User's Manual

PMAC2 PCI Lite Hardware Reference Manual – Preliminary Documentation
8 Hardware Setup
The following table lists the pull-up/pull-down resistor pack for each input device:
Device Resistor Pack Device Resistor Pack
Encoder 1 RP43 ADC/Fault1&2 RP58
Encoder 2 RP48 ADC/Fault3&4 RP59
Encoder 3 RP44 ADC/Fault5&6 RP119
Encoder 4 RP49 ADC/Fault7&8 RP120
Encoder 5 RP104 SCLK12&34 RP62
Encoder 6 RP109 SCLK56&78 RP123
Encoder 7 RP105
Encoder 8 RP110
Connections
Mounting
The PMAC2 PCI Lite can be mounted in one of two ways: in the PCI bus, or using standoffs.
1. PCI bus: To mount in the PCI bus, simply insert the P1 card-edge connector into the PCI socket. If
there is a standard PC-style housing, a bracket at the end of the PMAC2 PCI Lite board can be used to
screw into the housing to hold the board down firmly.
2. Standoffs: At each of the Four Corners of the PMAC2 PCI Lite board, there are mounting holes that
can be used to mount the board on standoffs.
Power Supply Connection
The standard PMAC2 PCI Lite requires only 5V power: 3A in a 4-channel configuration, 4A in an 8-
channel configuration (with Option 1). If the Option 12 A/D converters are installed, a –12V supply is
also required. In this case, a +12V supply also can be passed through the card and out to the analog
devices feeding the A/D converters.
The power can be provided in several ways:
• Bus connector: If the PMAC2 PCI Lite is mounted in an electrically active PCI bus slot, it draws its
5V and +/-12V power from the bus automatically.
• Terminal block: The TB1 2/4-point terminal block can be used to bring in 5V power, especially in
standalone applications. Point 1 is GND; Point 2 is +5V. Points 3 and 4 are needed only if the
Option-12 A/D converters are ordered.
• JMACH connectors: Up to 2A may be brought in through each 100-pin JMACH connector from an
Acc-8 board or its equivalent, provided the cable is 500mm (20 inches) or less in length.
Machine Port Connections
The PMAC2 PCI Lite has a 100-pin high-density header for each pair of servo interface channels.
Through this connector, pass all of the digital signals to and from the amplifier, encoder, and flags for the
two channels. Typically, this header is connected with a matching Delta Tau Acc-8 family 2-channel
breakout board or equivalent through a provided 100-pin flat cable.
The machine port connectors are:
• J9 (JMACH1) Board Channels 1 & 2
• J10 (JMACH2) Board Channels 3 & 4
Display Port
The J6 (JDISP) display port provides a 14-pin IDC header for connection to the Acc-12 family of
displays. Flat cables are provided with each of these displays for direct connection between the display
and this port.