Rockwell-automation 57C422B 2 Axis Servo Module Manual do Utilizador descarregar pdf (Página 14)

2-4

2-Axis Servo Module M/N 57C422B

Each axis contains two registration inputs which are

connected to faceplate LEDs. One input is used with the

feedback encoder; the other is used with the gearing

reference. These registration inputs are typically used to

strobe the feedback and/or the reference position into a

group of registers for use by application software which can

synchronize the axis to an external event. The input may be

15-24 VDC only and there is a transport delay of

approximately 25 microseconds from the time that a

registration input is asserted until the isolated signal changes

state. Refer to figure 2.3 for a typical input circuit. In critical

applications, hard-wire your overtravel L/S into the

emergency stop circuit so that the drive will be disabled

regardless of the state of the control.

Figure 2.2 – Encoder Input Circuit

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Rockwell-automation 57C422B 2 Axis Servo Module Manual do Utilizador Página 14