Engineering Bulletin #116 M00352 (AKA T-LIMIT-T) Limit Board Installation & Adjustment on Existing Microflite Plus, Ultra, and Ultra 2000 Controllers - M00118 Board Replacements with no Speed Clamping on Cars Using Analog Tachometers (LIMITOT Software)
Limit board uses a processor to monitor car speed and the status of the hoistway limit switches. If the car speed exceeds that which is safe for an approach to the top or bottom terminal floor, the Limit board will open the safety circuit, removing power from the brake and hoist motor.
●The following is an explanation on installation and adjustment of the board. The board can be installed in one of two ways. If you have an existing MicroFlite installation, you are using an analog tachometer, and you do not wish to activate the speed clamping function, follow the procedure that is outlined for an existing installation. If you wish to activate the clamping, follow the procedure for a new installation (Bulletin #104). If you are using a digital encoder, follow the procedure outlined in Bulletin #104. If you have a Series ’90 controller, follow the procedure outlined in Bulletin #110. The board will automatically detect if the speed reference is present and if not, will not clamp the reference, but rather open the fault circuitry.
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Technical Documentation |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2012/12/20 |
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257 KB |
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