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La Marche Manufacturing Company | www.lamarchemfg.com
Option 22D
Digital Meter Package (for Option 22P/22S)
This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com
106 Bradrock Dr. Des Plaines, IL 60018-1967
Tel: 847-299-1188
Fax: 847-299-3061
Operation Manual
CPN 108859
i
Instruction Drawing Number: P25-LOPT22D-1
Revision A01
Rev. Date: 01/21
ECN: 22782
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Table of Contents
Summary of Contents for La Marche Option 22D
- Page 1 La Marche Manufacturing Company | www.lamarchemfg.com Option 22D Digital Meter Package (for Option 22P/22S) Operation Manual This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com 106 Bradrock Dr. Des Plaines, IL 60018-1967...
- Page 2 Option 22D – Operation General Description The 22D option revolves around the electronic static switch; an automatic device which will transfer, in a rapid 1 millisecond, an AC load its primary source to its alternate source in the event of a primary source failure.
- Page 3 The Test Transfer push button allows for transferring the load to the alternate source, if available, to assure static switch functionality. Alarm/Status Description AUTO/MANUAL RETRANSFER LED will be on solid when the inverter is set to automatically transfer back to preferred source when available. The LED will be blinking when the inverter is set to be manually transferred (by the user) back to the preferred source.
- Page 4 Default Value Delay Parameter (secs.) Lead Acid Nickel Cadmium Re-Transfer Mode Automatic Preferred Source Inverter Load Window High +20% Load Window Low -20% Utility Voltage High +10% Utility Voltage Low -10% Inverter Voltage High +10% Inverter Voltage Low -10% Low DC Voltage 1.98 V/C 1.20 V/C Low DC Voltage Reset...
- Page 5 Figure 3 – A31 Settings Menu Structure The Settings Menu is as follows: 3.1.1 Retransfer Mode This setting is used for selecting the mode for re-transferring the load. The Automatic setting would cause the load to transfer to the preferred source whenever available. The Manual setting would cause the load to maintain on the present source if both sources are available.
- Page 6 Re-Transfer Delay This setting is used to set the time the inverter will attempt to retransfer from the Alternate Source back to the Primary Source. The inverter must be in Auto Re-Transfer Mode for this setting to have any effect. The Re-transfer Delay may be adjusted from 0 to 20 seconds in 1-second increments, with 20 being the default.
- Page 7 3.1.6 Phase Window This setting allows the user to adjust the maximum allowable amount of degrees the two sources may have in difference in order for the sources to be considered out of phase. If the difference is greater, the Phase Lock LED will turn off.
- Page 8 Document Control and Revision History Part Number: 108859 Instruction Number: P25-LOPT22D-1 Issue ECN: 16282 – 12/03 22782 – 01/21 16282 – 12/03...
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