User's Manual

PMAC2 PCI Lite Hardware Reference Manual – Preliminary Documentation
26 Base Board Connector Pinouts
J8 (JEQU) Position Compare Output Connector
Pin # Symbol Function Description Notes
1 EQU1/ Output Encoder 1 comp-Eq Programmed polarity
2 EQU2/ Output Encoder 2 comp-Eq Programmed polarity
3 EQU3/ Output Encoder 3 comp-Eq Programmed polarity
4 EQU4/ Output Encoder 4 comp-Eq Programmed polarity
5 EQU5/ Output Encoder 5 comp-Eq Programmed polarity
6 EQU6/ Output Encoder 6 comp-Eq Programmed polarity
7 EQU7/ Output Encoder 7 comp-Eq Programmed polarity
8 EQU8/ Output Encoder 8 comp-Eq Programmed polarity
9 +V Supply Positive supply +5V
10 GND Common Digital ground
This connector provides the position-compare outputs for the eight encoder channels.
J9 (JMACH1) Connector Description
J9 JMACH1 Connector
Front View
Pin# Symbol Function Description Notes
1 +5V Output / Input +5V power For external circuit or from
external supply
2 +5V Output / Input +5V power For external circuit or from
external supply
3 GND Common Reference voltage
4 GND Common Reference voltage
5 CHA1+ Input Encoder 1 positive A channel Also pulse input
6 CHA1- Input Encoder 1 negative A channel Also pulse input
7 CHB1+ Input Encoder 1 positive B channel Also direction input
8 CHB1- Input Encoder 1 negative B channel Also direction input
9 CHC1+ Input Encoder 1 positive C channel Index channel
10 CHC1- Input Encoder 1 negative C channel Index channel
11 CHU1 Input Channel 1 U flag Hall effect, fault code, or sub-
count
12 CHV1 Input Channel 1 V flag Hall effect, fault code, or sub-
count
13 CHW1 Input Channel 1 W flag Hall effect, fault code, or sub-
count
14 CHT1 Input Channel 1 T flag Fault code, or sub-count
15 USER1 Input General purpose user flag Hardware capture flag, or sub-
count
16 PLIM1 Input Positive overtravel limit Hardware capture flag
17 MLIM1 Input Negative overtravel limit Hardware capture flag
18 HOME1 Input Home switch input Hardware capture flag
19 ACCFLT1 Input Accessory fault flag For loss of ACC supply voltage
20 WD0/ Output Watchdog output Low is PMAC watchdog fault
21 SCLK12+ Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
22 SCLK12- Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
23 ADC_CLK1+ Output A/D converter clock Programmable frequency