are DC voltage operators polarity sensative

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If the Main AC fuse is blowing, the control box is defective and needs to be replaced.  The "Main Fuse" is a (5x20MM) 1 Amp Slow Blow fuse. If the 12VAC fuse is blowing, verify they are not trying...
The Senior Swing operator has a 24VAC output , rated at 1.5 Amps.
Causes for AA battery drain in AD-Series LOCKS Possible Cause Fix/Corrective Action 1)      One the four (or eight) AA was inserted reversed and the rese...
Causes for AA battery drain in CO-Series LOCKS - Possible Cause Fix/Corrective Actions  One of the four AA batteries was inserted reversed and the reserved battery drains the other batteries. ...
Devices were shipped from the factory with motor driven after 8-24-2015. First confirm that you are using PS900 series (902,904,906 or 914) power supply.      1. Mea...
Devices were shipped from the factory with solenoid driven prior to 8-24-2015.  First confirm that you are using a PS873 or PS914 power supply.Measure the DC voltage at the ten wire hardness a...
The SUS can change the logic polarity of the AD400/WRI400 PIM400-TD2 outputs RTX, DPS, TROUBLE, and REN from LOCK/DOOR PROPERTIES Edit tab. You can change High to Low to High using the ed...
  These SUS settings have no effect when the AD400 is linked to a PIM400-485; because the PIM400-485 reports the logic status with RSI-485 commands and not logic levels. The settings are gray...
If a power supply is not outputting DC power, 12 or 24VDC at the Power supply main board lower right terminals ( DC+ DC-), there are several potential causes. ·         Legacy Power Supplies (50...
The 5100 strike details are listed below: Only operates with 12VDC or 24VDC power supply. Will not operate with AC transformer. 12 or 24VAC can be converted to 12/24VDC using Von Duprin SO12 o...
The SEH is an "electronic holder" (ONLY) that is used to hold open a Fire Rated opening. It requires a door closer to be mounted on the opposite side. It is normally used on an existing opening wit...