Ransburg DynaFlow User Manual - Manual (Page 93)

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DynaFlow TM User Manual - Appendix
APPENDIX
ADDENDUM A:
Obsolescence of the 77206-01 8-bit Channel Card, the 77206-12
10-bit Channel Card and the A10946-00 12-bit Channel Card.
In 2004, the 77206-01 DynaFlow 8-bit Channel Card was replaced by the 77206-12 10-bit Channel
Card to improve the resolution of the analog outputs on this card. Then in 2006, the 77206-12 10-bit
Channel Card was replaced by a totally redesigned 12-bit Channel Card and it was assigned a part
number of A10946-00. Lastly, in 2007, the A10946-00 board was obsoleted and replaced by 2 boards,
the A10946-01 and the A10946-02. The reasons for this final change are explained below: (This
information is also contained in Service Note AF-111307.)
The IC chip used on the A10946-00 DynaFlow Channel Card that produces the 4-20 mA output for
flow rate and pressure control is becoming extremely expensive and is currently experiencing very
long lead times. We have decided to produce two versions of the DynaFlow Channel Card. One
version will be built as the boards are now. The other version will not have the 4-20 mA converter IC
on the board, which will effectively eliminate the capability of the board to output 4-20 mA signals for
these two outputs. (Our sales history shows very few users make use of these two output signals.)
The 0-10 VDC outputs for these two signals will still function normally.
In order to ensure that the proper boards are selected, the following changes have been made to
the part numbers: The A10946-00 part number has been obsoleted. The A10946-01 board is the
new board without the 4-20 mA IC’s and is the board that will be used in all future builds unless the
customer specifically requests 4-20 mA outputs for these two signals. The A10946-01 board can
be modified by our manufacturing facility to become an A10946-02, when necessary, if this option is
required. (Because of the high cost and limited availability of these IC’s, there will be an additional
cost for this option.)
If you currently use the obsoleted A10946-00 boards, our technical support personnel will need to know
if you are using the 4-20 mA option for either the flow rate output or the pressure control output to be
able to determine which of the two new boards to send. This can be done by examining the jumpers on
the boards you are now using. If jumpers any of the following jumpers: JMP5, JMP6, JMP7, or JMP8
are connected between pins 1 to 2, this most likely indicates that you are using the 4-20 mA option
and will require the A10946-02 board. (Unless that channel or output signal is not being used and the
jumpers were changed from the factory defaults for some reason.) In all other cases, the A10946-01
board should be used. (See picture on next page. Note that pin #1 is toward the top of the board.)
Since this is a totally redesigned board from that of the 77206 series boards, we have also included
jumper and dip switch setting information with this addendum. The dip switch settings for SW1 have
not changed. Refer to "Hardware Settings" in current DynaFlow User Manual for these settings.