EPC
SERVO AMPLIFIER MODULE
Part Number L723888-3xx
ELECTRONIC
Telephone: (231) 929-1660
Oilgear
Fax:
(231) 929-7879
1424 International Dr
Issued May 31, 2018
Web Site:
www.oilgear.com
Traverse City, MI USA 4 9 6 8 6
Bulletin 836260F
3
4.3.3 Configuration Example .......................................................................................................... 34
4.4 Analog IO Configuration ................................................................................................................. 35
4.4.1 General Purpose Analog Input Configuration ........................................................................ 35
4.4.2 LVDT Fine-Adjustable Analog Input Configuration .............................................................. 38
4.4.3 Programmable Analog Outputs ............................................................................................. 39
4.4.4 Servo Valve Driver with Stroke Feedback ............................................................................ 40
4.4.4.1 Servo Attenuation and Offset ...................................................................................... 40
4.4.4.2 Stroke Feedback Device .............................................................................................. 41
4.4.4.3 Adjustment Mode ......................................................................................................... 41
4.4.5 LVDT Adjustment Algorithm ................................................................................................ 43
4.4.5.1. Determining LVDT Configuration Range ................................................................... 43
4.4.5.2 Adjustment Algorithm .................................................................................................. 44
4.5 Advanced Configuration .................................................................................................................. 46
4.5.1 Horsepower Limit Factor Calculation .................................................................................... 46
4.5.1.1 Experimental HP Limit Factor ..................................................................................... 47
4.5.1.2 Theoretical HP Limit Factor ........................................................................................ 48
4.5.2 Ramp Configuration ............................................................................................................... 50
5 Module Diagnostics ............................................................................................................................. 5 3
5.1 Diagnostic Representation of Numbers .......................................................................................... 53
5.1.1 DAC Counts .......................................................................................................................... 53
5.1.2 Voltage and Percentages ....................................................................................................... 53
5.2 Basic Diagnostics on Front Panel ................................................................................................... 53
5.2.1 Run / Fault LED .................................................................................................................... 54
5.2.2 Valve Current LED ................................................................................................................ 54
5.2.3 Feedback LED ...................................................................................................................... 54
5.2.4 Testpoint ................................................................................................................................. 54
5.3 Basic Diagnostics with PC Interface .............................................................................................. 55
5.4 Programmable Outputs Diagnostic ................................................................................................. 56
5.5 Advanced Diagnostics ..................................................................................................................... 56
5.5.1 Module Faults ........................................................................................................................ 56
5.5.2 System Messages .................................................................................................................. 57
6 Technical Data ....................................................................................................................................... 5 8
6.1 Module Pinout ................................................................................................................................. 58
6.3 Specifications .................................................................................................................................. 59
6.4 IO Summary .................................................................................................................................... 59
6.5 Cable Recommendations and Terminal Information ....................................................................... 59
7 Technical Support ................................................................................................................................. 6 0
8 Ordering Information ........................................................................................................................... 6 1
