One SF-C21 can do the work of four safety relay units. |
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Small, so the unit can be installed in a narrow space Long-life semiconductor output (PNP) adopted for control output and auxiliary output |
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Easy to monitor status with a generalpurpose PLC |
![]() Note: Communication information can not be used for safety control. |
Simply turn a switch to set |
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Refer to " 8 preset logics"
Easy to set the "OFF delay"
The OFF delay time can be easily set by simply turning the rotary switch to any one of patterns.
* The OFF delay time applies to control output 2. In case of setting the OFF delay time to control output 1, the "Configurator SF-C" software is needed.
Password protection prevents inadvertent logic changes
Easy to create a reliable safety circuit Use our "Configurator SF-C" software to build your own safety circuits of connected devices, control logic, output modes, etc. No programming skills required! |
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Customized logics are safety-certified too!! |
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Note:
Please make sure that the combination of logics and input devices complies with each machine safety standard.
Logic No.1:Overall stop control
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When any connected input becomes OFF, the entire control output will be OFF. |
Logic No.2:Parallel muting control
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When the muting input becomes ON, the light curtain will be temporarily disabled. |
Logic No.3:Sequential muting control
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Only when the muting input becomes ON following a predefined sequence, the light curtain will be temporarily disabled. |
Logic No.4:Partial stop control 1
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When the emergency stop input is OFF, the entire control output will be OFF. When any other input is OFF, its corresponding control output will be OFF. |
Logic No.5:Partial stop control 2
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When the emergency stop input or the input from the back-end process becomes OFF, the entire control output will be OFF. When the input from the front-end process becomes OFF, only its corresponding control output will be OFF. |
Logic No.6:Two-hand control
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This control is applied when a two-hand operation switch is used for control.Only when both switches of the two-hand operation switch are operated within 0.5 sec., control output will be ON. |
Logic No.7:OR control
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Even when the guard (input A) is OFF, if the enabling switch is ON the control output will be ON. If either the emergency switch or input B becomes OFF, the entire control output will be OFF regardless of the status of the input A and emergency switch. |
Logic No.8:Operation mode selection control
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Only when mode selection using the key selector is followed by the enabling switch being turned ON, the control output will be ON regardless of the open / close status of the guard. |
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TITLE | DOCUMENT TYPE | SIZE |
SF-C21 | Catalog | 2491 KB |
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SF-C21 Overview of additional features | Catalog | 1680 KB |
SF-C21 | Manual | 5046 KB |
SF-C21 | Manual | 932 KB |