A Murrelektronik Company
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5.2.5 PWM(i) OPERATION
ThePWM(i)controlhasmorestatusandcontrolcommandsthanthestandardPWMcontrol.Themoduletakesasetpointforthecurrentcontrol
andclosestheloopaccordingtothevaluesputintotheKpandKi.Themodulealsosendsthecurrentreadingbackviaacurrentstatusmessage.
Allcommandsandstatusareshownbelow.
LoopTuning(KpandKi)
J1939 Output Conguration 3*
Value Name Data Type Byte Bits Description
84(0x54) Command Byte 1 Commandforindexpointer(whichmessageyoursending)
INMODE8A
4 bit 2
1,2,3,4
Mode0x0=disabled, 0x1=Digital Positive, 0x2=Digital Ground, 0x7=Digital Positive Frequency,
0x8= High Speed Counter
INMODE8B 5,6,7,8
Mode0x0=disabled, 0x1=Digital Positive, 0x2=Digital Ground, 0x3= 4-20ma (4000-20000),
0x4= 0-5V DC (0-5000, 0x5= 0-10V DC (0-10000), 0x6= 0-32V DC (0-32000),
0x9= Ratiometric (0-100.0% of source V DC)
Port1AKp
Byte
3 Output1Aproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port1AKi 4 Output1Aintegralsetpoint(0-250=0-2.50,>250=0)default 100
Port1BKp 5 Output1Bproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port1BKi 6 Output1Bintegralsetpoint(0-250=0-2.50,>250=0)default 100
Port2AKp 7 Output2Aproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port2AKi 8 Output2Aintegralsetpoint(0-250=0-2.50,>250=0)default 100
J1939 Output Conguration 4*
Value Name Data Type Byte Bits Description
85(0x55) Command
Byte
1 Commandforindexpointer(whichmessageyoursending)
Port2BKp 2 Output2Bproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port2BKi 3 Output2Bintegralsetpoint(0-250=0-2.50,>250=0)default 100
Port3AKp 4 Output3Aproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port3AKi 5 Output3Aintegralsetpoint(0-250=0-2.50,>250=0)default 100
Port3BKp 6 Output3Bproportionalsetpoint(0-250=0-2.50,>250=0)default 100
Port3BKi 7 Output3Bintegralsetpoint(0-250=0-2.50,>250=0)default 100
Notused 8
*Recommendedstartingvalues:Kp=70,Ki=30.
*Recommendedstartingvalues:Kp=70,Ki=30.
J1939 Output Conguration 4
Value Name Data Type Byte Bits Description
85(0x56) Command
Byte
1 Commandforindexpointer(whichmessageyoursending)
Port4AKp 2 Output4Aproportionalsetpoint(0-250=0-2.50,>250=0) default 100
Port4AKi 3 Output4Aintegralsetpoint(0-250=0-2.50,>250=0) default 100
Port4BKp 4 Output4Bproportionalsetpoint(0-250=0-2.50,>250=0) default 100
Port4BKi 5 Output4Bintegralsetpoint(0-250=0-2.50,>250=0) default 100
Notused 6
Notused 7
Notused 8