i950 Hardware: Identify devices for "Faster engagement of the holding brake"
Question:
How can the user determine whether an existing i950 hardware supports the "Faster engagement of the holding brake" function?
Answer:
Backround:
By lowering the holding brake voltage to 75% after the brake is released, a faster engagement of the 24V holding brake at x106 can be achieved. This function is activated by setting Holding brake control: Holding brake supply voltage 0x2820:22 = 75: Reduction on. The function 'faster engagement of the holding brake' is supported by current i950 hardware. If older hardware is used (without the changes described in 1. and 2.) the voltage reduction would not be executed. The brake is permanently controlled with 24 V as long as it is to remain released. The brake would take longer to engage.
The identification of the i950 hardware that supports the function 'faster brake engagement' is different depending on the size of the device.
1. For devices of all sizes with the imprint 19 27 (calendar week 27 in 2019) or later, the parameterized lowering can be implemented by the hardware. The hardware is identified by the date of manufacture, which is printed on the type plate on the right-hand side of the device in the format (JJ KW).
2. In the course of a further hardware revision (limited to sizes 6 - 9 => 22 -110 kw), a further reduction of the brake closing time was achieved with activated brake voltage reduction.
The production was gradually changed. This means that this revision can only be identified by the material number of the device. The material number (8 digits) is also located on the type plate on the right-hand side of the device and is part of the serial number.
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