Use the following AT command set to adjust parameters. The serial port must be connected using a null modem
cable. No special software is required. Using your preferred serial port communication software such as Hyper
Terminal, Commfront, or Hercules set your COM port to 19200 BAUD, 8 DATA, NO PARITY, 1 STOP.
Header must dene GET(?) or SET(=).
EXAMPLE:
ATES? - Returns engine start delay
ATES=5 - Sets engine start delay to 5 seconds.
SETTINGS:
ATES - Engine Start Delay 1-10 seconds
ATED - Exercise Cycle Delay 168-672 hours
ATET - Exercise Period 1-3000 seconds
ATLC - Load Control Delay 1-1200 seconds
ATTR - Transfer Delay 1-10 seconds
ATRT - Retransfer Delay 60-1800 seconds
ATCD - Cool Down Period 1-600 seconds
ATEF - Emergency Power Fail Delay 60-100 seconds
ATFO - Frequency dropout percentage 50-99%
ATFI - Frequency pullin percentage 50-99%
ATDO - Dropout Voltage percentage 50-99%
ATPI - Pullin Voltage percentage 50-99%
ATAC - Apply Changes Re-read all saved settings
ATFD - Factory Defaults Set all settings to factory defaults
ATHW - Hardware results Read all parameters (voltage, mode, frequency, etc.)
ATSW - Software settings Read all current settings
List of AT commands to adjust settings on the 72-GM35950-00
WARRANTY POLICY This Flight Systems manufactured replacement generator/ATS control is warranted to be
free from defects in materials and workmanship for a period of two years from the date it was sold. (This date appears
on unit label)
Flight Systems’ Limited Warranty covers the repair or replacement of defective product within the warranty period. It
does not cover the cost of installation, or removal costs incurred, or possible damage to other equipment (including the
generator or parts thereof) as a result of this product.
Flight Systems (or its authorized agent) shall reserve the right to determine the cause of malfunction. In the case if we
determine that it was due to abuse, misuse, improper installation, acts of nature (such as storms), failure to perform
recommended gen set maintenance procedure or problems elsewhere in the gen set, the warranty claim shall be disal-
lowed and established repair rates shall apply. Ship defective units directly to:
Flight Systems, 207 Hempt Rd. Mechanicsburg, PA 17050 - Attention: Warranty Repair
Please prepay all freight charges and note the nature of the failure, if known.
Return Policy: Unwanted items may only be returned within 30 days of original purchase date. Refund/credit issued
shall be less a 25% per item restocking/re-test fee as long as unit is in new, undamaged condition.
Shipping charges are
not refundable.
REBUILDING SERVICE If this product suffers a failure when out of warranty, it can be rebuilt. As with all
Generator Controls Rebuilt by Flight Systems, a One-Year Warranty will be issued. Please contact us for current rebuild
pricing. Ship units to:
Flight Systems, 207 Hempt Rd. Mechanicsburg, PA 17050 - Attn. Repair Dept.
Please prepay all freight charges and note the nature of the failure, if known.
DEFAULT SETTINGS:
3 seconds
168 hours (1 week)
1200 seconds (20 min)
300 seconds (5 min)
3 seconds
360 seconds (6 min)
300 seconds (5 min)
78 seconds
90%
96%
80%
85%