Panasonic M1S Series User manual

For speed control of 3-phase induction motor
Low-Noise Inverter M1S Series
Operating Instructions
Be sure to provide the customer with a copy of this manual.
●Thank you for purchasing a Panasonic Inverter.
●Be sure to read the instructions thoroughly before attempting to operate the
inverter. After reading, be sure to keep in a safe place for future reference.
Industrial and Appliance Motor Division, Motor Company
Matsushita Electric Industrial Co., Ltd

‑2‑
CONTENTS
Safety Precautions･･････４
Introduction ････････････８
●When unpacking･････････････８
●Inverter model check ･････････８
System Configuration ･･ １２
１２１２
１２
and Wiring
●Wiring general view･････････ １２
●Applicable peripheral ･･･････ １３
equipment
●Wiring ･････････････････････ １４
●Terminal function ･･･････････ １４
●Precautions when wiring ････ １６
Protective Functions ･･･２６
●Protective functions･････････ ２６
●Method of resetting trip･･････ ２８
Detalied Explanation ･･･ ３１
of Parameters
Specifications････････････ ４５
Before use
Preparation and
adjustment
If necessary
Application and
Specifications

‑3‑
CONTENTS
Parts Identification･･････９
●Inverter･････････････････････９
Precautions･････････････１０
●Note the following ･････････１０
precautions in order to use
the inverter properly.
Parameter Setting･･････１７ Operation Method･････２０
●Parameter overview････････１７ ● Selection of operation ･･････２０
●Parameter configuration ･････１７ commands
and list of parameters ●How to change operation････ ２０
●Setting ･･･････････････････１７ command
●Operation function･･････････ ２０
Test Operation･･････････１９
●Pre-operation inspections ･･･１９
●Test operation ･････････････１９
Maintenance/ ･･･････････２９ Servicing ････････Backcover
Inspection
Troubleshooting････････３０
Outer Dimensions ････４６
Parameter Setting ････４７
Before use
If necessary Preparation and Adjustment
Application
and Spec.

‑4‑
Safety Precautions
Precautions that must be heeded in order to protect the user and others from harm and
prevent property loss or damage are as follows:
■
■■
■The extent of injury or damage that could be suffered by improper
use contrary to directions is ranked as follows:
DANGER Situation involving danger which could result in death or serious
injury if equipment is handled incorrectly.
CAUTION Situation involving danger which could result in medium to light
injury, or property damage if equipment is handled incorrectly.
Items labeled as CAUTION could be connected with core serious consequences,
depending upon the circumstances. In any case, these instructions are extremely important
and should be observed in all cases.
■
■■
■Installation
CAUTION
●Install on non-combustible material such as metal.
Failure to do so could result in fire.
●Do not locate near combustibles.
Doing so could result in fire.
●Do not carry by the front case when moving the inverter.
Doing so is dangerous and could result in injury if dropped.
●Do not allow foreign material such as metal chips to get inside the inverter.
Doing so could result in fire.
●Be sure to install on a base capable of supporting the inverter’s weight in
accordance with the directions giving in the instruction manual.
Failure to do so could result in the inverter dropping or falling.
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‑5‑
■
■■
■Wiring
DANGER
●Make sure the power is cut off before handling wiring.
Failure to do so could result in electrical shock or fire.
●Be sure to install a no-fuse breaker (NFB).
Failure to do so could result in fire.
●Be sure to ground the GND terminal.
Failure to do so could result in electrical shock or fire.
●Have wiring work done a licensed electrician.
Failure to do so could result in electrical shock or fire.
●Be sure to install the inverter before wiring.
Failure to do so could result in electrical shock or fire.
CAUTION
●Do not ground the AC power source with the output terminals (U/T1, V/T2, W/T3).
Doing so could result in injury or fire.
●Make sure the voltage of the AC power source agrees with the rated voltage of the
inverter.
If not, it could result in injury or fire.
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‑6‑
Safety Precautions
■
■■
■Operation
DANGER
●Be sure to mount the case and cover before turning the power on. Never remove
the case or cover while the inverter is receiving power.
Failure to mount or removing the case/cover could result in electric shock.
●The operator should secure the area before turning the power on or off.
Failure to do so could result in injury.
●Never operate the switches with wet hands.
Doing so could result in electric shock.
●Never touch the terminals of the inverter when it is charged with power, even when
it is not running. Doing so could result in electric shock.
●If the retry function is selected, the inverter could unexpectedly start operating
again if tripped. Do not approach the inverter in the condition.
Doing so could result in injury.
●If trip reset is carried out with the operate signal ON, the inverter could
unexpectedly start operating again. Do not approach the inverter in the condition.
Doing so could result in injury.
CAUTION
●The radiator and regenerative resistor become very hot.
Touching these parts could result in skin burning injury.
●The inverter can be easily set to operate at speeds ranging from low to high. Set
the operating speed so that it the motor and machine tolerance is not exceeded.
Failure to do so could result in injury.
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‑7‑
■
■■
■Maintenance/inspection
DANGER
●Wait for at least 5 minutes after turning off the power to perform inspections.
Failure to do so could result in electric shock.
●Maintenance and inspection should not be performed by anyone except a qualified
repairman.
The repairman should remove all metallic objects (watch, rings, etc.) before
performing maintenance or inspection.
Use only insulated tools when performing maintenance or inspection.
Failure to do so could result in electric shock or injury.
■
■■
■Other
DANGER
●Absolutely DO NOT modify the inverter in any way.
Doing so could result in electric shock, injury or fire.
GENERAL PRECAUTIONS
The diagrams given in this instruction manual may show the cases, covers or safety
breakers removed in order to show details.
When operating, be sure to return the cases, covers or safety breakers and operate
as specified in the manual.
When disposing of the inverter, treat it as industrial waste.
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‑8‑
Introduction
When unpacking
・Is the model correct?
・Was the equipment damaged in transport?
If there is anything wrong with the equipment, contact your Panasonic
dealer.
Inverter model check
Nameplate
Product No.
Consult your Panasonic dealer regarding products with communication functions.
Ｍ
１Ｓ
０
８
３
Ｃ
Ｓ
Ａ
Code Motor capacity
01
02
04
08
0.1 kW
0.2 kW
0.4 kW
0.75 kW
Code Voltage class
1
2
3
Single-phase 100 V
Single-phase 200 V
3-phase 200 V
Code Interface specs.
A
B
C
D
Without communication function/
standard type (NPN logic)
Without communication function/
standard type (PNP logic)
With communication function/
standard type (NPN logic)
With communication function/
standard type (NPN logic)
Code Operation panel specs.
S
V
N
Without volume (standard)
With volume
Blank cover
Code Regenerative brake specs.
A
CWithout regenerative brake circuit With regenerative brake circuit (built-in)
Series name
Model number
Rated input
Rated output
Production number
(serial number)
Panasonic
PanasonicPanasonic
PanasonicＭ１Ｓ０８３ＣＳＡ
ModelNo

‑9‑
Parts Identification
Outer appearance
・You can remove the
operation panel using the
operation panel fixing
screws.
・You can remove the case by
removing the case fixing
screw and pulling the lower
claw outward.
In case of M1S083CSA
With operation panel removed With case removed
・
・・
・Be very careful of static electricity when wiring.
・
・・
・After wiring, always replace the case and the operation panel to their
original positions.
Panasonic
PanasonicPanasonic
Panasonic
Operation panel
Case
GND terminal
GND terminal
Operation panel
fixing screws
・Volume is mounted for
the products with volume.
Operation panel
connector
Case fixing
screw
Charge
lamp
DC reactor terminal Power terminals
Regenerative brake resistor terminals Motor terminals
Control terminals
Communication
connector
Factory-installed
option

‑10‑
Precautions
Note the following precautions in order to use the inverter properly.
1. Arrange for the power source capacity to be between 1.5 to 500kVA the inverter's
capacity. An excessively high peak current may flow to the power input circuit, and
damage the converter section if the wiring length between the power source and the
inverter is shorter than 100 m with a power source exceeding 500kVA, or the phase-
advancing capacitor is switched on the power source side. In this case, provide
individual power factor-enhancing AC reactors that match the inverter's capacity on
the inverter input side.
2. Do not connect the phase-advancing capacitor to the output side of the inverter. Doing
so could result in damage to the phase-advancing capacitor.
3. Do not provide a magnetic contactor between the inverter and motor. To turn the
motor on/off, use the RUN switch on the control panel or the control input terminal.
Avoid frequently turning the magnetic contactor, provided on the power source, on
and off.
4. Operating the motor by the inverter could increase leakage current and trip the earth
leakage breaker. In this case, use earth leakage breakers designed for high frequency
for this system and other systems.
5. Take the following precautions if using a built-in electronic thermal relay contained in
the inverter:
・Check the rated current of your 3-phase induction motor, and set the appropriate
electronic thermal value.
・Use one motor for each inverter.
6. If operating the inverter with multiple motors connected in parallel, select an inverter of
a capacity that does not exceed the total rated current of the inverter. When
calculating by total output of the motor, the inverter’s rated current may be exceeded,
depending on the type of motor.
7. The total wiring length between inverter and motor should not exceed 30 meters. If the
wiring is to be longer than this, you should provide a reactor, etc., between inverter
and motor.
8. Install the inverter securely to avoid injuries in the case of an earthquake.
9. Before running the inverter following an earthquake, check installation of the inverter
and motor and make sure they are safe to operate.

‑11‑
Installation
Install the inverter properly to prevent equipment failure or accidents.
Inverter
Installation location
①Install the inverter indoors in a place not exposed to rain or direct sunlight. The inverter
is not waterproof.
②Install in a place not exposed to corrosive/flammable gases, grinding fluid, oil mist, metal
powder or chips.
③Place with adequate ventilation, which is not exposed to excessive humidity, dirt or dust.
④Place not subject to vibration.
Environmental conditions
Item Conditions
Ambient temperature −10 〜50℃(Must not freeze)
Single-phase input specifications: −10 to 40℃
Ambient humidity Max. 90%RH（Must be no condensation）
Storage temperature −20℃〜65℃(Must not freeze)
Storage humidity Max. 90 %RH（Must be no condensation）
Protection structure IP40（Built-in the panel）
Vibration Max. 5.9 m/s2（10 〜60Ｈz）
Elevation Max. 1000 m
* Short-term temperature during transport
Mounting direction and clearance
・Provide sufficient clearance for effective cooling.
Make sure ambient temperature doesn’t exceed allowable temperature at position indicated
by X in the figure above.
Inverter
Min.
50 mm
30 mm
×
×30 mm
Min. 100 mm
Min.
10 mm Min. 10 mm Min.
50 mm
Min.
50 mm
30 mm
×
Inverter Inverter

‑12‑
System Configuration and Wiring
Wiring general view
Main circuit
Inverter
Motor
GND
No-fuse breaker (NFB)
or Earth leakage breaker
Used to protect the power line.
Interrupts the circuit in the case of excessive
current.
* Use an anti-harmonic earth leakage
breaker for the inverter.
Noise filter (NF)
Blocks noise from the power line.
A
lso reduces effect of noise from the servomotor.
Magnetic contactor (MC)
Turn main power to servomotor on/off.
Used with surge absorber mounted.
AC reactor (AC-L)
Reduces harmonic current of the power source.
Refer to “Option.”
DC reactor (DC-L)
Reduces harmonic current of the power
source.
Refer to “Option.”
Regenerative resistor
Improves regenerative control capacity.
For the regenerative brake circuit built-in type only.
Refer to “Option.”

‑13‑
Applicable peripheral equipment
Wiring apparatus selection
(1) Selection of no-fuse breaker, magnetic contactor, thermal relay, (Matsushita Electric
Works No.) and wiring
Wiring (mm2) *1 Inverter No.
Applicabl
e motor
(kW)
No-fuse
breaker
(Rated current)
Magnetic
contactor
(Contact configuration)
Thermal
relay
(Current adjustment range) Main
circuit Control circuit
MIS011*** 0.1 BBP25
(5A) BMFT61842N (3P+1a) BMF902E (0.95〜1.45A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS021*** 0.2 BBP35
(5A) BMFT61842N (3P+1a) BMF904E (1.7〜2.6A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS041*** 0.4 BBP310
(10A) BMFT61842N (3P+1a) BMF907E (2.8〜4.2A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS012
3*** 0.1 BBP35
(5A) BMFT61842N (3P+1a) BMF901E (0.5〜0.75A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS022
3*** 0.2 BBP35
(5A) BMFT61842N (3P+1a) BMF902E (0.95〜1.45A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS042
3*** 0.4 BBP35
(5A) BMFT61842N (3P+1a) BMF904E (1.7〜2.6A) 2.0
(
AWG14
)
0.75
(
AWG18
)
MIS082
3*** 0.75 BBP310
(10A) BMFT61842N (3P+1a) BMF907E (2.8〜4.2A) 2.0
(
AWG14
)
0.75
(
AWG18
)
Use the same size of wire for GND terminal ( ) as the wire for main circuit.
(2) Relay selection
For relays used in control circuits such as the control input terminal, you should use a
small signal relay (min. guaranteed current of 1mA or less) in order to prevent poor
contact.
＜Examples＞Matsushita Electric Works: DS type, NK type, HC type
Omron: G2A type
(3) Control circuit switch selection
If using a switch instead of a relay, use a switch for extremely small current in order to
prevent poor contact.
＜Example＞Nihon Kaiheiki: M-2012J-G
*1 Motor cable is used if the distance between inverter and motor is 20 meters or less. If more than 20 meters,
use a larger cable.

‑14‑
System Configuration and Wiring
Wiring
Standard wiring diagram
Asterisk (*) indicates factory-set function.
In case of M1S083CSA
Terminal function
(1) Main circuit terminal
Upper PD P R/L1S/L2 T/L3 E◎Lower P PB U/T1 V/T2 W/T3 E◎
Terminal
No. Terminal name Function description
Terminal
screw size Tightening torque N·m
R,S,T
L1,L2,L3 Power source input terminal Connects to 3-phase or single- phase commercial power source M3.5 0.8 ~ 1.0
U,V,W
T1,T2,T3 Output terminal Connects to 3-phase induction motor M3.5 0.8 ~ 1.0
E GND terminal Terminal for grounding inverter
base M4 1.0 ~ 0.2
PD, P Reactor terminal DC reactor connection terminal M2.5 0.3 ~ 0.5
P, PB Regenerative resistor
terminal Regenerative resistor connection terminal M2.5 0.3 ~ 0.5
T/L3
S/L2
R/L1
External frequency setting volume
1/4W, 5kΩ, B characteristic
Frequency meter*
1mA (full scale)
▽
FOUT
Ｇ
FIN1
５Ｖ
Ｅ
C1
Ｏ１
W/T3
V/T2
U/T1
(Emitter)
VCE max.=DC24V
ICmax.=50mA
Trip signal
Contact capacity
DC30V 1A
(Frame ground)
(Collector)
trip output*
IM
Motor
Short (direct current reactor connection terminal)
Be sure to provide proper treatment
for the shielded wire terminals.
Forward/stop switch
Reverse/stop switch
Frequency setting selection (1)
Frequency setting selection (2)
Trip reset*
Power source
NFB
GND terminal
PD Ｐ
Ｉ１
Ｉ２
Ｉ３
Ｉ４
Ｉ５
Ｇ
12V
ＮＯ
C2
ＮＣ
PB
Ｐ
●Connect to R/L1, S/L2 for single-phase
Brake resistor
connection terminal
Be sure to ground (max. 100Ω)
Main circuit
Control circuit
Not built-in to
products without
regenerative
brake circuit.

‑15‑
(2) Control terminal
<Terminal screw size: M2, Tightening torque 0.25 ~ 0.3 N·m>
Terminal No. Terminal name Function description
５Ｖ Power source
terminal for fre-
quency setting + 5VDC applied. I max. = 20 mA
１２Ｖ Power source
terminal for
input terminal + 12VDC applied. I max. = 20 mA
ＦＩ Input terminal
for frequency
setting
Frequency can be set when 0 ~ +5VDC (or 0 - +10VDC) is input
between “FIN1” and “G.”
If using these terminals, change “ frequency command” to
−or −.
ＧGround for
control Common ground terminal for contact input.
ＦＯＵＴ Frequency
meter terminal
Outputs voltage proportional to output frequency between “FOUT” and
“G.” Connect full-scale 1 mA DC ammeter. You can output pulses
synchronized with output frequency by altering “ FOUT switch”.
Ｉ１ Forward/stop
command
terminal
Ｉ２ Reverse /stop
command
terminal
Forward by shorting between “I1” and “G”; stop by release
Reverse by shorting between “I2” and “G”; stop by release
You can change “I1” to run/stop command and “I2” to forward/reverse
command by altering“ I1.12” function selection.
Ｉ３
Ｉ４
Ｉ５
Frequency
setting
selection
terminal
You can select the following functions by " operation mode selection."
Input terminal
ＧGround for
control Contact input common ground terminal.
Ｏ１
C1 Output signal
terminal
Open-collector output terminal. (Not maintained when power is OFF.)
You can select contents by “ output signal (1) selection.”
Factory setting: “01” is trip signal (transistor ON when tripped)
“O1” (collector) IC max. = 50mA
“C1” (emitter) VCE max. = 24VDC
Output terminal
ＮＣ
ＮＯ
C2
Output signal
terminal
Relay output terminal. 30VDC 1A (max.)
(Not maintained when power is OFF.)
You can select output contents by “ relay output polarity selection.”
Not built-in to products without regenerative brake circuit.
NO NC 01 FI FO I1 I3 I5
C2 C1 5V G 12V I2 I4 G
Operation mode I3 I4 I5
2-speed
operation mode Forward jogging Reverse jogging
4-speed
operation mode
8-speed
operation mode

‑16‑
System Configuration and Wiring
Precautions when wiring
The inner circuit is still energized with a high voltage after the input power is turned off. Do
not touch the inverter for at least 5 minutes after turning off the power.
Main circuit
(1) The inverter will be damaged if you invert the connections of the power input terminal
and motor output terminal (U/L1, V/L2, W/L3). Absolutely do not invert connections.
(2) Do not ground the main circuit terminal.
(3) Do not short motor output terminals (U/L1, V/L2, W/L3) together.
(4) The GND terminal (E) is the frame ground (FG) for the inverter.
(5) Be sure to use insulated crimp terminals for connecting to the main circuit terminals.
Control circuit
(1) Use the wires with the insulation removed, as shown below, to wire the control circuit.
If the exposed area is too long, there is the possibility of a short occurring with the
adjacent wire. If it is too short, the wire could be pulled. Twist the bare wires when
wiring, so that they will not get loose.
(2) Use a wire which diameter is less than 0.9 mm when wiring using a bar terminal or single
wire. If it is larger than 0.9 mm, the screw thread may be damaged when tightened.
(3) Do not apply more than 24VDC, 50mA to the output terminals (O1, C1), or apply
voltage to terminal in reverse.
(4) Input terminal configuration is internally pulled up from approx. +12V by approx. 3.3kΩ.
You can control by contact or by open collector output. Do not apply external voltage.
NPNlogic PNPlogic
(5) Do not short the frequency setting power source terminal (5V) and ground for control
terminal (G).
(6) To directly drive the relay by the output terminals (O1, C1), mount a flywheel diode (FD).
(7) Use shielded wires for the cable to be connected to the control circuit.
ＦＤ（１００Ｖ １Ａ）
ＲＹ
Ｃ1O1
<Examples> Fuji Electric ERA15-01
ERB12-01
Pay attention to polarity of diode.
Photo coupler
5.5 mm ± 1 mm
power
source
I1 ~ I5
+12V
Internal circuits of I1 – I5 are as follows:
G
I1 ~ I5
+12V
Internal circuits of I1 – I5 are as follows:
+12V power
source

‑17‑
Parameter Setting
Setting
Operation Panel
Frequency Hz is displayed when in the normal monitor mode.
You can display synchronized rotations for the parameter " display power."
5-digit LED Displays output frequency, set frequency or display power, cause of error, or
parameter.
2-digit LED Displays parameter No. Direction of rotation is displayed in the monitor mode.
MODE
switch
Switch for changing monitor mode. Pressing the switch changes the mode in the
cycle of:
Output frequency Converter voltage Motor current
Switch for selecting parameter No. mode and parameter value mode, setting
parameter value.
DATA SET
switch ●Mode description
△▽
switch Enable you to select parameters, and set/change contents.
RUN switch Commands the inverter to run.
STOP
switch Commands the inverter to stop.
Monitor
mode Displays output frequency, converter voltage or motor current. Mode when the power is turned on.
When in the parameter No. mode or parameter value mode,
pressing the MODE switch changes to the monitor mode.
Parameter
No. mode Displays parameter No.（〜）by flashing.
When in the monitor mode, pressing the DATA SET switch
changes to the parameter No. mode.
Parameter
value mode Displays parameter contents (setting value) by flashing.
You can change the setting value with the △▽switches.
After changing the setting, press the DATA SET switch to
enter the setting in the memory.
r/min
Hz
Ａ
Ｖ
ＳＴＯＰ
ＤＡＴＡ
ＳＥＴ
ＲＵＮ
ＭＯＤＥ
^
^
5-digit LED
2-digit LED

‑18‑
Power ON Monitor mode Hz
A MODE
V
Note) Available when " frequency command
selection" is set to  .
MODE DATA SET
●Parameter No. display LED will flash.
Change (select) parameter numbers
with UP and DOWN keys.
MODE DATA SET DATA SET
Storage Storage ●Parameter value display LED will flash.
Data will be stored every time UP key or
DATA SET key is pressed in the parameter
value mode. Change (select) parameter values with UP
and DOWN keys.
Output frequency
↓
MODE
↓
Current
↓
MODE
↓
Converter voltage
△
▽
Parameter
value mode
Can set directly No. 0
speed setting with UP and
DOWN ke
y
s.
Parameter No.
mode
△
▽△ ▽
△
▽△ ▽

‑19‑
Test Operation
Pre-operation inspections
After installing and wiring, inspect the following before running the inverter.
(1) Is the wiring connected correctly? (Especially power input terminals R/L1, S/L2 and
T/L3, output terminals U/T1, V/T2 and W/T3, load side short or ground)
(2) Does input power comply with the rating?
(3) Are there any places that could be shorted by wire cuttings, etc?
(4) Are any screws or terminals loose?
Test operation
(1) Conduct the following for safe operation.
①Set the motor so that the motor can be operated independently.
②Set all of the input of the control terminal base to "OFF" (Open)
(2) Turn ON the power and run a test operation by following the procedures shown below.
Operation panel
Operation Switch LED display Remarks
①Turn on the
power  
 
・Turn ON the power in the monitor
mode. (Output frequency is
displayed.)
When setting with the volume on the operation panel, set " frequency command selection" to
Volume. (See page 21.) Operation panel
Operation Switch LED display Remarks
②Frequency
setting Press△.
Press△ to set
frequency.
 
 
 
 
・No. 0 speed frequency is
displayed. (Output setting: 0.0 Hz)
・Set No. 0 speed frequency to 60
Hz.
③Return to the
monitor mode Press MODE. 
 
④Run command
(forward
rotation)
Press RUN. 
 
・Frequency is gradually changed.
・Rotating direction is displayed.
⑤Stop
command Press STOP. 
 
・Frequency is gradually changed.
<Points to check when running a test operation>
(1) Is the motor running smoothly? Are there any abnormal sounds or vibrations?
(2) Are acceleration and deceleration smooth?
(3) Is the direction of rotating of the motor correct?

‑20‑
Operation Method
Selection of operation commands
You can perform the following six kinds of operation using the frequency command and run
command on the operation panel or using the terminal block with the MIS series inverters.
Frequency command Run command Parameter setting
Operation
panel or
volume
Terminal
block
"FIN1"
Operation
panel Terminal block Frequency command
selection Run command selection
1○○
*1 ○*1 or (both)
2○○*1 ○*1 or (both)
3○○ or (panel)
4○○ or (panel)
5○○
or (terminal block)
6○○
or (terminal block)
"frequency command selection  " and " run command selection  " are
factory-set values.
How to change operation command
(Ex.) Change " frequency command selection" to " " from " ".
Operation panel
Operation Switch LED display
①Turn on the
power  
 
②Parameter No.
mode Press DATA SET.
Press △, and select
the parameter No.
  
 
Press △, and select the parameter No.
③Parameter value
mode Press DATA SET.
Store the setting with
MODE or
DATA SET
.

 
Press △, and select the parameter No.
*1 When the operation command is set for the operation panel and you are using the terminal block, the
terminal block has priority.
RUN switch on the operation panel is valid only when both the forward/stop switch "I1" and the
reverse/stop switch "12" on the terminal block are "OFF." When either or both of "I1" and "I2" on the
terminal block is turned "ON," the previously set of the RUN switch will be cancelled.
