Delta Tau PMAC Pack, Hardware Reference Manual

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PMAC-Pack
Overview 15
ACC-24EXP Expansion Pack
If more encoder inputs or DAC outputs are required, a 4-axis expansion pack, ACC24EXP, can be
mounted alongside PMAC-Pack to provide additional encoder inputs and DAC outputs. This allows one
PMAC-Pack to control up to 8 non-commutated axes or 4 commutated axes. The ACC24EXP Expansion
Pack, in addition to the additional DACs and encoder channels it provides, may be ordered with the
internal accessories shown in Table 1-3.
Note:
When PMAC is used to commutate Brushless or AC Induction motors, 2 DAC
channels per axis are required. Refer to the PMAC User's manual for further
details on PMAC motor commutation.
Table 1-3. Expansion Pack Options and Accessories
Option/Accessory Number Definition
ACC-8D OPT2EXP 4-Channel Voltage-to-Frequency Converter For use with stepper motors
ACC-8D OPT4EXP 40 W 4-Channel amplifier for hydraulic valves
ACC-8D OPT4AEXP 150 W 4-Channel amplifier for small DC brush motors
ACC-28 AEXP
4 Channel 16 bit A/D Converter card (
)
10V input)