Start-Up
SINUMERIK 801 2-21
Start-Up
Drives with analog interface
Signals:
A voltage and an enable signal are output.
z AO4 (SETPOINT)
Analog voltage signal in the range ± 10 V to output a speed setpoint
z AGND4 (REFERENCE SIGNAL)
Reference potential (analog ground) for the setpoint signal, internally
connected to logic ground.
z SE4 (SERVO ENABLE)
Relay contact pair controlling the enable of the power section.
Signal parameters
The setpoint is output as an analog differential signal.
Table 2–9 Electrical parameters of the signal outputs for step-switching drives
Parameter Min Max Unit
Voltage range –10.5 10.5 V
Output current –3 3 mA
Relay contact
Table 2–10 Electrical parameters of the relay contacts
Parameter Max. Unit
Switching voltage 50 V
Switching current 1 A
Switching power 30 VA
Cable length: max. 35 m
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