ABB DSBB 170 57310256-FA Apply mechanical brake plate

Description

For hoists. ASTAT contains functions for evaluation of overspeed and applying the mechanical brake. Check with

applicable regulations if a back up in the form of another back up switch, which is wired directly in the emergency

trip circuit of the crane, is needed.

One possibility for overspeed monitoring is to detect a High frequency on DI number 15.

An inductive limit switch with DC-frequency 100 Hz from the list above can be used. Mounting can be on the low

speed side of the gearbox, or directly sensing the key of the motor shaft.

Consider following rules for mounting on the shaft:

• Synchronous speed is maximally 1200 rpm
• Keys part of the perimeter is minimally 8% for 1200 rpm (4% for 600-rpm motor)
• Radius for mounted key is minimally 3 mm larger than any other part of the shaft circumference.
• Mounting distance between limit switch and key is tentatively 1,5 mm less than the sensing distance of the

sensor.

• The function shall be verified by moving the limit switch 1,0 mm closer as well as 1,0 mm apart from the final

mounting position.

The above-described key arrangement is according to DIN 6885, sheet 1, form A for a motor shaft with diameter

38 mm, corresponding to shaft height 132.

Some modern PC systems do not include a RS232 port as standard equipment but instead include one

or more USB ports.

To connect to ASTAT hardware using an USB port you need an USB to Serial Converter. This is a small

(and cheap) piece of hardware that connects directly into a free USB port or to an USB hub and registers

a serial port in the OS (Operating System).

After the OS has detected the converter it registers a serial port; this port can then be selected in the

Communication Port list in the Communication Settings dialog. ASTAT Tool.

Note: Because ASTAT Tool enumerates serial ports at start up you will have to restart the application if

you have connected an USB to Serial Converter while the ASTAT Tool was running.

The TCP/IP connection requires additional hardware and is available in crane systems after agreement

with ABB.

Details: If you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.
Price issue: If you find that other suppliers offer a cheaper price for the same product, we are also willing to provide you with a reference price and give you further discounts.
Contact Us:+86 18106937731
Whatapp:+86 15359293870
Email: geabbdcs@gmail.com / 2872270648@qq.com
Contact Person: Chen

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