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Panasonic Industry / Automation Controls

SF-C21｜Safety Control Unit SF-C21

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This product has been confirmed that it does not contain the 6 substances specified in EU RoHS Directive 2011/65/EU and the 4 substances specified in 2015/863/EU.

Product Number

SF-C21

Part Number

SF-C21

Product

Safety Control Unit

Product Name

 Safety Control Unit SF-C21

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*Specifications and design of the products are subject to change without notice for the product improvement.

Spec Detail

Specifications and design of the products are subject to change without notice for the product improvement.
ItemSpecifications
Part NumberSF-C21
Product NumberSF-C21
Products NameSafety Control Unit
The price of the productPlease contact our office
Applicable standards : SafetyIEC 61508-1 to 3, EN 61508-1 to 3 (SIL3), ISO 13849-1:2015 (Category 4, PLe), IEC 61131-2, IEC 61010-2-201, IEC 62061 (SILCL3), UL 61010-1, UL 61010-2-201, UL 1998
Applicable standards : EMCIEC 61000-6-2, IEC 61326-3-1, EN 55011
Related standardsIEC 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
Applicable regulations and certificationsCE Marking (Machinery Directive, EMC Directive, RoHS Directive), UKCA Marking [Supply of Machinery (Safety)Regulations, EMC Regulations, RoHS Regulations], TÜV SÜD certification, Korea's Radio Waves Act conformity registration
Supply voltage : Power supply for internal24 V DC +10 -15 % Ripple P-P10 % or less
(Note) "Power supply for internal" is the power supply for safety input. The power supplies for internal and external are insulated.
(Note) The power supply unit connected to this device must satisfy the conditions below.
- Output voltage within 20.4 V to 26.4 V DC (Ripple P-P: 10 % or less.)
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Directive and Low-voltage Directive (In case CE Marking conformity is required.)
- Power supply unit conforming to the Low-voltage Directive and with an output of 100 VA or less
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Regulations and Low-voltage Regulations (In case UKCA Marking conformity is required.)
- Power supply unit with an output holding time of 20 ms or more.
- Power supply unit corresponding to CLASS 2 (In case C-TÜV US Listing Mark conformity is required.)
Supply voltage : Power supply for external24 V DC +10 -15 % Ripple P-P10 % or less
(Note) "Power supply for external" is the power supply for control output / auxiliary output. The power supplies for internal and external are insulated.
(Note) The power supply unit connected to this device must satisfy the conditions below.
- Output voltage within 20.4 V to 26.4 V DC (Ripple P-P: 10 % or less.)
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Directive and Low-voltage Directive (In case CE Marking conformity is required.)
- Power supply unit conforming to the Low-voltage Directive and with an output of 100 VA or less
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Regulations and Low-voltage Regulations (In case UKCA Marking conformity is required.)

- Power supply unit with an output holding time of 20 ms or more.
- Power supply unit corresponding to CLASS 2 (In case C-TÜV US Listing Mark conformity is required.)
Current consumption : Power supply for internal200 mA or less
(Note) "Power supply for internal" is the power supply for safety input. The power supplies for internal and external are insulated.
(Note) The power supply unit connected to this device must satisfy the conditions below.
- Output voltage within 20.4 V to 26.4 V DC (Ripple P-P: 10 % or less.)
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Directive and Low-voltage Directive (In case CE Marking conformity is required.)
- Power supply unit conforming to the Low-voltage Directive and with an output of 100 VA or less
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Regulations and Low-voltage Regulations (In case UKCA Marking conformity is required.)

- Power supply unit with an output holding time of 20 ms or more.
- Power supply unit corresponding to CLASS 2 (In case C-TÜV US Listing Mark conformity is required.)
Current consumption : Power supply for external100 mA or less
(Note) "Power supply for external" is the power supply for control output / auxiliary output. The power supplies for internal and external are insulated.
(Note) The power supply unit connected to this device must satisfy the conditions below.
- Output voltage within 20.4 V to 26.4 V DC (Ripple P-P: 10 % or less.)
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Directive and Low-voltage Directive (In case CE Marking conformity is required.)
- Power supply unit conforming to the Low-voltage Directive and with an output of 100 VA or less
- Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage) conforming to the EMC Regulations and Low-voltage Regulations (In case UKCA Marking conformity is required.)

- Power supply unit with an output holding time of 20 ms or more.
- Power supply unit corresponding to CLASS 2 (In case C-TÜV US Listing Mark conformity is required.)
Safety input (IN1 to IN8)2 inputs x 4, Rated voltage: Same as the voltage of the power supply for internal
Safety input (IN1 to IN8) : ON levelInput voltage: 18 V
Input current: 3.5 mA
Safety input (IN1 to IN8) : OFF levelInput voltage: 5 V
Input current: 1.0 mA
Safety input (IN1 to IN8) : Rated input current 5 mA approx.
Safety input (IN1 to IN8) : Input impedance 4.7 KΩ approx.
Safety input (IN1 to IN8) : Duration of detectable ON state10 ms or more
Safety input (IN1 to IN8) : Duration of undetectable OFF state0.7 ms or less
Control output (OUT1 to OUT4)PNP open-collector transistor with 2 outputs x 2
- Maximum source current: 300 mA / output
- Applied voltage: Same as the voltage of the power supply for external
- Residual voltage: 2.5 V or less
- Leakage current: 100 μA or less (Including power supply OFF condition)
Control output (OUT1 to OUT4) : Output modeTrue: ON
False: OFF
Control output (OUT1 to OUT4) : ON delay functionIncorporated
Control output (OUT1 to OUT4) : OFF delayfu nctionIncorporated
Control output (OUT1 to OUT4) : Short-circuit protection Incorporated
Control output (OUT1 to OUT4) : Response timeOFF response: 10 ms or less
ON response: 100 ms or less
Auxiliary output(AUX1 to AUX4)(Non-safety output)PNP open-collector transistor with 1 output x 4
- Maximum source current: 60 mA / output
- Applied voltage: Same as the voltage of the power supply for external
- Residual voltage: 2.5 V or less
- Leakage current: 100 μA or less (Including power supply OFF condition)
Auxiliary output(AUX1 to AUX4)(Non-safety output) : Output mode (Factory defaults)AUX1: Negative logic of OUT1 / OUT2 (ON when OUT1 / OUT2 is OFF)
AUX2: Negative logic of OUT3 / OUT4 (ON when OUT3 / OUT4 is OFF)
AUX3: Reset trigger output (ON under reset release wait condition)
AUX4: Lockout output (OFF when lockout)
Auxiliary output(AUX1 to AUX4)(Non-safety output) : Output mode (Any of the auxiliary outputs can be customized using the software tool)Negative logic of OUT1 / OUT2 (ON when OUT1 / OUT2 is OFF)
Negative logic of OUT3 / OUT4 (ON when OUT3 / OUT4 is OFF)
Positive logic of OUT1 / OUT2 (ON when OUT1 / OUT2 is ON)
Positive logic of OUT3 / OUT4 (ON when OUT3 / OUT4 is ON)
Outputs A, B, C, and D of diagnosis results of input blocks (ON when logic is true)
Outputs E, F, and G of internal logic circuit diagnostic results (ON when logic is true)
Reset trigger output (ON under reset release wait condition)
Lockout output (OFF when lockout)
Muting indicator output (ON when muting / override)
Monitor output in response to IN1 to IN8 (ON when input)
No output (normally OFF)
Auxiliary output(AUX1 to AUX4)(Non-safety output) : Short-circuit protectionIncorporated
Auxiliary output(AUX1 to AUX4)(Non-safety output) : Response time10 ms or less
Muting indicator outputSemiconductor photo MOS relay output x 1
- Maximum load current: 60 mA
- Supply voltage: Same as the voltage of the power supply for internal
- Residual voltage: 2.5 V or less
- Leakage current: 100 μA or less (Including power supply OFF condition)
Muting indicator output : Output modeON when muting / override
Muting indicator output : Short-circuit protectionIncorporated
Muting indicator output : Response time10 ms or less
Interlock function Incorporated
Lockout release functionIncorporated
External device monitoring functionIncorporated
Communication function (MODBUS RTU)Interface: RS-485
Protocol: MODBUS RTU
Maximum transmission distance: 100 m 328.084 ft
Maximum number of units that can be connected: 8 units (slaves)
Logic selection functionNo.0: Customization 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 functionInput mode, control mode, output mode, reset mode, auxiliary ou tput mode
Pollution degree2
Excess voltage categoryII
Operating altitude2,000 m 6561.680 ft or less
(Note) Do not use or store this device in a pressurized environment beyond the atmospheric pressure at sea level.
Startup time after power on2 sec. or less
PFHD / MTTFD9.73 x 10−10 / 100 years or more
Environmental resistance:Degree of protectionIP20 (IEC)(must be installed in a control panel with protectio n IP54 or higher)
Environmental resistance:Ambient temperature-10 to +55 ℃ +14 to +131 ℉ (No dew condensation or icing allowed), Storage: -25 to +60 ℃ -13 to +140 ℉
Environmental resistance:Ambient humidity30 to 85 % RH, Storage: 30 to 85 % RH
Environmental resistance:Voltage withstandability1,000 V AC for one min.
(All inputs connected together - USB port, all inputs connected together - RS-485 port, USB port - RS-485 port, between all supply terminals connected together and enclosure, all outputs connected together - all input connected together, all outputs connected together - USB port, all outputs connected together - RS-485 port)
Environmental resistance:Insulation resistance20 MΩ, or more, with 500 V DC megger
(All inputs connected together - USB port, all inputs connected together - RS-485 port, USB port - RS-485 port, between all supply terminals connected together and enclosure, all outputs connected together - all input connected together, all outputs connected together - USB port, all outputs connected together - RS-485 port)
Vibration resistance5 to 8.4 Hz frequency, 3.5 mm 0.138 in half amplitude, 8.4 to 150 Hz frequency, Max. acceleration 9.8 m/s2 (1 G), in X, Y and Z directions for two hours each (IEC / EN 60068-2-6)
Environmental resistance:Shock resistance147 m/s2 (15 G) 11 ms in X, Y and Z directions for three times each (IEC / EN 60068-2-27)
Connecting methodInput / output and power supply: Detachable spring cage termina l blocks
RS-485: Detachable spring-cage terminal block
USB: Mini-B male
Cable length100 m 328.084 ft or less
MaterialMain unit enclosure: Polycarbonate / ABS polymer alloy
Enclosure: Polycarbonate
WeightNet weight: 190 g approx.
Gross weight: 320 g approx.

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