{"product_id":"mitsubishi-electric-qd60p8-g-melsec-q-series-inter-channel-isolated-pulse-input-unit","title":"Mitsubishi Electric QD60P8-G MELSEC Q Series Inter-Channel Isolated Pulse Input Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eOptimized for high-density pulse logging in multi-source electrical environments, the \u003cstrong\u003eMitsubishi Electric QD60P8-G\u003c\/strong\u003e serves as a high-performance 8-channel pulse input interface for the MELSEC Q control platform. By featuring complete inter-channel galvanic isolation, this module mitigates ground potential differences and signal interference when monitoring disparate field instruments. The unit processes single-phase pulse inputs across flexible voltage ranges, making it an ideal choice for complex utility tracking, flow metering, and synchronization tasks within industrial automation infrastructures.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8 Isolated Channels:\u003c\/strong\u003e Independent electrical isolation between all input channels protects the backplane and adjacent modules from common-mode noise and ground loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConfigurable Counting Speeds:\u003c\/strong\u003e Selectable input filters ranging from 0.1 pps up to 30 kpps allow matching with low-frequency mechanical contacts or high-frequency solid-state encoders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Signal Levels:\u003c\/strong\u003e Supports both 5VDC and 12 to 24VDC signal levels for direct interfacing with various sensor types.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Counter Modes:\u003c\/strong\u003e Operates in both linear counter and ring counter modes with support for 16-bit binary sampling and 32-bit integrated count values.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Isolation Rating:\u003c\/strong\u003e Withstands up to AC 1780 V for 1 minute between channels, ensuring survivability in harsh electrical environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eUtility and energy monitoring (integrating pulse outputs from gas, water, and electricity meters).\u003c\/li\u003e\n  \u003cli\u003eFlow rate calculation and fluid dosing control systems.\u003c\/li\u003e\n  \u003cli\u003eConveyor tracking and material throughput logging.\u003c\/li\u003e\n  \u003cli\u003eHigh-density piece counting and production rate monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 0.75rem;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Code\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eQD60P8-G\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMELSEC Q Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eInter-channel Isolated Pulse Input Unit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e8 channels (individually isolated)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCount Input Signal Phase\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1-phase input\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eSignal Voltage Levels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5VDC \/ 12 to 24VDC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMaximum Counting Speed\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e30 kpps (selectable: 30 kpps, 10 kpps, 1 kpps, 100 pps, 50 pps, 10 pps, 1 pps, 0.1 pps)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCount Ranges\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSampling: 16-bit binary (0 to 32767)\u003cbr\u003eIntegrated count: 32-bit binary (0 to 99999999)\u003cbr\u003eInput pulse value: 32-bit binary (0 to 2147483647)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCounter Modes\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eLinear counter, Ring counter\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eWithstand Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBetween channels: AC 1780 V for 1 min\u003cbr\u003eBetween AC terminals and ground: AC 1500 V for 1 min\u003cbr\u003eBetween DC terminals and ground: AC 500 V for 1 min\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInsulation Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDC 500 V, 5 MOhm or more\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eWiring Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e18-point screw terminal block (M3 screws)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eI\/O Points Occupied\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e32 points (intelligent function module classification)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInternal Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.58 A (at 5VDC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eDimensions (H x W x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e98 mm x 27.4 mm x 90 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.17 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1.10 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch4\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe QD60P8-G fits directly into any standard Q-series backplane. For legacy migrations, ensure that your existing engineering configuration tool (GX Works2 or GX Works3) has the corresponding QD60P8-G parameter profiles installed. If upgrading from non-isolated pulse input modules, review your grounding layouts as the isolated design of this model removes the necessity of external loop isolation barriers.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen configuring the input pulse counting speed, select the filter threshold closely matching your physical signal frequency. Setting the filter rate excessively high (e.g., 30 kpps for a 10 pps flow meter) can cause mechanical contact bounce or electrical transient noise to register as extra, spurious counts. Ensure that the logic level voltage corresponds to the specific physical wiring points to prevent thermal overload on the input channels.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways route the pulse input cables separately from high-voltage AC motor lines to prevent electromagnetic coupling. To secure high-noise immunity, utilize shielded twisted-pair (STP) cabling, grounding the shield at a single point on the control panel chassis. Do not over-torque the M3 terminal screws beyond the recommended limits (typically 0.42 to 0.58 N-m) to prevent strip damage to the internal connector block.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all primary and auxiliary power sources before installing, removing, or wiring the module. Failure to de-energize the PLC backplane and field wiring prior to module insertion can result in permanent processor damage, module destruction, or electrical shock hazard.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the QD60P8-G onto the Q-series base unit by inserting the module's bottom retaining tab into the base slot, and then pivot the module firmly into place until it seats securely.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSecure the module to the base unit using the top mounting screw. This maintains connection integrity under high-vibration conditions.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eWire your pulse sources to the 18-point terminal block matching your signal level configurations (5VDC or 12 to 24VDC pins).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eApply backplane and field power, then proceed with digital filtering configuration and counter mode calibration within your GX Works programming software environment.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102151991659,"sku":"QD60P8-G","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/QD60P8-G-lc4vv0bbyrm.png?v=1776137983","url":"https:\/\/www.plcprotech.com\/id\/products\/mitsubishi-electric-qd60p8-g-melsec-q-series-inter-channel-isolated-pulse-input-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}