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List of Drawings
IMPORTANT SAFETY CONSIDERATIONS
It is very important for the user to consider the possible adverse
effects of power, wiring, component, sensor, or software failures
in designing any type of control or monitoring system. This is
especially important where economic property loss or human life
is involved. It is important that the user employ satisfactory
overall system design. It is agreed between the Buyer and
Acromag, that this is the Buyer's responsibility.
Acromag, Inc.
30765 South Wixom Road
P.O. Box 437
Wixom, Michigan 48393-7037, USA
Copyright 1996, Acromag, Inc., Printed in the USA.
Data and specifications are subject to change without notice.
LON, Neuron, and LonTalk are U.S. registered trademarks of
Echelon Corporation. L
W
ON
ORKS
Corporation. Windows is a trademark of Microsoft Corporation.
9000-366/8500-526-C98A006
Model EP4994 Quad VDC Input DC-Powered L
Page
1
1
2
3
4
6
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8
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Tel: (248) 624-1541
FAX: (248) 624-9234
is a trademark of Echelon
User's Manual: SmartPack Series 550L

INTRODUCTION:

below. Supplementary sheets are attached for units with special
options or features.
Table 1:
A. Model Number Format :
550L1-Function-Input-Power-Certification
B. Typical Model Number: 550L1-504-4V2-10-NCR
Series/
-Function
550L1
-504
550L3
-504
Notes (Table 1):
1. Consult the factory for current information on agency (e.g.
Canadian Standards Association, etc.) approvals.
2. Unit can be ordered with or without factory calibration; if unit
is factory calibrated to a customer's specifications, the model
number suffix "-C" will indicate this. Any customer specified
calibration information will be included on a separate
calibration label on the unit.

DESCRIPTION:

The Series 550L is a member of the Acromag SmartPack
family. It converts four independent DC voltage inputs into
corresponding network variables. The nominal input range for
each input is fixed at -10V to +10VDC, or -100V to +100VDC.
Through network variables, virtually any part of the input range
can be scaled to output values in the range of -100% to +100%,
as defined by the SNVT_lev_percent network variable type. For
example, a 0 to 5 V input can be scaled to output 0 to 100%. Or
a -75 to +75 V input can be scaled to output -100 to +100%. For
each analog input, network variable updates may occur due to
changes in input level and/or at specified time intervals.
All SmartPack modules are designed for harsh industrial
environments. They feature RFI and EMI protection, a wide
operating temperature range, and isolation between power,
network and I/O. They are DC powered, DIN-rail mountable, and
available with either a twisted pair (TP/XF-78) or free topology
(TP/FT-10) transceiver. Up to 64 modules can be connected on
a single network segment. Multiple segments may be connected
using repeaters to increase the number of modules and distance.
- 1 -
W
™ Module
ON
ORKS
-Inputs
-Power
-Cert.
(1)
-4V2
-10
-NCR
-4V2
-10
-NCR
-Cal.
(2)
Blank
-C
Blank
-C

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Summary of Contents for Acromag SmartPack Series

  • Page 1: Table Of Contents

    It is important that the user employ satisfactory The Series 550L is a member of the Acromag SmartPack overall system design. It is agreed between the Buyer and family. It converts four independent DC voltage inputs into Acromag, that this is the Buyer's responsibility.
  • Page 2: Specifications

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ SmartPacks are interoperable with L products from INPUT: This unit has four independent analog inputs with ORKS other manufacturers that use standard network variable types software selectable output scaling ranges. Zero and Full- (SNVTs).
  • Page 3: Installation

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ RFI Resistance: Less than ± 0.5% of input span effect with RFI LED Indicators: Power LED (Green): Indicates power applied to unit. field strengths of up to 10V/meter at frequencies of 27MHz, Service LED (Red): LED blinks at a 1/2 Hz rate for an 151MHz, and 467 MHz.
  • Page 4: Network Variables

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ "G" Rail (32mm), Type EN50035: To attach a module to this NETWORK VARIABLES: style of DIN rail, angle the unit so that the upper groove of the adapter hooks under the top lip of the rail. Firmly push the To provide interoperability, standard network variable types unit towards the rail until it snaps solidly into place.
  • Page 5 Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ nvo_pvout[ x ]: Process Variable Output nci_callo[ x ]: Calibration Low Variable Declaration Declaration network output SNVT_lev_percent nvo_pvout[ 4 ]; eeprom network input SNVT_lev_percent nci_callo[ 4 ]; Description Description This output network variable contains the latest value of the This configuration input network variable contains the value corresponding analog input in units of SNVT_lev_percent.
  • Page 6: Calibration

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ maximum update rate regardless of the source of control is limited to 5 updates/second. Example 2. A -60V to +20V input is scaled to output -100 to 100%. This unackd – unacknowledged service; the update is sent once and results in the following constants (raw SNVT_lev_percent values no acknowledgment is expected.
  • Page 7: General Maintenance

    It is highly recommended that a non-functioning module be returned to Acromag for repair, since Acromag makes use of tested and burned-in parts, and in some cases, parts that have been selected for characteristics beyond that specified by the manufacturer.
  • Page 8: Electrical Connections: V/Ma Inputs (4501-506)

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ - 8 -...
  • Page 9: Calibration Connections (4501-508)

    Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ - 9 -...
  • Page 10 Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ - 10 -...
  • Page 11 Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ - 11 -...
  • Page 12 Series 550LX-504-4V2-10 SmartPack User's Manual Quad VDC Input __________________________________________________________________________________________ - 12 -...

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