Design-Rite Inc., Data Logger Data Sheet






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Refuse Compactor
Control
Refuse Compactor Control



Physical Description

  Data logger physical dimensions are 8" Wide X 6" High. The card is mounted by means of four standoffs on 7" Wide X 5" High centers. Standoffs have clearance holes designed for mounting by (4) 6-32 machine screws (provided).

Connections To Equipment
  An 18 point pluggable terminal connector is mounted on the lower edge of the data logger. Connections to the card are as follows.

Terminal Number

Function

Default Signal Name

1 Power Supply Hot  
2 Power Supply Common  
3 Input #1 Hot Emergency Stop String
4 Input #1 Common  
5 Input #2 Hot Motor Starter Overload
6 Input #2 Common  
7 Input #3 Hot Motor Starter Coil
8 Input #3 Common  
9 Input #4 Hot Automatic
10 Input #4 Common  
11 Input #5 Hot Extend Solenoid
12 Input #5 Common  
13 Input #6 Hot Retract Solenoid
14 Input #6 Common  
15 Input #7 Hot Unit Part Full
16 Input #7 Common  
17 Input #8 Hot Unit Full
18 Input #8 Common  
N/A Ground Wire Ground

  In addition to the above, two terminals on the data logger are used for connection of the motor current sensor and a green ground wire is provided to meet future UL requirements.

Connections To Communications
  A round 3 pole switched 1/8" phono jack connector is provided for connection to a standard RS-232 serial port
AND
A modular telephone style connector is provided for connection to an incoming telephone line.
Note: Only One of the above ports can be used at a time
The communication speed is limited to 2400 baud to retain the ability to download programs to the field reliably .
Display (Option)
  A small two line by 16 character display can be connected to the data logger. It can be connected (temporarily or permanently) or disconnected during operation of the data logger. Events (changes of input status) are displayed on the screen when they occur.
Note:
Due to the limited screen size, multiple events may be overwritten before they can be recognized

Program Functionality - Discrete Events
 
The data logger contains a battery backed real time clock. Events are time stamped when they are logged. Each transition of an input point from off to on or from on to off is time stamped and logged to non-volatile memory for subsequent retrieval.
Note: In order to minimize communications burden, extra attention is given to insuring that data is as compact as is practical
.

Program Functionality - Analog Data
  While the conditions are customizable, it is expected that motor current analog data is logged when the compactor is in automatic and the ram is extending. Motor currents are captured at pre defined intervals, typically 100 milliseconds and logged to volatile memory. Depending on the length of a compactor cycle, the most recent one to three complete cycles is retained.
Note:  In order to minimize communications burden, extra attention is given to insuring that data is as compact as is practical.

Program Functionality - Miscellaneous
  Each data logger has a unique serial number stored in non-volatile memory which is readable when data is acquired. The correct time and date may be set in the real time clock via the phone line. The Logging Interval can be configured.



Ratings:
Nominal Incoming AC Power
    115 VAC +10% -15% 60 Hz.
    1/4 Ampere
    Fuse 1/2 ampere

Digital Input Point
    115 VAC +10% -15% 60 Hz.
    0.01 Ampere

Analog Current Range
    Max Current 75 Amperes
    Minimum Current 5 Amperes
    Note: For lower current use multiple turns in CT.

Temperature
    Maximum Temperature 60 Degrees C (145 F)
    Minimum Temperature 0 Degrees C (32 F)

Vibration
Shock
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