Delta Tau PMAC2A-PC/104 - Manual (Page 57)

PMAC2A PC104 Hardware Reference Manual
Base Board Connector Pinouts 51
J3 JMACH1 (50-Pin Header)
(Continued)
Top View
Pin# Symbol Function Description Notes
40 DAC4/ Output Analog Output Negative 4 4,5
41 AENA3/ Output Amplifier -Enable 3
42 AENA4/ Output Amplifier -Enable 4
43 FAULT3/ Input Amplifier -Fault 3 6
44 FAULT4/ Input Amplifier -Fault 4 6
45 ADCIN_1 Input Analog Input 1 Option-12 required
46 ADCIN_2 Input Analog Input 2 Option-12 required
47 FLT_FLG_V Input Amplifier Fault pull-up V+
48 GND Input Analog Common
49 A+15V Input DACs +15V Supply
50 A-15V Input DACs -15V Supply
The J3 connector is used to connect PMAC to the first 4 channels (Channels 1, 2, 3, and 4) of servo amps
and encoders.
Note 1: In standalone applications, these lines can be used as +5V power supply inputs to power PMAC’s
digital circuitry.
Note 2: Referenced to digital common (GND). Maximum of ±12V permitted between this signal and its
complement.
Note 3: Leave this input floating if not used (i.e. digital single-ended encoders).
Note 4: ±10V, 10 mA max, referenced to common ground (GND).
Note 5: Leave floating if not used. Do not tie to GND.
Note 6: Functional polarity controlled by variable Ix25. Must be conducting to 0V (usually GND) to
produce a 0 in PMAC software. Automatic fault function can be disabled with Ix25.