{"id":4602,"date":"2023-11-13T16:09:26","date_gmt":"2023-11-13T16:09:26","guid":{"rendered":"https:\/\/www.rotechsystems.com.au\/?page_id=4602"},"modified":"2025-11-12T13:59:33","modified_gmt":"2025-11-12T13:59:33","slug":"sr-4000","status":"publish","type":"page","link":"https:\/\/www.rotechsystems.com.au\/index.php\/products\/rotech-systems-products\/speed-relays\/sr-4000\/","title":{"rendered":"CSR 4000"},"content":{"rendered":"\n
<\/div>\n\n\n\n
\n

CSR 4000 Speed Relay<\/mark><\/h2>\n\n\n\n

Standard Series<\/h4>\n\n\n\n

Comprising Product Code CSR4### \u2013 ?<\/mark><\/h4>\n\n\n\n

Dual Ac Supply Standard (Optional – 12\/24 Volt Dc)<\/p>\n\n\n\n

Easy Setting Of Required Trip\/Alarm Speed Directly In Rpm<\/p>\n\n\n\n

Extensive range of optional features including automatic start delay (refer to additional information on automatic start delay operation)<\/p>\n\n\n\n

Multiple Ranges, Fixed Start Delay, Etc.<\/p>\n\n\n\n

Three speed ranges are available on each module. Standard ranges are 1-10 rpm, 1-100rpm and 1-1000 rpm. The required range being selected by link on the terminal rail. Other modules are available with ranges covering the speeds 0.01 rpm to 20,000 rpm.<\/p>\n\n\n\n

In normal operation the output relay of the module is energised if the speed of the shaft is above the set level and de-energised if speed is below the set level.<\/p>\n\n\n\n

Front mounted LED\u2019s indicate power on, relay energised, input signal status.<\/p>\n\n\n\n

\n
CSR 4000 – DATA SHEET<\/a><\/div>\n\n\n\n
Commissioning and Testing<\/a><\/div>\n<\/div>\n<\/div>
\"\"<\/figure><\/div>\n\n\n\n
<\/div>\n\n\n\n
\n\n\n\n
<\/div>\n\n\n\n

Optional Automatic Start Delay<\/mark><\/h1>\n\n\n\n
The following option can be included to any CSR 4000 type unit.<\/mark><\/h5>\n\n\n\n

The automatic start delay on the CSR 4000 speed relays operates as follows:<\/strong><\/p>\n\n\n\n

As soon as the main drive is started and the Rotech Motion Sensor\/Encoder starts to
rotate the start delay is initiated.<\/p>\n\n\n\n

The start delay energises the CSR 4000 speed relay for a period of 20 seconds.<\/p>\n\n\n\n

During this period the drive should reach its normal operating speed and the speed
relay will then remain energised.<\/p>\n\n\n\n

If the drive does not reach its normal running speed by the end of the 20 seconds the
speed relay will de-energise and the drive will shut down.<\/p>\n\n\n\n

The 20 second start delay will only re-operate if the speed of the drive drops below
1 RPM and remains below 1 RPM for a period of 20 seconds.<\/p>\n\n\n\n

<\/div>\n\n\n\n
\n\n\n\n
\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/figure>\n\n\n\n
<\/div>\n","protected":false},"excerpt":{"rendered":"

Optional Automatic Start Delay The following option can be included to any CSR 4000 type unit. The automatic start delay on the CSR 4000 speed relays operates as follows: As soon as the main drive is started and the Rotech Motion Sensor\/Encoder starts torotate the start delay is initiated. The start delay energises the CSR …<\/p>\n

CSR 4000<\/span> Read More »<\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"parent":4197,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-4602","page","type-page","status-publish","hentry"],"yoast_head":"\nCSR 4000 -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rotechsystems.com.au\/index.php\/products\/rotech-systems-products\/speed-relays\/sr-4000\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CSR 4000 -\" \/>\n<meta property=\"og:description\" content=\"Optional Automatic Start Delay The following option can be included to any CSR 4000 type unit. 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