Siemens SINAMICS G120P CU230P-2, Compact Operating Instructions

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Commissioning
4.3 Connecting the inverter to the fieldbus
CU230P-2 Control Units
40
Compact Operating Instructions, 01/2016, A5E37058917B AA
4.3.1 PROFINET and PROFIBUS
Examples for telegrams via PROFIBUS and PROFINET
Telegram 1: STW1 Control word 1
ZSW1 Status word 1
PZD01/02 Process data 16-bit
NSOLL_A Speed setpoint
NIST_A
Speed actual value
Telegram 20:
STW1 Control word 1 IAIST_GLATT Smoothed current actual value
ZSW1 Status word 1 MIST_GLATT Smoothed torque
PZD01/02 Process data 16-bit PIST_GLATT Smoothed active power
NSOLL_A Speed setpoint MELD_NAMUR Control word according to the
VIK-NAMUR definition
NIST_A_GLATT Smoothed actual
speed value
Control word 1 (STW1), PZD receive word 1 (word: r2050[0], bits: r2090.00 … r2090.15)
Bit Meaning Explanation
0 0 = OFF1 The motor brakes with the ramp-down time p1121 of the ramp-function generator.
The inverter switches off the motor at standstill.
0 → 1 = ON The inverter goes into the "ready" state. If, in addition bit 3 = 1, then the inverter
switches on the motor.
1 0 = OFF2 Switch off the motor immediately, the motor then coasts down to a standstill.
1 = No OFF2 Precondition in order to be able to switch on the motor using bit 0 (ON command).
2 0 = Quick stop (OFF3) The motor brakes with the OFF3 ramp-down time p1135 down to standstill.
1 = No quick stop (OFF3) Precondition in order to be able to switch on the motor using bit 0 (ON command).
3 0 = Inhibit operation Switch off the motor immediately → motor coasts down to a standstill.
1 = Enable operation Precondition in order to be able to switch on the motor using bit 0 (ON command).
4 0 = Disable RFG The inverter immediately sets its ramp-function generator output to 0.
1 = Do not disable RFG The ramp-function generator can be enabled.
5 0 = Stop RFG The output of the ramp-function generator stops at the actual value.
1 = Enable RFG The output of the ramp-function generator follows the setpoint.