Troubleshooting Instructions
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Troubleshooting Instructions for PS50E LiteGait Power System Prepare the LiteGait for troubleshooting Make sure the LiteGait is Unplugged from Power Outlet and turned on. To turn on LiteGait please make sure the red Emergency Stop button is not depressed by twisting the button clockwise.
Does the control box recognize the battery? 1) If the battery has a charge and is connected to the control box properly, then the capacity indicator will show solid black bars indicating a charge.
Turn On
25% Charged
100% Charged
No CHARGE
2) If the battery does not show solid black bars it could mean that the battery is low and requires charging. Plug the LiteGait into the power outlet. When connected to the outlet, the control box should have two illuminated LED’s (“ON” and “CHARGE”). If you do not see the “CHARGE” LED this means that the battery is either not connected to the control box OR that the battery charge is too low to take a charge. IF YOU DO NOT SEE THE CHARGE INDICATOR WHEN UNPLUGGED OR YELLOW CHARGE LED WHEN PLUGGED IN, THEN THE BATTERY IS EITHER DISCONNECTED FROM CONTROL BOX OR REQUIRES REPLACEMENT.
Does the battery hold charge under load? 3) If the battery capacity indicator shows 100% after charging the battery. Then when you attempt to raise or lower the actuator, the voltage immediately drops down to 50%, 25% or 0%. THIS INDICATES THAT THE BATTERY IS UNABLE TO SUSTAIN THE VOLTAGE NECESSARY TO MOVE THE ACTUATOR. THE VOLTAGE IS DROPPING OUT UNDER LOAD AND THE BATTERY THEN WOULD NEED TO BE REPLACED.
100% Charged
25% Charged
No CHARGE
Do all 4 Buttons on Hand Switch Communicate with Control Box? 4) Each button on the handwitch switches a corresponding relay within the control box. If you press a button on the hand switch you should be able to hear or feel (if you are touching the control box) a relay switch. If all four buttons switch properly, then it is very likely that the control box and hand switch are working properly and then you issue is either a connection issue, battery issue or possibly an actuator cord issue. If you do not feel clicking for 1 of the buttons on the hand switch, this means that either the hand switch connection is bad, the control box is bad or the hand switch is bad. The hand switch can be tested using an ohm meter performing the test listed below. If the hand switch is functioning properly, then the issue is with the control box and the control box will need to be replaced. 5) Hand Switch Functionality Test with Ohm Meter
2 of 4 buttons work properly on the LiteGait 6) The actuator on your unit is dual stage actuator that is controled by two independent channels on the LiteGait power system. The top two buttons on the handwitch control the middle section of the actuator while the bottom two buttons control the top most section of the actuator. Sometimes if the connections of the actuator cord are loose either in the control box OR the back of the actuator, this will effect the performance of the device.
Check Actuator Cord for Output 7) Using a volt meter the output of the actuator cord can be tested by inserting the probes into the plug that is insterted into the actuator. When the hand switch up or down buttons are pressed for Channel 1, the actuator cord should output a positive or negative 24V. Channel 2 should output the same voltage but using the other ports on the actuator cord.
Channel 1
Channel 2
Intermittently the actuator works properly 8) If the battery, hand switch, control box, and actuator cord all independently are working properly according to the previous checks. Then the issue could be the result of the combination of the control box and battery. If the battery has a high voltage on the battery and low impedance of the motor causes an initial current spike which is high enough to trigger current protection on the control box circuit, cutting off power to the actuator immediately. A test for this would be to drain the battery down by cycling the section of the actuator that is working proplery. After draining the battery down, if the second channel starts to work again, the cause was strictly that the battery voltage was too high. This will happen occasionally with new batteries, but goes away after the battery is has been used.
If you are unable to diagnose your issue after completing these steps, please feel free to contact technical support for further assistance. Technical Support can be reached via email at [email protected].