Delta PD-01 User Manual

Delta PD-01 User Manual Manual pdf 20 page image

PD-01 PROFIBUS-DP ModuleDELTA ELECTRONICS, INC. ALL RIGHTS RESERVED 17Examples for PKW mechanismExample 1: Read data of parameter P0003To read value of P0003, set the request ID to 1 (request parameter value - word).Because P0003 is less than 2000, the Para Page Select is 0, thus, the data sequenceare as follows:Master Æ PD-01 : 1003 0000 0000 0000 request value of P0003PD-01 Æ Master : 1003 0000 0000 1770Request ResponseWord 1 (PKE) 1003 Word 1 (PKE) 1003Word 2 (IND) 0000 Word 2 (IND) 0000Word 3 (PWE1) 0000 Word 3 (PWE1) 0000Word 4 (PWE2) 0000 Word 4 (PWE2) 1770PD-01 responds the value of P0003. All parameters in VFD series Drives are 16-bitvalue, so the value is transferred in PWE2 (4th word). The value of P0003 is 0x1770(6000 decimal), in VFD-M series Drives, it is “Maximum Output Frequency”.Example 2: Read command frequency in VFD series Drives (0x2102)To read value of command frequency, set the request ID to1, we should set the ParaPage Select because the parameter address is greater than 2000. The address0x2102 is 8450 in decimal, if set Page Select to 4, then the Basic PNU is 8450 –4*2000 = 450 (0x1c2), thus, the data sequence are as follows:Master Æ PD-01 : 11C2 2000 0000 0000 request value of address0x2102PD-01 Æ Master : 11C2 2000 0000 0868Request ResponseWord 1 (PKE) 11C2 Word 1 (PKE) 11C2Word 2 (IND) 2000 Word 2 (IND) 2000Word 3 (PWE1) 0000 Word 3 (PWE1) 0000Word 4 (PWE2) 0000 Word 4 (PWE2) 0868