Delta Tau 8F, Руководство пользователя

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ACC-8F & ACC-8FP Delta Tau Data Systems, Inc.
Introduction
2
The ACC-8F has a 6-point terminal block (TB3) that permits a +5V supply to be brought in
externally for encoders and the like. Alternatively, the +5V supply can come from the PMAC2
through the ACC-8F if the jumper E1 on ACC-8F is ON. If more than about 250 mA will be
used through the ACC-8F, the +5V power should be brought in through this terminal block, and
the E1 jumper should be OFF to keep this supply from fighting the +5V supply on PMAC2.
Options
Option 1: Encoder, Supplemental flags and Main flags use terminals (TB1, TB2, TB4, TB5)
Option 2: Encoder, Supplemental flags and Main flags use DB connectors (P1, P2, P3, P4)
Option 4: Rail mount
Option 6:
Mulitplexed encoder and power-on read option
ACC-8F Limit and Flag Wiring
The ACC-8F allows the user to use sinking or sourcing position limits and flags to the PMAC2.
The optoisolator IC used is a PS2705-4NEC-ND quad photo-transistor output type. This IC
allows the current to flow from return to flag (sinking) or from flag to return (sourcing).
ACC-8F Circuit
A sample of the positive limit circuit is shown below. The 4.7K resistor pack used will allow
12-24V flag inputs. If lower voltages are needed, then a lower value resistor could be used in its
place (470
Ω
for 5V). Please call the factory if this is the case for your application.
Connecting to the ACC-8F
The following diagrams illustrate the sinking and sourcing connections to an ACC-8F.