Panasonic SF-C21 User manual

INSTRUCTION MANUAL
Safety Control Unit
SF-C21
ME-SFC21 No.0077-22V
Thank you very much for purchasing Panasonic products. Read this Instruction Man-
ual carefully and thoroughly for the correct and optimum use of this product. Kindly
keep this manual in a convenient place for quick reference.
●This is an abridged instruction manual simply explains mounting, wiring and etc.
For detailed handling instructions, refer to “SF-C21 Instruction Manual” avail-
able for download at the following.https://panasonic.net/id/pidsx/global
●Instruction Manuals in the following languages are published on our Web site.
Japanese, English, Chinese, French, Spanish, Italian
• Le manuel d’instructions français est publié sur notre site web.
• El Manual de Instrucciones en español se encuentra publicado en nuestro sitio web.
• Il manuale di istruzioni italiano è pubblicato sul nostro sito web.
1SAFETY PRECAUTIONS
● Use this device as per its specications. Do not modify this device since its func-
tions and capabilities may not be maintained and it may malfunction.
●This device has been developed / produced for industrial use only.
●Use of this device under the following conditions or environments is not presup-
posed. Please consult us if there is no other choice but to use this device in such
an environment.
1) Operating this device under conditions or environments not described in this
manual.
2) Using this device in the following elds: nuclear power control, railroad, aircraft,
auto mobiles, combustion facilities, medical systems, aerospace development, etc.
●In case of installing this device to a particular machine, follow the safety regula-
tions in regard to appropriate usage, mounting (installation), operation and main-
tenance. The users including the installation operator are responsible for the intro-
duction of this device.
●Note that this device may be damaged if it is subject to a strong shock (if it is
dropped onto the oor, for example).
●Use this device by installing suitable protection equipment as a countermeasure
for failure, damage, or malfunction of this device.
●Before using this device, check whether the device performs properly with the
functions and capabilities as per the design specications.
●In case of disposal, dispose this device as an industrial waste.
WARNING
♦Machine designer, installer, employer and operator
• The machine designer, installer, employer and operator are solely responsible
to ensure that all applicable legal requirements relating to the installation and
the use in any application are satised and all instructions for installation and
maintenance contained in the instruction manual are followed.
• Whether this device functions as intended to and systems including this de-
vice comply with safety regulations depends on the appropriateness of the ap-
plication, installation, maintenance and operation. The machine designer, in-
staller, employer and operator are solely responsible for these items.
♦Engineer
• The engineer would be a person who is appropriately educated, has wide-
spread knowledge and experience, and can solve various problems which
may arise during work, such as a machine designer, or a person in charge of
installation or operation etc.
♦Operator
• The operator should read this instruction manual thoroughly, understand its
contents, and perform operations following the procedures described in this
manual for the correct operation of this device.
• In case this device does not perform properly, the operator should report this to
the person in charge and stop the machine operation immediately. The machine
must not be operated until correct performance of this device has been conrmed.
♦Environment
• Do not use a mobile phone or a radio phone near this device.
• This device starts running approximately 2 seconds after the power is turned
on. Make sure that the control system is operational when the device starts up.
• Do not use the device in places where:
1) The device is exposed to direct sunlight
2) Dew condensation may occur due to sudden changes in temperature
3) The ambient air contains corrosive or ammable gas
4) There is a high level of dust, metallic dust, or salt content
5) The device may be exposed to organic solvents such as benzene, thinner,
or alcohol and/or strong alkaline substances such as ammonia or caustic
soda, or any such substances exist in the ambient air
6) The device may be directly exposed to vibration or impact or to water drops
7) The device may be exposed to interference from nearby high-voltage lines,
high-voltage equipment, power wires, motor equipment, an amateur radio
station or other transmitter, or a device with large switching surges (the de-
vice must be placed at a distance of 100mm or greater from any interfer-
ence sources)
♦Machine in which this device is installed
• This device starts the performance after 2 seconds from the power ON. Have
the control system started to function with this timing.
♦Wiring
• Do not work on (connect or remove etc.) the device while the power is ON.
Failure to follow this precaution could result in an electric shock.
• All electrical wiring should conform to the regional electrical regulations and laws.
The wiring should be done by engineer(s) having the special electrical knowledge.
• Do not run the wires together with high-voltage lines or power lines or put
them in the same raceway. This can cause malfunction due to induction.
• Do not control the device only at one control output.
♦Maintenance
• When replacement parts are required, always use only genuine supplied re-
placement parts. Do not use a third-party part because doing so could cause
the device to malfunction, possibly resulting in a death or serious injury.
• The periodical inspection of this device must be performed by an engineer
having the special knowledge.
• After maintenance or adjustment, and before starting operation, test this de-
vice following the procedure specied in “ 9MAINTENANCE.”
• Clean this device with a clean cloth. Do not use any volatile chemicals.
♦Others
• Never modify this device. Failure to follow this precaution may cause the de-
vice to malfunction, possibly resulting in a death or serious injury.
2CONFIRMATION OF PACKED CONTENTS
□
SF-C21 1 pc.
□Quick Instruction Manual (Japanese, English, Chinese) 1 pc. each language
3PART NAMES
Password selection indicator (Orange)
Delay selection indicator (Orange)
Logic selection indicator (Orange)
Mode selection switch
Indicator A USB connector (miniB)
Indicator B
Terminal block
for external
power supply
Indicator C
DIN rail stopper
Terminal block for
internal power supply
DIP switch for RS-485
Terminal block for
RS-485
Rotary switch
Terminal block for
I/O 1
7-segment indicator (Red)
Terminal block for
I/O 2
[Indicator A]
Input 1 indicator (Orange)
Input 5 indicator (Orange)
Input 3 indicator (Orange)
Input 7 indicator (Orange)
Input 2 indicator (Orange)
Input 6 indicator (Orange)
Input 4 indicator (Orange)
Input 8 indicator (Orange)
[Indicator B]
Output 1 indicator (Green)
Auxiliary output 1 indicator (Orange)
Output 3 indicator (Green)
Auxiliary output 3 indicator (Orange)
Output 2 indicator (Green)
Auxiliary output 2 indicator (Orange)
Output 4 indicator (Green)
Auxiliary output 4 indicator (Orange)
[Indicator C]
Operation indicator (Green)
Muting indicator (Orange)
Interlock 1 indicator (Yellow)
Setting indicator (Orange)
Interlock 2 indicator (Yellow)
4MOUNTING
●When installing this device, make sure that it is correctly oriented: The device
must be installed vertically with its indicators and terminal blocks facing the opera-
tor side in order to ensure heat dissipation.
Installed in vertically
reversed orientation
Horizontally installed Sideways installed
●In addition, make sure that the device’s upper, low-
er, left, and right surfaces are spaced by a 50mm or
more from surrounding objects such as other devic-
es and wiring ducts.
50mm
or more
50mm
or more
50mm
or more
50mm
or more
● Do not install the unit above devices which generate heat such as heaters, trans-
formers or large scale resistors.
●In order to eliminate any e󰀨ects from noise emission, power wires and electro-
magnetic devices should be kept a 100mm or more away from the surfaces of the
device. When installing the unit behind the doors of the control board, be espe-
cially careful to secure clearances as above.
100mm or more
SF-C21
Other
devices

●Installation to and removal from a DIN rail
Compatible DIN rail models (based on JIS C 2812)
- TH35-7.5Al or TH35-7.5Fe
Installing
1. Press in the DIN rail stopper.
2. Fit the nail on the opposite side of the DIN rail stopper with the DIN rail.
3. Fit the DIN rail stopper side of the unit with the DIN rail by pressing it in.
2
3
1
Removing
1. Insert the at-head screwdriver into the groove in the DIN rail stopper.
2. Draw out the DIN rail stopper.
3. Push up the control unit toward the opposite side of the DIN rail stopper.
4. Remove the control unit by pulling its lower side while maintaining it in the
pushed-up position (step 3).
1
2
3
4
CAUTION
Do not attempt to pull the control unit without rst drawing out the DIN rail stopper
or the nail will break.
●Installing the unit directly in a control panel using screws
• The unit can be installed directly in a control panel by means of M4 pan head
screws (length: 12mm or more) (purchase separately). The machine screws
should be tightened with a torque of 1.2N·m or smaller.
M4 pan head screws (length: 12mm or more)
(Purchase separately)
Mounting hole nished size (Unit: mm)
37
82
●Installation environment
• Use the unit as per its specications.
- Installation place: The unit is designed for use in a control panel.
- Ambient temperatures: -10 to +55ºC
- Ambient humidity: 30 to 85% RH (No dew condensation)
- Pollution degree: 2
- Overvoltage category: II or lower
- Usable altitude: 2,000m above sea level or lower
5CONNECTION
WARNING
●In case of using the interlock function, be sure there exists no operator inside of
the dangerous area. It causes death or serious injury without the conrmation.
●The reset switch shall be placed in area where all over the dangerous zone shall
be comprehend and out side of the dangerous zone.
●Make sure manually to operate system for starting override function. Further-
more, the system shall be placed in area where all over the dangerous zone
shall be comprehend and outside of the dangerous zone.
●Using override function, make sure that there exist no operator in the dangerous
zone, which may result in death or serious injury.
●Power Supply Unit
CAUTION
Wire correctly using a power supply unit which conforms to the laws and standards
of the region where this device is to be used. If the power supply unit is non-con-
forming or the wiring is improper, it can cause damage or malfunction of this device.
<Reference>
The power supply unit must satisfy the conditions given below.
1) Power supply unit authorized in the region where this device is to be used.
2) Power supply unit SELV (safety extra low voltage) / PELV (protected extra low
voltage) conforming to EMC Directive and Low-voltage Directive (In case CE
Marking conformity is required.)
3) Power supply unit conforming to the Low-voltage Directive and with an output of
100VA or less.
4) The frame ground (F.G.) terminal must be connected to ground when using a
commercially available switching regulator.
5) Power supply unit with an output holding time of 20ms or more.
6) In case a surge is generated, take countermeasures such as connecting a surge
absorber to the origin of the surge.
7) Power supply unit corresponding to CLASS 2 (In case C-TÜV US Listing Mark
conformity is required.)
●Terminal arrangement
Terminal block
dimensions Terminal No.
Terminal name Function
Terminal block for
I/O 1
1 IN1 Safety input 1
2 T1 Safety input 1 / test output
3 IN2 Safety input 2
4 T2 Safety input 2 / test output
5 IN3 Safety input 3
6 T3 Safety input 3 / test output
7 IN4 Safety input 4
8T4 Safety input 4 / test output
9 MUTE1 Muting indicator output 1_1
10 NC Not connected
11 INT11 Reset input 1 / test output
12 INT12 Reset input 1
13 AUX1 Auxiliary output 1
14 AUX2 Auxiliary output 2
15 AUX3 Auxiliary output 3
16 AUX4 Auxiliary output 4
Terminal block for
I/O 2
17 IN5 Safety input 5
18 T5 Safety input 5 / test output
19 IN6 Safety input 6
20 T6 Safety input 6 / test output
21 IN7 Safety input 7
22 T7 Safety input 7 / test output
23 IN8 Safety input 8
24 T8 Safety input 8 / test output
25 MUTE2 Muting indicator output 1_2
26 NC Not connected
27 INT21 Reset input 2 / test output
28 INT22 Reset input 2
29 OUT1 Control output 1
30 OUT2
31 OUT3 Control output 2
32 OUT4
Terminal block for
internal power
supply
- V1 24V
Power supply for safety input
- G1 0V
Terminal block for
RS-485
- + Transmission line (+)
- - Transmission line ( - )
- + Transmission line (+)
- - Transmission line ( - )
- E Terminal station setting
Terminal block for
external power
supply
- V2 24V Power supply for control output
Power supply for auxiliary output
- G2 0V
●Compatible terminals / wires
Terminal
block name
Terminal block
model No.
Ferrule terminal Solid wire / twisted wire
With an insu-
lation sleeve
(mm2)
Without an
insulation
sleeve (mm2)
Terminal
length
(mm)
Solid wire
(mm2)
Twisted
wire
(mm2)
AWG
Stripped
wire length
(mm)
Terminal block
for I/O 1
FMC 1,5/16-ST-3,5
0.25-0.75 0.25-1.5 10 0.2-1.0 0.2-1.5 24-16 10
Terminal block
for I/O 2
Terminal block
for internal
power supply
FMC 1,5/2-ST-3,5
Terminal block
for RS-485
FMC 1,5/5-ST-3,5
Terminal block
for external
power supply
FKC 2,5/2-ST 0.25-2.5 0.25-2.5 10 0.2-2.5 0.2-2.5 24-12 10
<Terminal block> Manufactured by Phoenix Contact
●Connecting to the terminal block
• When connecting to the terminal block, insert
a solid wire or twisted wire (lead wire) with a
ferrule (rod) terminal, as shown in the gure
right, into the hole till it stops. (Ferrule termi-
nals are not included in the product package.)
• The wire is locked when it is properly insert-
ed. However, do not to pull the wire with an
excessive force or the cable may break.
• When connecting a twisted wire (lead wire)
without using a ferrule terminal, insert the
wire to the innermost of the connecting hole
while pressing the release button.
• To remove the wire, draw it out while pressing
the release button.
Release
button
Insertion
hole
Ferrule terminal
Flat-head screwdriver
Lead wire

6WIRING DIMENSIONS
●Example: preset logic No.1 manual reset
IN5
IN6
OUT1
IN7
OUT3
IN8
V1
MUTE2
INT21
T5
T6
OUT2
T7
OUT4
T8
G1
(NC)
INT22
IN1
T1
T2
INT12
T3
AUX2
T4
AUX4
G2
(NC)
IN2
INT11
IN3
AUX1
IN4
AUX3
V2
MUTE1
Load Load
Load Load
Load Load
Load Load
7COMMUNICATION FUNCTIONS
●MODBUS RTU specication
Item Setting range Factory default
Interface RS-485
Maximum transmission
distance 100m
Data length 8 bits
Communication preference
setting
Either DIP switches take or software
tools take precedence DIP switches take precedence
Parity bit presence With or without With
Parity bit type Odd / Even Odd
Stop bit 1 bit / 2 bits 1 bit
Communication address 1 to 247 1
Baudrate
9,600 bps
19,200 bps
38,400 bps
57,600 bps
115,200 bps
9,600 bps
●Settings of the DIP switch for RS-485
No. Setting item Input status
OFF ON
1Communication preference
setting DIP switches take precedence Software tools take precedence
2 Parity bit presence With Without
3 Parity bit type Odd Even
4 Stop bit 1 2
5Communication address 1 SW5: OFF, SW6: OFF
Communication address 2 SW5: ON, SW6: OFF
6Communication address 3 SW5: OFF, SW6: ON
Communication address 4 SW5: ON , SW6: ON
7 Baudrate 9,600 bps 19,200 bps
8Not used - -
9 Not used - -
10 Not used - -
●Example of RS-485 wiring
E
MODBUS
RTU
master
+
-
SF-C21 SF-C21
+ +
++
--
-
-
EE
<Reference>
●When the device is used as a terminal station, short-circuit the - terminal and E
terminal.
●Use shielded twisted pair cables.
●The transmission line cables (shielded cables) should be connected in a cross-
over fashion and grounded at one end.
8FUNCTION
●For details on the functionality of this device (such as preset logic selection, inter-
locking, external device monitoring, and software tools), refer to “SF-C21 Instruc-
tion Manual.”
9MAINTENANCE
<Reference>
●In the event of a failure or error, refer to “SF-C21 Instruction Manual” and pro-
vide the details to an authorized engineer.
● If the problem cannot be resolved internally, contact our o󰀩ce.
●Please make a copy of this checklist, check each inspection item in the respec-
tive square, and le the list for record.
●Daily inspection
WARNING
Be sure to inspect the following items prior to operation and conrm that there is no
error. Operating this device without inspection or in an error condition can result in
death or serious injury.
Check column Inspection item
□There is no defect, fold, or damage in the wiring.
□The terminal blocks are free from dirt or foreign matter deposited on them.
□The corresponding connectors have been connected securely.
□ The unit is securely installed to the DIN rail or securely mounted by means of machine screws.
●Periodic inspection (every six months)
WARNING
Be sure to inspect the following items every six months and conrm that there is no
error. Operating this device without inspection or in an error condition can result in
death or serious injury.
Check column Inspection item
□The structure of the machine does not obstruct any safety mechanism for stopping operation.
□ No modication has been made in the machine controls which obstructs the safety mechanisms.
□The output of this device is correctly detected.
□The wiring from this device is correct.
□The actual number of operation cycle (time) of the limited lifetime parts (relay, etc.) is less than
their rated operation cycles (time).
□No screws or connectors of this device are loose.
●Inspection after maintenance
• Check all of the inspection items categorized as “Daily inspection” and “Periodic
inspection (every six months)” if any of the following is true:
1. When changes are made to the settings of the device.
2. When any parts of this device are replaced.
3. When some abnormality is felt during operation.
4. When the device installation place or environment is changed.
5. When the wiring method or wiring layout is changed.
6. When a component or components of a FSD (Final Switching Device) to which
the control output is connected are replaced.
7. When FSD (Final Switching Device) setting is changed.

11 DIMENSIONS (Unit: mm)
37
45 5
85
4
7
82
(30)
(4.6)
90
27.5
(19)
(25)
Suitable for 35mm width DIN rail
2-ø4.4
12 CE MARKING DECLARATION OF CONFORMITY
Itemized Essentials of EU Declaration of Conformity
Manufacturer’s Name: Panasonic Industrial Devices SUNX Co., Ltd.
Manufacturer’s Address: 2431-1, Ushiyama-cho, Kasugai, Aichi 486-0901, Japan
EU Representative’s Name:
Panasonic Marketing Europe GmbH Panasonic Testing Center
EU Representative’s Address: Winsbergring 15, 22525 Hamburg, Germany
Product: Safety Control Unit
Model Name: SF-C21
Trade Name: Panasonic
Application of Council Directive:
- 2006/42/EC Machinery Directive
- 2014/30/EU EMC Directive
- 2011/65/EU RoHS Directive
Tested according to:
- EN ISO 13849-1:2015
- EN 62061
- EN 55011
- EN 61000-6-2
- EN IEC 63000
Type Examination: Certied by TÜV SÜD Product Service GmbH Ridlerstrasse
65 80339 München Germany
Panasonic Industrial Devices SUNX Co., Ltd.
https://panasonic.net/id/pidsx/global
Please visit our website for inquiries and about our sales network.
PRINTED IN JAPAN © Panasonic Industrial Devices SUNX Co., Ltd. 2021
10 SPECIFICATIONS
Model No. SF-C21
Supply
voltage
Power supply for
internal 24V DC+10
-15 Ripple P-P 10% or less
Power supply for
external 24V DC+10
-15 Ripple P-P 10% or less
Current
consumption
Power supply for
internal 200mA or less
Power supply for
external 100mA or less
Safety input (IN1 to IN8) 4 × 2 inputs Rated voltage: Same as voltage of the power supply for internal
ON level Input voltage: 18V, Input current: 3.5mA
OFF level Input voltage: 5V, Input current: 1.0mA
Rated input current Approx. 5mA
Input impedance Approx. 4.7kΩ
Duration of detectable ON
state 10ms or more
Duration of undetectable
OFF state 0.7ms or less
Control output
(OUT1 to OUT4)
PNP open-collector transistor with 2 outputs × 2
• Maximum source current: 300mA / output
• Applied voltage: Same as voltage of the power supply for external
• Residual voltage: 2.5V or less
• Leakage current: 100μA or less (Including power supply OFF condition)
Output mode True: ON, False: OFF
ON delay function Incorporated
OFF delay function Incorporated
Short-circuit protection Incorporated
Response time OFF response: 10ms or less, ON response: 100ms or less
Auxiliary output
(AUX1 to AUX4)
(Non-safety output)
PNP open-collector transistor with 1 output × 4
• Maximum source current: 60mA / output
• Applied voltage: Same as voltage of the power supply for external
• Residual voltage: 2.5V or less
• Leakage current: 100μA or less (Including power supply OFF condition)
Output mode
(Factory defaults)
AUX1: Negative logic output of OUT1 and/or OUT2 (ON when OUT1 and/or OUT2 are OFF)
AUX2: Negative logic output of OUT3 and/or OUT4 (ON when OUT3 and/or OUT4 are OFF)
AUX3: Reset trigger output (ON when reset condition is met)
AUX4: Lockout output (OFF when lockout)
Output mode
Any of the auxiliary outputs
can be customized using
the software tools
• Negative logic output of OUT1 and/or OUT2 (ON when OUT1 and/or OUT2 are OFF)
• Negative logic output of OUT3 and/or OUT4 (ON when OUT3 and/or OUT4 are OFF)
• Positive logic output of OUT1 and/or OUT2 (ON when OUT1 and/or OUT2 are ON)
• Positive logic output of OUT3 and/or OUT4 (ON when OUT3 and/or OUT4 are ON)
• Diagnostic result output A, B, C, or D in response to input block 1 to 4 (ON
when logic is true)
• Internal logic circuit diagnostic result output E, F, or G (ON when logic is true)
• Reset trigger output (ON when reset condition is met)
• Lockout output (OFF when lockout)
• Muting indicator output (When muting and/or when override ON)
• Monitor output in response to IN1 to IN8 (ON when input)
• No output (normally OFF)
Short-circuit protection Incorporated
Response time 10ms or less
Muting indicator output
Semiconductor photo MOS relay output × 1
• Maximum load current: 60mA
• Supply voltage: Same as voltage of the power supply for internal
• Residual voltage: 2.5V or less
• Leakage current: 100μA or less (Including power supply OFF condition)
Output mode When muting and/or when override ON
Short-circuit protection Incorporated
Response time 10ms or less
Interlock function Incorporated
Lockout release function Incorporated
External device monitor function Incorporated
Communication function
(MODBUS RTU)
• Interface: RS-485
• Protocol: MODBUS RTU
• Maximum transmission distance: 100m
• Maximum number of units that can be connected: 8 units (slaves)
Logic selection function
• No.0: Customizable control
• No.1: Overall stop control
• No.2: Parallel muting control
• No.3: Sequential muting control
• No.4: Partial stop control 1
• No.5: Partial stop control 2
• No.6: Two-hand control
• No.7: OR control
• No.8: Operation mode selection control
Logic setting function Input mode, control mode, output mode, reset mode, auxiliary output mode
Pollution degree 2
Overvoltage category II
Usable altitude 2,000m or less
Startup time after power on 2 sec. or less
Maximum cable length 100m
Connection method
Input / output and power supply: Detachable spring cage terminal blocks
RS-485: Detachable spring cage terminal block
USB: Mini B male
Weight (main unit only) Approx. 190g
Applicable
standards
Safety
IEC 61508-1 to 7, EN 61508-1 to 7 (SIL3), ISO 13849-1:2015(Up to Category 4 and
PLe), EN IEC 63000
IEC 61131-2, IEC 61010-2-201, IEC 62061 (SILCL3), UL 61010-1
UL 61010-2-201, UL 1998
EMC IEC 61000-6-2, IEC 61326-3-1, EN 55011
Related standards IEC 60947-1, IEC 60947-5-1, IEC 60947-5-2, IEC 60947-5-5, IEC 60947-5-8
IEC 61496-1, IEC TS 62046, ISO 13851
Note: Do not use or store this device in a pressurized environment beyond the atmospheric pressure at the sea level.