• PS873 Power Supply Plus 871-2, 871-2Q, 873-4TD/AO Option Boards
12 Route Two Wires from QEL Exit Device to Power Supply
QEL Electrical Load
Voltage: 24 VDC
Current: 1.0 A inrush (0.5 sec)
0.14 A holding
PS900-Series power
supply with 900-Series
option board(s)
installed
QEL device used with
EPT, Door Loop, or
Electric Hinge/Pivot
Distance
(one way)
200’18AWG
320’16AWG
500’14AWG
800’12AWG
Wire
Gauge
EPT shown. A door loop
or electric hinge/pivot
may also be used.
QEL Exit
Device
Note: Power wires to QEL
are not polarized.
5
Page 6
13 Install 900-2Rs, 4Rl, or 4R Option Board(s) into Power Supply
b
c
Secure Board(s) with Screws
Option 1
Option 2
Option 1
Option 3
Option 2
Option 1
PS902
1 Board
PS904, 914
2 Boards
PS906
3 Boards
1
a
Review Available 900 series Option
Board Mounting Locations (Gray)
PS902
PS904
PS914
PS906
1
12
2
3
1
Plug Option Board Cable into
any Available Option Connector
3. The QEL is compatible with an existing 900-2Q board
if currently installed.
5. When powering multiple components, verify that the
amperage requirements of all components combined
does not exceed the power supply output rating.
4. Latchbolt retraction of (2) sequenced QEL’s requires
more than 1 second to complete.
2. If installing board in location 2 or 3, rotate board 180˚
Notes: 1. 24VDC output setting required when QEL
device connected
14 Connect Input and Output Wires to Option Board (2RS Shown)
Sequential Mode - Typical Wiring
Note:
Fail secure
output only
allowed if
approved by
Authority Having
Jurisdiction
PS900
Series
120/240 VAC
50/60Hz
SC I1 01 I2 02 GND
2RS
Access
Control
for
Devices
1 & 2
(PS900
Series only)
Input I1 will activate both outputs
EPT-2/10
QEL Device 1 QEL Device 2
EPT-2/10
Individual Mode - Typical Wiring
PS900
Series
2RS
SC I1 01 I2 02 GND
120/240 VAC
50/60Hz
Access
Control
Device 2
Access
Control
Device 1
Input I1 will activate output 1
Input I2 will activate output 2
EPT-2/10
QEL Device 2
for
EPT-2/10
QEL Device 1
for
6
Page 7
15 Check Operation
A. Activate each input and verify all QEL devices operate properly.
B. If any device does not operate properly, see step 16 for troubleshooting.
16 If Necessary, Troubleshoot Operation (LED is only visible with the mechanism cover removed)
Power at the
QEL
LED - Solid green
Latchbolt - retracted
LED - Solid red after latchbolt
24VDC
24VDC low
29VDC or
greater
13VDC or
lower
0VDC
0VDC
*For information about adjusting exit devices, you can nd their installation instructions in the support area at www.allegion.com/us
or call Technical Services at 1-877-671-7011
attempts to retract multiple times
LED - Flashing green/red
Latchbolt - not retracted
LED - Flashing green
Latchbolt - retracted
LED- Flashing red
Latchbolt - will not retract
LED - o
Latchbolt - not retracted
LED - o
Latchbolt - retracted
QEL ResponseCondition/Solution
Operation normal, latch retracted immediately
Latchbolt cannot fully retract mechanically
Verify mechanical adjustment (on vertical rod or mortise lock devices
if used). Remove and reapply input voltage to reset this condition.*
See Check Mechanical Operation on page 8 as needed.**
Excessive tamper (while power applied, the pushpad was pulled out
at least 3 time)
Wait 15 seconds and latchbolt will retract again OR remove and
reapply power to clear condition
Voltage low during latchbolt retraction (latchbolt retracts at reduced
force)
Wire length is too long, wire gauge is too small or power supply has
poor regulation
Input voltage is too high for proper operation
Wrong power supply, power supply defective.
Input voltage is too low for proper operation
Wrong power supply, power supply defective or not set to the proper
output voltage.
To set, remove AC power from power supply, change power supply
setting from 12 to 24VDC, then reapply AC power and verify proper
operation.
No input voltage
Problem with the power supply, control switch or wiring
No input voltage
Mechanical dogging is engaged
LED
on Device
7
Page 8
17 Check Mechanical Operation
33A/3527A98/992798/9947WDC
33A/3547A98/994798/9957
98/9975
1. Make sure device is not dogged for SD-QEL / HD-QEL.
2. Depress pushbar and make sure latch bolt retracts and extends
fully (see Figure 1).
3. If latch bolt does not retract or extend fully, adjustments may be
required per the device installation instructions.
33A/3527A, 98/9927, 98/9957
Latch bolt
deadlocked
(will not
Latch bolt
stays retracted
Release
trigger
extended
push in)
with door
closed
³⁄₁₆"
with door
open
33A/3547A, 98/9947, 98/9947WDC
Latch bolt deadlocked (will not push in)
Flush within ¹⁄₁₆"
⁵⁄₈"
33/3549A98/9949
33/3550A-WDC98/9949WDC
98/9950WDC
1. Make sure device is not dogged for SD-QEL/HD-QEL.
2. Depress pushbar. Door should begin to open with pushbar
depressed halfway.
3. Close door. Top latch should be secure. If two point latch, bottom
latch should be secure as well.
4. If device does not function as described in steps 2 and 3,
adjustments may be required per the device installation
instructions.
Any HD Device
1. Fully depress pushbar.
2. Insert hex dogging key and turn clockwise.
3. Release pushbar and verify latchbolt remains retracted.
4. Fully depress pushbar.
5. Insert hex dogging key and turn counter clockwise.
6. Release pushbar and verify latchbolt extends fully.