Noise at power supply

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Answer
Some transformers in the power supplies provide a little humming noise and that is normal. If the humming in Von Duprin PS873 power supply is loud follow these steps. Remove the load from the outp...
With the SUS connected to the AD400, in the EDIT tab there are radio communication settings "FIRST/DELAY/RETRY." FIRST - Is the first delay after the initial transmission of credential data, befor...
AD400 factory default settings when shipped are FIRST = 300 (m sec), DELAY = 200 (m sec) and RETRY = 5  
To change FIRST/DELAY/RETRY connect and couple the SUS/HHD to the AD400 and find under the EDIT tab the FIRST/DELAY/RETRY settings. See notes Or connect the SUS/HHD t...
 AC-voltage or "noise" on a power line can cause hum. Ensure supply is filtered and regulated 12 or 24 volts.Not a transformer.Also ensure hardware is properly secure eliminating the poss...
If a magnetic lock is buzzing or noisy it could be the result of an AC component riding on the DC supply voltage. Using a meter, check for AC riding the DC level. If possible test the mag lock wit...
Rattling could be caused by improper mounting of the mounting plate or armature. Make sure all components are properly secured.
Allegion product lead times, freight policies and guidelines are available only to authorized distributor partners. Authorized Allegion Distributor Partners can view the current freight policies b...
A low battery could cause the exit alarm ALK to chirp.  Replace the battery and if it is  still chirping, then replace the circuit board part number 101030-00.
The ALK exit alarm will sound when the exterior trim is used to enter from pull side without using access control when an LX latch bolt monitor switch is used instead of RX push bar monitor switch.
Make sure the lock AA batteries are good. 4.8 VDC or higher.
When in its “Active state”, the mechanical key switch can prevent USB connection. Make sure the lock key cylinder and tailpiece are properly installed.
Make sure the mechanical triangles on the back of the outside escutcheon are aligned properly.  See the installation instructions at www.schlage.com/support Schlage Technical Support.&nbs...
If the Schlage Utility Software pops up a "E201 error", just ignore it, and tap "Device Options" or update your firmware. See 78451  
Make sure the HHD/SUS is set to USB communication by checking the small icon right of the "No Device Connected" message.  The symbol should be a USB symbol when working with USB enable product...
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
If the Chexit device shipped prior to 8-24-2015  is not adjusted correctly ( Check vertical rod or Mortise finger) without using the door position switch and nuisance delay is&n...
 
STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90 and...
The following could cause the Chexit device shipped prior to 8-24-2015 with solenoid driven to go into weak alarm with solid LED light: Wrong power supply- Chexit device requires  a...
PS902 is a 2 amp power supply and each E996L electric trim draws 0.25 amps at 24VDC. You can have up to eight E996L electric trim per PS902 power supply.
BAA/ARRA stand for Buy American Act and American Recovery and Reinvestment Act. A brief description of some of the federal requirements can be found in the BAA Catalog on the Allegion...
Country of Origin (COO) information can be found in the Buy American Act (BAA) brochure.
To obtain product certification forms:Download the BAA Catalog on the Allegion website Complete the information requested in the the BAA Catalog with a detailed copy of the prod...
The regulator on the main PS873 circuit board has failed.  Replace the PS873 with PS914 power supply.
Von Duprin warrants that the product manufactured by it and delivered here under will be free of defects in material and workmanship for a period as follows: Exit devices and trim for 36 months...
RX switch is request exit and LX switch is latch bolt monitor switch. They do not required a power supply directly. The electrified hardware that RX or LX switch conne...
The PS861, PS873, or PS902 power supply can be used to operate the Von Duprin E996L trim.
The Von Duprin E996L trim required .22 amps at 24VDC.
The programming processes for Allegion devices can be both product and features specific.  Some products programming processes are electronic in nature, others are physical in nature. &nbs...