Connector Assignments and Functions | 2 |
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Option module RP SBT
2.7.2Brake control and PTC evaluation
Connector assignment X280
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X280 |
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1 | Supply for brake output and PTC evaluation |
| Input |
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2 |
| Reference point for supply |
| Input |
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3 |
| Reference point for Brake control |
| Output |
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4 | Brake control Active ok. |
| Relais output |
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5 |
| PTC |
| Input |
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6 | PTC |
| Input |
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Use of the Brake control
The relay output X290.3 serves for the control of holding brakes. This output is functionally identical to the output X10.23.
The output at X290.3 has the following advantages over X10.23:
The isolation relay contact control electronics corresponds to the basis isolation. I.e. also brake installations (which correspond to the basis isolation) without interface relays, while maintaining the PELV isolation (double) of the drive controller are operated (see X10 connection example chapter 2.3.2)
The brake control possesses an active clamping of over voltages between the two brake connections.
Stronger dimensioning of the brake contact.
Use of the PTC evaluation
The PTC connection serves for the monitoring of the engine temperature. In its function mode it is identical to the port X30.2/6. The following advantage exists over X30.2/6 :
The isolation evaluation circle control electronics corresponds to the basis isolation. I.e. also PTC thermistors (which correspond to the basis isolation) can be evaluated, without waiving the safe separation to the control electronics.
Block diagram / Connector assignment
Circuit diagram
Further details see product manual
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Product Manaul Type: 637f | 45 |