Frequently Asked Questions
DC Product
General Question
1. How can I initiate an RMA? I need to send my unit for repair.
2. My unit is brand new, out of the box. It failed during start up. How can I get a replacement?
3. How can I check warranty status of my unit?
4. Parts are missing on my orders. How can I get the missing parts?
5. How do I track an order?
How to track order.
How to find order.
Cordex CXC Series Controllers
1. What does the Controller do in case of an invalid voltage reading?
2. What is the Communication Protocol between CXC and its peripherals?
3. If a Rectifier is in "Power Save" mode and it loses communication with the CXC, what will happen?
4. How often are the analog values in logs updated (for example, the "Current" information in the Statistics log)?
5. How many CAN devices can the controller communicate with?
6. On CXC series controllers, which one has internal battery?
7. How do I wire the Digital Input?

8. How many temperature probes can I use and connect to the CXC controller?
9. What is the default IP factory address for the CXC controller?
10. What is the Username and Password?
11. Making changes with some parameters, when I hit Submit Changes, nothing happens.
12. Log-in in to the controller using my laptop, the web does not show up some information.
13. What is a TC Sensor Fail Alarm? How can I clear it?
14. What is a Temp Sensor 1, 2 or 3 Fail?
15. What is Battery Runtime Low?
16. What is Battery Capacity Low?
17. What is a Battery OverTemp Alarm?
18. How can I trigger a Battery On Discharge Alarm?
19. How can trigger a System Minor Alarm?
20. How can I trigger a System Major Alarm?
21. I’m doing commissioning work and I want to simulate a Rectifier Minor and Major Alarm, how can I do it?
22. How can I check the alarm history in the controller?
23. If I have similar systems, how can I copy a configuration file from one system to the other?
24. How can I rename a Text Label?
25. Getting numerous traps even though there is no alarm on the controller, how can I fix it?
26. Just replaced a rectifier and still controller is showing a Comms Lost alarm, how to clear the alarm?
27. What is the part number of the lithium battery used in the controller?
28. How does the controller calculate capacity calibration?
The theoretical discharge curve is determined by:
1. Discharge rate.
2. Peukert number.
3. The rated capacity in Ah.
For new batteries, it is not unusual to get a value of greater than 100% over the first few discharges.
29. Why can’t I assign relays to multiple Alarms?
Cordex HP Controller
1. What is the Username and Password?
2. What is the default IP address for the Ethernet ports?
3. Where can I find Inventory Update?
4. Where is the Custom Signals?
Refer to the Software Manual and look for Using Custom Data.
5. Where can I configure load Current and battery Current Source?
6. A Bus State Alarm (CAN1 or 2) is present in the system. There is no device connected to the CAN.
7. Where can I change the setting so that the controller will be able to automatically assign (recognized) the rectifiers?
8. I just removed a rectifier from the shelf and controller is giving me a “Rectifier Comms Lost” Alarm. How can I clear it?
- Have to make the controller forget the module. Go to Modules then Rectifiers. On the module with Communications Lost alarm, click on then Forget.
- Also in the Modules > Unassigned Modules, there is an option for “Forget All in Comms Lost”.
9. How can I back-up the configuration in the controller?
10. Trying to add 2nd temp probe for battery temperature reading, the controller is not accepting it. How can I fix it?
11. I can’t find the peukert calculator, is this available in the controller?
12. What are the default alarm mapping in the controller?
13. What type of battery is in the Cordex HP controller?
14. How can I change the password?
a. Changing the Default Password - LCD
This section describes how to change user passwords from the LCD.
You must be logged in to the controller to change passwords.
- From the main Dashboard, click the Menu button.
- Press Controller to highlight it, and then press the arrow on the right-side.
- Press to highlight Configure Controller, and then press the arrow on the right-side.
- Swipe with an upward motion on the touch screen to scroll down to Users and Security, and press to highlight.
- Press the arrow on the right-side, and then select admin.
- Press Change User Password.
- Press the Execute button to modify the default, and then click the checkmark to save your changes.
b. Changing the Default Password - Web This section describes how to change the default password via the web interface.
- From the main dashboard, go to Controller > Configure Controller > Users and Security.
- From the admin line, click the more details icon on the right-side of the table.
- From the table, click the Change User Password button.
- Enter a new password and then click Save.
15. How can I disable a broken temperature probe from the controller?
16. I have a temperature probe connected to T1 on the L ADIO but it is not reading anything, just showing dashes. I tried moving this probe to T2 and still yielded the same result. How can I get it working?
17. Where can I find and download the most recent software and operating system for the controller?
18. I can’t find power save anywhere in the menus. Where can I find it?
19. The acquired rectifiers reflected under Power System > Status menu is less compared to number of rectifiers plugged-in. How can I check which one is not recognized by the controller?
20. The unit of measure for Temperature is in Celsius, how can I change it to Fahrenheit?
- From the main Dashboard, click the Menu button.
- Press Controller to highlight it, and then press the arrow on the right-side.
- Press to highlight Configure Controller, and then press the arrow on the right-side.
- Press User Interface Preferences then the arrow on the right-side.
- Press User Interface Preferences again then the arrow on the right-side.
- Press the Default Login Language then the arrow on the right-side.
- Select which one to use English or Metric than tap on the Check mark to save and back out.
On the upper right side of the web beside the My Account is the unit of measure. This can be changed between US English and US English Metric.
Converters
1. Getting Sub-Converter Alarm or Intermittent alarm on Cordex 24-48 Converter modules. The load current are not sharing evenly and jumping all over the place, how can I correct this?
2. Where is the power to the controller in a Converter shelf dual input coming from?
3. I’m getting unknown alarm on my converter modules, how can I clear the alarm?
- CXDF 48-24 2kW to v1.02
- CXDF 24-48 2kW to v1.04
RECTIFIERS
1. What is the load sharing tolerance between rectifiers?
2. What is a True Fail Alarm?
3. What are Minor Alarms?
4. What are Major Alarms?
5. For the Cordex 48-3.6KW and 4.0KW shelf, if I used a CXCM4 on the first slot, do I need to wire AC feed into it?
Breaker Distribution
1. In an Indoor Vista Cabinet, what are the main causes of getting a Distribution CB Alarm?
- A breaker is in the tripped position.
- Wrong breaker is used, must all be a Mid-Tripped type breaker.
- A conductive material; i.e. a piece of wire, is trapped at the back of the distribution alarm board causing a contact between the board pattern and the main hot bus.
- For more information, click on the link for a you tube video with detailed troubleshooting process. http://www.youtube.com/watch?v=sMIRux-EgtY&feature=player_embedded
AMPS80 and AMPS24
1. Why is the input breaker and wire feed size larger when you have MBS on the same Amps80 rating?
The amount of apparent power is higher than the real power and the Amps80 corrects the difference.
2. What is Input Source?
3. What is AC input mode?
4. What does alarm 244 means?
5. The system is showing Inverter “Communications Lost Alarm”. How can I fix the alarm?
FXM
1. What is the default password?
2. Have changed the default password, is there a back door password?
3. Can’t log-in via web interface, how can I reset the IP address to factory default?
4. During a short circuit condition, how long can this be sustained?
- Normally, the short circuit current is double the current rating.
5. What is the Over Load Condition for the FXM units?
6. Is there a way to power cycle the output of the unit?
7. The UPS is showing “Weak Battery” alarm, battery was replaced and still showing the alarm, how to clear the alarm?
8. Is there any effect on the unit’s functionality if Temp probe is not connected?
9. Is the Neutral between AC input and output connected together?
10. The unit does not go into Inverter mode when there is a power outage, what are the possible causes?
- Under the Controls Menu, Inverter might be set to “Disabled”. Set this to “Enabled”
- Battery might be low or not connected properly. Check for battery breaker and any loose connection.
- Possibly an issue with the unit itself, call Technical Support for assistance.
11. Instead of connecting to a battery, can I just connect the unit to a DC system?
USHA
1. What is the baud rate setting to connect to a UPS.
2. What is the default username and password for the USHA?
Bypass Switch
What is the correct mounting kit for Bypas Switch 017-183-24?
Outdoor Enclosure
SE48-1616 (Formerly AOES6)
1. Where is the thermostat that controls the fan?
2. What are the threshold setting for the thermostat?
Te45v2 and v3 Enclosure
1. How does the heat exchanger fan work?
- The heat exchanger fans start to rotate at slow speed when the interior temperature in the power compartment increases to 30°C.
- The heat exchanger fans ramp up as the interior temperature increases and reach full speed at 40°C.
- The heat exchanger fans stop when the interior temperature drops below 25°C.
2. How can I test if the fans are working?
- If temperature in the cabinet is beyond 30°C (86°F), just pull the door swith (SW5) plunger out and the fans should start rotating.
- If temperature in the cabinet is below 30°C (86°F), do the following:
- Pull the door switch (SW5) plunger out.
- Force the fans to rotate, there is two ways:
- Warm up the power compartment fan speed regulation temperature sensor #3 using a heat gun.
- Or, on the fan control board located at the back of the enclosure, right side, disconnect any of the two wires on TB512 connector.
- Fans should start to rotate. If not check if there is voltage on the fan connector. If there is more than 30Vdc, fan should rotate, if not then fan is defective.
- If there is no voltage on the fan connector, make sure that the fuses on the GMT fuse block assembly (internal use -707-175-20-041) are good.
- F4 and F6 for Te45v2 enclosure.
- F4 and F5 for Te45v3 enclosure.
3. Getting a Temp Sensor 1 fail, what are the possible causes?
- The analog input GP1 might be out of calibration.
- One of the Temperature probe connected to the Thermal Runaway Board (707-302-20-040), might be defective.
- There might be an issue on the Thermal Runaway Board
4. Installing the battery enclosure, Te45v3b away from the main power plant Te45v3, is there a special wire harness I can use to connect the alarm signals?
5. On Te45v3, breaker positions 1 to 6 are dedicated for 24Vdc. If this will not be used, can it be converted to 48Vdc?
6. Getting a TVSS alarm and no Converters are installed, how can the alarm be cleared?
- Locate the 24V TVSS alarm module along the rear wall of the enclosure.
- Move the red wire from the N.C. contact of the alarm module to the N.O. contact.
7. Where can I find spare parts list?

For other parts not indicated in the manual or above, please call Technical Support.
Te40 and 41 Enclosure
1. The hinge on the door is broken, what is the part number for the hinge?
2. The system keeps dropping the load on bank 4 every time I get a minor alarm, what can I do to fix this?
Line Power System
LPS36
1. On channels with load, it is reading the correct current but on the channels without any load, it is reading current less than 30 mA. Is there something wrong with the system?
2. Can I connect two different channels from the LPS at the other end together, downstream?
3. Logged-in with a computer to the controller, looking at the Web GUI and at the LPS window, the modules do not appear or show in the list. How can this be corrected?
- Not using Internet Explorer. Make sure to use Internet Explorer. When using other browser like Firefox or Google Chrome, make sure that IE Tab is installed.
- When using IE8 or higher, make sure compatibility view is enabled.
4. I have an existing DC Power System with a regular CXC controller, can I connect the LPS shelf to the controller?
Legacy Products
CFR Series UPS
1. The service light is ON. What needs to be done to clear it?

If needed, call Technical Support.
Pathfinder Rectifiers
1. Just installed a rectifier and after a while controller went into alarm, an Out of Tolerance alarm. How can this alarm be cleared?
How can this alarm be cleared?
The rectifier settings in the controller most likely did not match the settings on the rectifier.
Will need to do Inventory Update and Download Settings.
For systems with SM02 controllers:
- For software version v3.00 series. Log in to the controller and go to Rectifiers. Look for Inventory Update and press Enter. Next, still under Rectifiers, do the “Group Setting Initiate Download”.
- For software version v4.00 series. Log in to the controller and go to Configuration. Look for Inventory Update and press Enter. Next, press the Escape till you see the option for download and save settings.
For systems with SM03 and SM04:
Log in to the controller and go to Rectifiers. Look for Inventory Update and press Enter. Next, still under Rectifiers, do the “Download and Save”.
2. Just installed an RFXP rectifier mixed with the Pathfinder modules, controller went into alarm after, how can this alarm be cleared? Changes must be done on the current limit and slope settings.
Current Limit and Slope Settings
24V systems: set the current limit parameter to 125A or less and slope to 1.19%.
48V systems: set the current limit parameter to 62A or less and slope to 0.93%.
These menu items are found under:
- RECTIFIERS menu of the SM03 or SM04,
- RECTIFIERS, GROUP SETTINGS menu of the SM02,
- RECTIFIERS, CONFIGURE SETTINGS menu of the CXCP or CXCR.
NOTE: With the Cordex controller and the RFXP/Pathfinder combo, you have to convert the 62A
RFXP setting to a percentage of the 70A Pathfinder maximum or approximately 88.6%.
SM02
1. All three status lights are lit and the display is blank, is the controller recoverable?
2. With the controller already defective, what is the best option for replacement, if there is any?
CFR Series UPS