SERIES IP320 INDUSTRIAL I/O PACK 12-BIT HIGH DENSITY ANALOG INPUT BOARD
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Hardware jumpers J1 and J2 control the range selection for the
ADC (-5 to +5, -10 to +10, or 0 to +10 Volts) as detailed in Section
2. Jumper selection should be made prior to powering the unit.
Thus, all channels will use the same ADC range. However, the
analog input range can vary on an individual channel basis
depending on the programmable gain selection.
The logic interface provides
±
12 Volt supplies to the analog
circuitry. The -10 to +10 and 0 to +10 Volt ADC ranges will be
clipped if these supplies are used, typically to
±
9 Volt maximum
inputs. The user has the option of providing
±
15 Volt external
supplies to fully utilize input ranges to
±
10 Volts. These supplies are
selected via hardware jumpers J3 and J4 as detailed in Section 2.
Note that jumper selection should be made prior to powering the
unit. Further, internal and external supplies should not be mixed
(e.g. do not use +12 Volts with -15 Volts).
The board contains four precision voltage references and a
ground (autozero) reference for use in calibration. These provide
considerable flexibility in obtaining accurate calibration for any
desired ADC range and gain combination, when compared to fixed
hardware potentiometers for offset and gain calibration of the ADC
and PGA. The calibration signals are selected (multiplexed into the
PGA) like any other input channel.
LOGIC/POWER INTERFACE
The logic interface to the carrier board is made through
connector P1. Not all of the IP logic P1 pin functions are used (refer
to Table 2.6). P1 also pr5V and
±
12V to power the module.
A programmable logic device installed on the IP Module
provides the control signals required to operate the board. It
decodes the selected addresses in the I/O and ID spaces and
produces the chip selects, control signals, and timing required by
the ADC, control register, and ID PROM, as well as, the
acknowledgement signal required by the carrier board per the IP
specification. The control logic also provides the trigger to start an
ADC conversion. This may be initiated by software commands or by
a user-generated external trigger input from connector P2 (see
Sections 2 and 3 for details).
The ID PROM (read only) installed on the IP module provides
the identification for the individual module per the IP specification.
The programmable control register is read/write and has been
described with the analog input circuitry. The ID PROM, control
register, and ADC data are all accessed through the 16-bit data bus
interface to the carrier board.
5.0 SERVICE AND REPAIR
SERVICE AND REPAIR ASSISTANCE
Surface-Mounted Technology (SMT) boards are generally
difficult to repair. It is highly recommended that a non-functioning
board be returned to Acromag for repair. The board can be
damaged unless special SMT repair and service tools are used.
Further, Acromag has automated test equipment that thoroughly
checks the performance of each board. When a board is first
produced and when any repair is made, it is tested, placed in a burn-
in room at elevated temperature, and retested before shipment.
Please refer to Acromag's Service Policy Bulletin or contact
Acromag for complete details on how to obtain parts and repair.
PRELIMINARY SERVICE PROCEDURE
Before beginning repair, be sure that all of the procedures in
Section 2, Preparation For Use, have been followed. Also, refer to
the documentation of your carrier board to verify that it is correctly
configured. Replacement of the module with one that is known to
work correctly is a good technique to isolate a faulty module.
CAUTION: POWER MUST BE TURNED OFF BEFORE
REMOVING OR INSERTING BOARDS
Acromag’s Applications Engineers can provide further technical
assistance if required. When needed, complete repair services are
also available from Acromag.
6.0 SPECIFICATIONS
GENERAL SPECIFICATIONS
Operating Temperature................0 to +70
°
C
………….-40 to +85
o
C (E Version)
Relative Humidity..........................5-95% non-condensing
Storage Temperature...................-40 to +100
°
C
……………-55 to +105
o
C (E Version)
Physical Configuration................Single Industrial I/O Pack Module
Length...................................3.900 in. (99.0 mm)
Width.....................................1.800 in. (45.7 mm)
Board Thickness...................0.062 in. (1.59 mm)
Max Component Height.........0.314 in. (7.97 mm)
Connectors:
P1 (IP Logic Interface)... ......50-pin female receptacle header
(AMP 173279-3 or equivalent).
P2 (Field I/O)........................50-pin female receptacle header
(AMP 173279-3 or equivalent).
Power:
+5 Volts (
±
5%)........................270mA Typical,
350mA Maximum
+12 Volts (
±
5%) from P1 or....12mA Typical, 20mA Maximum
+15 Volts (
±
5%) from P2.........(See Note 1)
-12 Volts (
±
5%) from P1 or.....8mA Typical, 20mA Maximum.
-15 Volts (
±
5%) from P2..........(See Note 1)
Non-Isolated..................................Logic and field commons have
a direct electrical connection.
Note:
1. The
±
12 volt power supplies are normally supplied through P1
(logic interface connector). Optionally (jumper selectable on the
IP), the user may connect external
±
15 volt supplies through the
field I/O interface connector, P2.
ANALOG INPUTS
Input Channels (Field Access).....40 Single-ended or 20
Differential Ended.
Input Signal Type.........................Voltage (Non-isolated).
Input Ranges (jumper selectable):
Bipolar -5 to +5 Volts.............(See Note 2).
Bipolar -10 to +10 Volts.........(See Notes 2 & 3).
Unipolar 0 to +10 Volts..........(See Notes 2 & 3).
Programmable Gains....................x1, x2, x4, x8.
