ABB RTAC-01 Operation & User’s Manual

v Table of contents Safety instructions Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii General safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Table of contents Chapter 1 – Introduction Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 What this manual contains . . . . . . ...

RTAC-01 User’s manual 3-3 Power consumption Without an external power supply, the RTAC-01 can supply 5 W (at either 15 V or 24 V DC) to the encoder. For higher power, an external power supply is required. As the power consumption of the module depends on many factors (e.g. max. speed of the motor, encoder pulse number per revolution, encoder cable length and leakage capacitance), it should be checked on each occasion if an external power supply is needed. See the encoder documentation for details. Figure 3-2 shows the approximate power consumption of an encoder wit ...

3-8 RTAC-01 User’s manual Wiring diagrams Encoder output type: Push-pull Output pulse order in Forward rotation: 1, 2 (With encoders with 2 as the leading output, 1 and 2 should be wired to RTAC terminals B+ and A+ respectively. 1 and 2 should be wired to RTAC terminals B- and A- respectively.) Differential connection Figure 3-3 Differential wiring of pulse encoders with push-pull outputs 1 2 1 1 0 0V VCC 2 X1 RTAC A+ A- B+ B- Z+ Z- 2 0 15V 24V Encoder supply voltage selection (15 or 24 V) 1 2 3 4 5 6 SHLD SHLD 7 8 V OUT +15V V IN +24V 1 2 3 4 5 6 0 V 0 V X2 ...

RTAC-01 User’s manual 3-7 Encoder output types The diagram presents some typical encoder output types. The following pages include wiring diagrams for each output type. Push-pull Open collector (Sinking) Open emitter (Sourcing) VCC = Encoder input power supply voltage RL = Load resistor at encoder output channel RL2 VCC RL1 VCC OUT RL VCC OUT VCC RL VCC OUT ...