Danfoss VLT FC 102 Series Design Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

8.4.7 The PKE FieldThe PKE field contains two subfields: Parameter commandand response AK, and parameter number PNU:15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0130BA268.10PKE IND PWE high PWElowAK PNUParametercommandsand repliesParameternumberFigure 8.10 PKE FieldBits no. 12-15 transfer parameter commands from masterto follower and return processed follower responses to themaster.Bit no. Parameter command15 14 13 120 0 0 0 No command0 0 0 1 Read parameter value0 0 1 0 Write parameter value in RAM (word)0 0 1 1 Write parameter value in RAM (doubleword)1 1 0 1 Write parameter value in RAM andEEPROM (double word)1 1 1 0 Write parameter value in RAM andEEPROM (word)1 1 1 1 Read/write textTable 8.5 Parameter Commands Master ⇒ FollowerBit no. Response15 14 13 120 0 0 0 No response0 0 0 1 Parameter value transferred (word)0 0 1 0 Parameter value transferred (doubleword)0 1 1 1 Command cannot be performed1 1 1 1 text transferredTable 8.6 Response Follower⇒ MasterIf the command cannot be performed, the follower sendsthis response:0111 Command cannot be performed- and issues the following fault report in the parametervalue (PWE):PWE low(Hex)Fault Report0 The parameter number used does not exist1 There is no write access to the defined parameter2 Data value exceeds the parameter's limits3 The sub index used does not exist4 The parameter is not the array type5 The data type does not match the definedparameter11 Data change in the defined parameter is notpossible in the adjustable frequency drive'spresent mode. Certain parameters can only bechanged when the motor is turned off82 There is no bus access to the defined parameter83 Data change is not possible because the factoryset-up is selectedTable 8.7 Parameter Value Fault Report8.4.8 Parameter Number (PNU)Bits no. 0-11 transfer parameter numbers. The function ofthe relevant parameter is defined in the parameterdescription in chapter 8.11.1 Control Word According to FCProfile (8-10 Control Profile = FC profile).8.4.9 Index (IND)The index is used together with the parameter number toread/write-access parameters with an index, e.g.,15-30 Alarm Log: Error Code. The index consists of twobytes, a low byte and a high byte.Only the low byte is used as an index.Installation and Set-up Design GuideMG11BC22 Danfoss A/S © Rev. 06/2014 All rights reserved. 1518 8