User's Manual

PMAC2 PCI Hardware Reference Manual
Base Board Connector Pinouts 27
J9 JMACH1 Connector
(Continued)
Front View
Pin# Symbol Function Description Notes
94 PWMCTOP2-
DIR2-
Output Phase B top Cmd. or PFM
direction
Programmable function control
95 PWMCBOT2+
PULSE2+
Output Phase B bottom Cmd. or PFM
pulse
Programmable function control
96 PWMCBOT2-
PULSE2-
Output Phase B bottom Cmd. or PFM
pulse
Programmable function control
97 GND Common Reference voltage
98 GND Common Reference voltage
99 +5V Output / Input +5V power For external circuit or from external
supply
100 +5V Output / Input +5V power For external circuit or from external
supply
The JMACH1 connector provides the interface pins for channels 1 and 2. Usually, it is connected to a breakout
board, such as one of the Acc-8x family of boards, or an application-specific interface board.
J10 (JMACH2) Connector Description
J10 JMACH2 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 CHA3+ Input Encoder 3 positive A channel Also pulse input
6 CHA3- Input Encoder 3 negative A channel Also pulse input
7 CHB3+ Input Encoder 3 positive B channel Also direction input
8 CHB3- Input Encoder 3 negative B channel Also direction input
9 CHC3+ Input Encoder 3 positive C channel Index channel
10 CHC3- Input Encoder 3 negative C channel Index channel
11 CHU3 Input Channel 3 U flag Hall effect, fault code, or sub-count
12 CHV3 Input Channel 3 V flag Hall effect, fault code, or sub-count
13 CHW3 Input Channel 3 W flag Hall effect, fault code, or sub-count
14 CHT3 Input Channel 3 T flag Fault code, or sub-count
15 USER3 Input General purpose user flag Hardware capture flag, or sub-count
16 PLIM3 Input Positive overtravel limit Hardware capture flag
17 MLIM3 Input Negative overtravel limit Hardware capture flag
18 HOME3 Input Home switch input Hardware capture flag
19 ACCFLT3 Input Accessory fault flag For loss of acc supply voltage
20 WD0/ Output Watchdog output Low is PMAC watchdog fault
21 SCLK34+ Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
22 SCLK34- Input / Output Encoder sample clock Direction controlled by PMAC2
jumper
23 ADC_CLK3+ Output A/D converter clock Programmable frequency