To Kill line (all connected within each
cabinet by Power & Kill jumpers) or to
all Kill lines requiring a common kill
function if not daisy-chained.
NC
What to specify or order
For ZipOff switch order ZOS-5K. (services up to 5 Kill equipped boards)
Includes switch with ZipOff film legend and flip up security cover.
Switch mounts in 5/8" round hole in panels up to 3/16" thick.
ZOS-5K Contractor C.O.D. price: $40.
Delivery: Stock.
139-0256-04.1 3/25/04
See
http://www.lyntec.com/139-0256.pdf
for latest version.
Built-in Kill, Hurry-Off and ZipOff (PANIC) switch option
for
MSLC and MSP and PDS-8EK series AC SEQUENCING SYSTEMS
What the functions do
Kill — EMERGENCY SHUTDOWN
Provides an
IMMEDIATE
shut down method for the
sound system at the command of a fire alarm,
emergency announcement system, or ZipOff switch.
Optional ZipOff switch, ZOS-5K
Provides a full AC Power shutdown within 250 milli-
seconds after the ZipOff button is pushed.
In case of a runaway oscillation or other unexpected
signal which could damage the loudspeakers if
sustained...
Lift the protective cover and press the ZipOff button...
it latches down and lights red.The AC power se-
quencing system immediately zips off.
Press again to unlatch... the light goes out and the
sequencer restarts to repower the system.
or
Use the new Hurry-Off function at any OFF switch.
Hurry-Off
The MS-12 Modular & PDS-8EK Sequencing boards
have a new Hurry-Off function. If you
hold down
any
OFF switch for two seconds, a "Kill without restore"
function is triggered.The system shuts down within 250
milliseconds and doesn't restart until you give it a new
ON command. Kinda like a DSP undo command.
How they work
All LynTec sequencing systems have the ZipOff load
shedding feature.The older SLC, SP and PDS-8's
implemented it by interrupting 24v ac power.
The newer Modular sequencers, the MSLC and MSP
series and the PDS-8EK, load shed when power fails,
but also have a Kill function that is triggered by ground-
ing the Kill line.
The red Kill LED, adjacent to the Kill terminal on the
board, lights and Zip-Off is immediate.The kill line is a
low current line. Long control wiring may be used without
concern for loop resistances up to 32Ω. (22 gauge, up to
a 1,000 ft. run [2,000 ft. loop] or a 680 ft. run of 24 ga).
The ON/OFF
latching
pilot relay remembers that the
sequencer was ON. When the Kill line is opened, the
ON sequence repeats, bringing the AC power back on.
For the Modular series control boards the ZipOff switch
connects the Kill line to common, through the Zip-Off
switch's LED, initiating the Kill function.
LynTec.com
SOUND SYSTEM
A.C. POWER
ZipOff
Push to SHUT DOWN.
Push AGAIN to restart sequence.
120-6012-03
±LED
±LED
NO
C
ZOS-5K
ZipOff
Switch
NC
NO
CPush to latch
Push to unlatch
Wiring pictorial
on reverse side
To
Common
SHUNT R(for more than 5 boards)
Normally open fire alarm
contact. Close to turnoff
all sequenced circuit
breakers (Kill).Open to
resume power-up
sequence.
For multiple ZipOff
switches connect in
parallel across Kill and
Common.
MULTI-BOARD SHUNT R
The Kill line is an 11 ma. current source from each MS-12 Modular
Sequencer or PDS-8 EK board
A voltage sensor on the Kill line determines the Kill threshold.
The Kill line has an open circuit voltage of 28 volts which must be pulled
down to less than 10.5 volts to generate a Kill function. Grounding the Kill
line to Common will always kill the system instantly.This current source may
also be used to light the Zip-Off switch's, red LED.
The red ZipOff LED only requires 10 ma. For systems where multiple-board
system's Kill lines are paralleled, a 9 v.voltage regulator chip is installed in
the ZOS-5K which will automatically shunt the excess source current of up
to 5 boards. For more than 5 boards an additional resistor must be used in
parallel with the ZipOff switch LED.To prevent damage due to overheating
the voltage regulator chip, the resistor should be installed as shown with
full
length leads
to get the heat source away from the switch.
Total Number Shunt Resistor
of boards required
1-5........................ none
6 .................... 820Ω, 1/4w
7 .................... 430Ω, 1/4w
8 .................... 270Ω, 1/2w
9 .................... 200Ω, 1/2w
10 ................... 150Ω, 1/2w
11 .................... 150Ω, 1w
12 .................... 120Ω, 1w
13 .................... 100Ω, 1w
14 ..................... 92Ω, 1w
15 ..................... 82Ω, 1w
16............... 75Ω, 2w
17............... 68Ω, 2w
18............... 62Ω, 2w
19............... 56Ω, 2w
20............... 56Ω, 2w
21............... 51Ω, 2w
22............... 47Ω, 2w
23............... 47Ω, 2w
24............... 43Ω, 2w
25............... 39Ω, 2w
9v voltage
regulator
☛
www.LynTec.com
8401 Melrose Drive • Lenexa, KS 66214 • Voice 800-724-4047 or 913-529-2233 • Fax 888-722-4157 or 913-529-4157
