{"product_id":"safety-interface-board-abb-asto-21c","title":"Safety Interface Board ABB ASTO-21C","description":"\u003ch2\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/ABB_480x480.png?v=1697009149\" alt=\"\" width=\"60\" height=\"25\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eConfigured for Safe Torque Off (STO) execution in ABB ACS800 drive control architecture, the \u003cstrong\u003eABB ASTO-21C\u003c\/strong\u003e (\u003cstrong\u003eASTO-21C\u003c\/strong\u003e) safety interface board provides direct electrical shutdown control of inverter gate drive signals within R7i to R8i frame power modules. The \u003cstrong\u003eABB ASTO-21C\u003c\/strong\u003e implements dual-channel STO logic that removes torque-generating capability by inhibiting semiconductor switching states without disconnecting main power rails.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eNo official suffix segmentation or variant encoding is defined for ASTO-21C beyond its fixed ordering code 3AUA0000065265. Functional behavior is defined by STO Option +Q967 integration within ACS800 system configuration parameters.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModelBrand\u003c\/td\u003e\n\u003ctd\u003eABB ASTO-21C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eFinland \/ ABB manufacturing network\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eNot specified in manufacturer public data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eNot specified in manufacturer public data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperatingTemp\u003c\/td\u003e\n\u003ctd\u003e0 degC to 50 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePowerConsumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC +\/-10 percent, approx 40 mA total (20 mA per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Function\u003c\/td\u003e\n\u003ctd\u003eSafe Torque Off (STO) dual-channel hardware disable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Drives\u003c\/td\u003e\n\u003ctd\u003eABB ACS800 series R7i to R8i frames\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Thresholds\u003c\/td\u003e\n\u003ctd\u003eLow \u0026lt; 5 VDC, High \u0026gt; 17 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003eUp to 300 m (twisted pair, shielded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eABB Drive Control \u0026amp; Backplane Integration Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe ABB ASTO-21C integrates into ACS800 drive control logic where backplane communication timing and firmware compatibility govern STO activation latency and fault response sequencing. Within ABB drive architectures, deterministic internal control routing ensures STO trigger propagation is synchronized with inverter gate blocking signals, preventing unintended pulse-width modulation output.\u003c\/p\u003e\n\u003cp\u003eIn frame-level integration (R7i to R8i), control board interaction relies on structured I\/O density scaling and firmware flash compatibility alignment between safety option boards and main control firmware. This ensures consistent STO state enforcement across varying inverter load conditions and switching frequencies.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does ASTO-21C support hot-swap replacement in ACS800 systems?\u003cbr\u003eA: No hot-swap operation is supported. Power removal is required prior to board insertion or extraction due to STO control line direct coupling to gate driver inhibition circuits.\u003c\/p\u003e\n\u003cp\u003eQ: What is the failure behavior of STO channels under voltage loss?\u003cbr\u003eA: Both STO channels default to torque-inhibited state when control voltage falls below valid logic threshold (\u0026lt; 5 VDC), forcing inverter output switching inhibition.\u003c\/p\u003e\n\u003cp\u003eQ: Can ASTO-21C operate with 115 VAC or 230 VAC control input?\u003cbr\u003eA: No. Application of AC voltage will damage the board. Only 24 VDC +\/-10 percent is permitted for control logic supply.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eSTO input wiring shall use shielded twisted pair conductors with minimum cross-section of 0.5 mm2 (20 AWG). Shield termination shall be bonded at control cabinet earth reference point to reduce common-mode noise coupling into STO logic lines. Cable routing shall maintain separation from inverter output motor leads to avoid induced transient coupling.\u003c\/p\u003e\n\u003cp\u003eEnsure both STO channels are wired as independent safety paths. Do not bridge channel inputs. Maintain verified 24 VDC supply stability before commissioning. All installation and commissioning shall be performed with drive main power isolated and DC link discharged.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg height=\"25\" width=\"60\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/ABB_480x480.png?v=1697009149\"\u003eOther Attributes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSeries: Advant DCS\/800xA\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: \u003cspan\u003e \u003c\/span\u003e\u003cspan id=\"dnn_ctr1219_View_LabelCountryOfOrigin\"\u003eGermany\/Sweden\/Finland\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLead Time: In Stock, 2 Working Days\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/ABB_480x480.png?v=1697009149\" alt=\"\" width=\"60\" height=\"25\"\u003e\u003cspan\u003eIn Stock \u003c\/span\u003e\u003cspan\u003eHot Items \u003c\/span\u003eof ABB\u003c\/h2\u003e\n\u003ctable width=\"774\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"437\"\u003e3BHB003154R0101 3BHL000389P0104  5SHX2645L0004\u003c\/td\u003e\n\u003ctd width=\"337\"\u003e3BHE02195R0124\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHE009681R0101 3BHB012961R0001 5SHX2645L0002\u003c\/td\u003e\n\u003ctd\u003eXVC724BE102 3BHE009017R0102\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHE009681R0101 3BHB013088R0001 5SHY3545L0010\u003c\/td\u003e\n\u003ctd\u003eUNS3020 HIEE205010R0003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHE022333R0101 5SHX0660R0002 5SXE05-0158\u003c\/td\u003e\n\u003ctd\u003e3BHE003855R0001\/UNS 2882A-P,V1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHB005171R0101 3BHL000986P3105 5SHY3545L0002\u003c\/td\u003e\n\u003ctd\u003e3BHE009319R0001\/UNS 2881B-P,V1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC10272001R0101 5SXE10-0181 5SHY6545L0001\u003c\/td\u003e\n\u003ctd\u003e3BHE009949R0002\/UNS 4881B,V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHB003387R0101 3BHL00385P0101 5SHX0845F0001\u003c\/td\u003e\n\u003ctd\u003e3BHE014967R0002\/UNS 2880B-P,V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHB003386R0101 3BHL000387P0101 5SHX1445H0002\u003c\/td\u003e\n\u003ctd\u003eUFC765AE102 3BHE003604R0102\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC10272001R0101\/5SXE10-0181\/5SHY55L4500\u003c\/td\u003e\n\u003ctd\u003eXVC767AE105 3BHB007209R0105\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC10272001R0101\/5SXE10-0181\/5SHY55L4520\u003c\/td\u003e\n\u003ctd\u003eXVC768115 3BHB0072R115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHB003230R0101 3BHL000392P0101 5SHX1060H0001\u003c\/td\u003e\n\u003ctd\u003eXVC768115 3BHB007211R115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3BHB003387R0101 3BHL000385P0101 5SHX0845F0001\u003c\/td\u003e\n\u003ctd\u003eAFC094AE02 HIEE200130R0002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5SXE10-0181 5SHY55L4520 AC10272001R0101\u003c\/td\u003e\n\u003ctd\u003eARC093AE01 HIEE300690R0001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eOur Competitive Brands\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e- ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H\u0026amp;B Freelance 2000，DSQC Robots，IGCT \/ IGBT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- GE General Electric Field Control, Genius I\/O, QuickPanel, RX3i PacSystem, Series 90, Series 90, Series VersaMax\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Bently Nevada 3300 System, 3500 System\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e- Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:+8618030205725\"\u003e\u003cspan\u003e\u003cstrong\u003eTEL: +86 18030205725 \u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e    \u003ca href=\"maito:manskiwong@cambia.cn\"\u003e\u003cspan\u003e\u003cstrong\u003eE-MAIL: manskiwong@cambia.cn\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53047693705525,"sku":"AST0-21C","price":17150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0834\/0789\/6885\/files\/AST0-21C.jpg?v=1782726990","url":"https:\/\/www.newgenplc.com\/vi\/products\/safety-interface-board-abb-asto-21c","provider":"New-Gen Automation Limited","version":"1.0","type":"link"}