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Programming Options
3.1 S1 Global Options DIP Switch
The following table lists the global control options for the SK-PS programmable features and the switch settings required to select a particu-
lar feature. A detailed description of each feature is presented in the following pages. Refer to Table 3.1 for UL-compliant settings.
S1 DIP Switch
1, 2
These switches determine the command input debounce/dejitter setting (Setting applies to ALL inputs)
1 OFF, 2 OFF = Temporal (for ANSI temporal signals)
1 ON, 2 OFF = 50Hz (20 msec, for full wave rectified signals)
1 OFF, 2 ON = 6 msec (for strobe sync signals, control/relay modules)
1 ON, 2 ON = 1 msec (for strobe sync signals, control/relay modules)
3
This switch determines the function for Command Input #1.
3 OFF = Command Input #1 as Sync Configuration
3 ON = Command Input #1 as Normal Configuration
4
This switch controls the battery charger.
4 OFF = Internal battery charger disabled
4 ON = Internal battery charger enabled
5, 6
These switches determine door holder dropout delay after AC power loss
5 OFF, 6 OFF= Power does not drop out
5 ON, 6 OFF = 5 minutes
5 OFF, 6 ON = 60 seconds
5 ON, 6 ON = 15 seconds
7, 8
In DEFAULT MODE: (S1 DIP Switch 9
ON, 10 ON)
These switches determine the AC loss
delay timer
7 OFF, 8 OFF = 30 hours
7 ON, 8 OFF = 12 hours
7 OFF, 8 ON = 2 hours
7 ON, 8 ON = none
9, 10
These switches determine the operating mode of the power supply.
Return switches to Retrofit or Default Mode to exit change output circuit configurations and display trouble history modes!
9 OFF, 10 OFF = Retrofit Mode (existing, legacy installations)
9 ON, 10 OFF = change output circuit configurations
9 OFF, 10 ON = display trouble history
9 ON, 10 ON = Default Mode (UL 864 10th Edition compliant)
1
Debounce/dejitter provides settling time for input signals to avoid false triggers.
2
Strobe synchronization only works with non-coded NACs.
3
Output circuit(s) must be set to activate on Input #2 or Input #3, if applicable. See, "Command Input #1" below.
3.1.1 Global Programmable Features Description
Input Debounce/Dejitter/Delay
Signals from electronic circuits or relay contacts can have a small unstable time when changing state (OFF to ON, or ON to OFF). This
means the signal can briefly "bounce" between states before stabilizing to the desired state, causing signal "jitter" during this time. The SK-
PS provides four "debounce/dejitter" settings, as shown in the table below. These settings provide time for a NAC Input signal to stabilize
before that NAC Input will recognize it as a valid signal, and not just "noise", so as to prevent false activation of Output circuits. Input
debounce settings can be used as needed. Unless the system experiences input "noise" issues, apply 1ms setting for general use.
Position 1
Position 2
OFF
ON
OFF
ON
24
In RETROFIT MODE: (S1 DIP Switch 9 OFF, 10 OFF)
DIP switch 7 determines the AC loss delay timer
DIP switch 8 determines which trouble relays will report the AC and ground faults
Table 3.2 S1 Global Options DIP Switch Settings
Setting
OFF
Temporal
Debounces ANSI temporal signals. Allows for a 0.5 second ON signal with an almost 2
second OFF signal to trigger a continuous ON input signal. Do not use for strobe sync
signals.
OFF
50Hz (20msec)
Debounces FWR (full wave rectified signals). Allows an input signal with 50Hz, 33% duty
cycle to trigger a continuous (i.e. filters FWR input signal to appear constantly on) ON input
signal. May apply to legacy panels. Do not use for strobe sync signals.
ON
6 msec
Input delay for strobe sync signals (i.e. Slave Configuration using sync input), or
control/relay modules (i.e. Master or Aux. power Configuration using trigger input).
ON
1 msec
Input delay for strobe sync signals (i.e. Slave Configuration using sync input), or
control/relay modules (i.e. Master or Aux. power Configuration using trigger input). Must be
the only one used when cascading power supplies. Refer to Section 2.8.1 on page 19.
Table 3.3 Debounce/Dejitter Settings
Function
2
3
7 OFF = 2 hours
7 ON = none
8 OFF = AC fault and ground fault reported by the Input #1/
Input #2 trouble relay and the General Trouble relay
8 ON = AC fault is reported only by the AC trouble relay.
SK-PS Series Instruction Manual — P/N LS10227-002SK-E:C 2/2/2022
S1 Global Options DIP Switch
1
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Notes
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