User's Manual

Turbo PMAC2 PCI Hardware Reference Manual
8 Hardware Setup
Power Supply Connection
The standard PMAC2 PCI 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 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 is mounted in an electrically active PCI bus slot, it automatically
draws its 5V and +/-12V power from the bus.
• 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 (+12V) and 4 (-12V) are needed
only if the Option 12 A/D converters are ordered.
• JMACH connectors: Up to 2A at 5V may be brought in through each 100-pin JMACH connector
from an Acc-8 board or its equivalent, provided the cable is 500 mm (20 in) or less in length.
Machine Port Connections
The Turbo PMAC2 PCI 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 and 2
• J10 (JMACH2) Board Channels 3 and 4
• J11 (JMACH3) Board Channels 5 and 6 (Option 1 required)
• J12 (JMACH4) Board Channels 7 and 8 (Option 1 required)
Display Port
The J6 (JDISP) display port provides a 14-pin IDC header for connection to Delta Tau’s Acc-12 family of
displays. Flat cables are provided with each of the Acc-12 displays for direct connection between the
display and this port.
Multiplexer Port
The J2 (JTHW) multiplexer port provides eight TTL-compatible 5V CMOS inputs and eight TTL-
compatible 5V CMOS outputs on a 26-pin IDC header. These can be used directly as general-purpose
digital I/O, or with PMAC2’s special M-variable support (TWB, TWD, TWR, and TWS formats) they
can be used to support hundreds, or even thousands of multiplexed I/O points on accessory boards.
Delta Tau provides the following accessory boards that can be connected to the multiplexer port. Each
comes with a flat cable for direct connection to the port.
• Acc-8D Option 7 Resolver-to-Digital Converter Board
• Acc-18 Thumbwheel Board
• Acc-34 family of Digital I/O boards
• Acc-35A and B Extender Board
I/O Port
The J3 (JIO) I/O port provides 32 TTL-compatible 5V CMOS I/O points on a 40-pin IDC header.
Direction is selectable by byte. These are intended for use as general-purpose digital I/O points.