behind the control circuit terminals.
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2
INSTALLATION
(3) Using care not to bend the pins of the inverter's control circuit connector, reinstall the control terminal option and fix it with the mounting screws.
CAUTION
1. Make sure that the control circuit connector is fitted correctly.
2. While power is on, never disconnect the standard control circuit terminal option (FR-A7PS).
(4) Install the inverter front cover.
(Refer to the inverter instruction manual for installing the front cover.)
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3
WIRING OF A PLUG-IN OPTION AND MOTOR WITH ENCODER
3.1
Connection diagram
When using 12VDC power for encoder of this option, connect terminal PG12 and terminal PG of a plug-in option FR-A7AP or FR-A7AL with an enclosed connection cable.
<Wiring example of the FR-A7AP>
SW2
LED1
LED2
LED3
Option slot 1
For installation of FR-A7AP
SW1
PG
Option slot 2
Connection cable for
FR-A7AP and FR-A7AL
Option slot 3
PG12
FR-A7PS
CAUTION
When terminal PG12 and terminal SD are shorted, power is not supplied to the encoder. Therefore, a signal from the encoder can not be received (fault display due to terminal short circuit is not output). Operating the inverter in such status may activate stall prevention (OL), activating protective function such as overcurrent shutoff (E.OC
) and electronic thermal relay function (E.THT, E.THM).
In addition, it could cause the inverter to fail.
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3
WIRING OF A PLUG-IN OPTION AND MOTOR WITH ENCODER
<Wiring example of the FR-A7AP>
Three-phase AC power supply
MCCB
Inverter
External thermal relay input
PC
CS(OH)
SD
FR-A7AP
PA1
PA2
U
V
W
2W1k
Ω
E
Earth
(ground)
U
V
W
G1
G2
Differential line driver
PB1
PB2
PZ1
PZ2
Complimentary
Terminating resistor
ON
PG
SD
PG
SD
A
B
F
G
C
D
S
R
A
B
C
SF-V5RU, SF-THY
FAN
Thermal protector
IM
Encoder
OFF
12V
PG12
SD
Enclosed connection cable
REMARKS y Since terminal SDs are connected inside the inverter, it is not necessary to connect this option and terminal SD of the plug-in option FR-A7AP or FR-A7AL.
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4
PRECAUTIONS
(1) When fitting the FR-A7PS to the inverter, insert it using care not to bend pins of a connector for control circuit connection of the inverter.
(2) To receive a signal from encoder, connect terminal PG12 of the FR-A7PS and terminal PG of the FR-
A7AP with an enclosed connection cable.
(3) When terminal PG12 and terminal SD are shorted, power is not supplied to the encoder. Therefore, a signal from the encoder can not be received (fault display due to terminal short circuit is not output).
Operating the inverter in such status may activate stall prevention (OL), activating protective function such as overcurrent shutoff (E.OC
) and electronic thermal relay function (E.THT, E.THM).
In addition, it could cause the inverter to fail.
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4
MEMO
18
MEMO
19
REVISIONS
Print Date
Nov., 2007
*Manual Number
IB-0600348ENG-A
*The manual number is given on the bottom left of the back cover.
Revision
First edition
20
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