Repeat Cycle Timer
The ICS KD series repeat cycle timer produces an output which alternates between energized and deenergized states at a repetitive rate. The first cycle begins when input voltage is applied to the timer. During this period the output is deenergized. At the end of this off time, the output energizes and the on time begins. When the on time ends, the output deenergizes and the off time repeats. This off/on sequence repeats continuously while input voltage is present. When input voltage is removed, the output deenergizes and the timer resets.
The KD5 Series repeat cycle timer provides equal off and on times, controlled by a single timing resistor or potentiometer. The KZ Series produces two independent on and off times, controlled by two onboard controls.
• Digital Countdown Timing Module
• Ranges from .1 second to 10 hours
• Digital Countdown Timer Circuit
• Fixed or Externally Adjustable
• Thick Conformal Coating
• Miniature PC Board
• Printed Circuit Mounting
Table 1. Part Number Selection
Timer Action:
(5) Repeat Cycle
OFF & ON Times are equal, single adjustment
(6) Repeat Cycle
OFF & ON Times are independently adjustable
Range:
Standard
(1) 0.1 to 10 second
(4) 1 to 60 second
(2) 10 to 600 second
(5) 1 to 60 minute
Nonstandard
(3) 10 to 600 minute
(0) *Special Time
*customer defined
Input Voltage:
Standard
(2) 24 VAC
(1) 120 VAC
(8) 12 VDC
(4) 24 VDC
Nonstandard
(7) 12 VAC
(5) 240 VAC
(6) 48 VDC
(3) 110 VDC
KD6xxx Icsotimer Order Code
Example: KD 6 2 1 8
KD = Digital Countdown Series
(6) = Timer Action = Repeat Cycle
(2) = Off Time = 10 to 600 second
(1) = On Time = .1 to 10 second
(8) = Input Volts = 12 VDC
KD5xx Icsotimer Order Code
Example: KD 5 4 1
KD = Digital Countdown Series
(5) = Timer Action = Repeat Cycle
(4) = Timer Range = 1 to 60 second
(1) = Input Volts = 120 VAC
Notes. OFF Time is first in KD6 timing range order code. OFF Time cycles first when voltage is applied on both KD5 and KD6 timers.
Options: Fixed and Special time ranges from .05 seconds to 10 hours.
Note. Load and Rt in wiring diagrams are customer supplied items.
KD6 adjustable timer wiring diagram.
KD6 fixed timer wiring diagram.
KD5 adjustable timer wiring diagram.
KD5 fixed timer wiring diagram.
Note. When viewing the timer module from the "flat side" with the catalog numbers and the leads facing downward, Pin 1 is on the far left.
Input Current:
Idle (Action 5) = 5 ma.
(Action 6) = 8 ma.
Output Voltage:
(Input voltage less on-state voltage drop)
On-state voltage drop
Action 5 & 6 (AC) = 2.0 VRMS
Action 5 & 6 (DC) = 1.5 VDC
Output Current:
Maximum
KD5 & KD6 = 500 ma.
Minimum
Action 5 & 6 (AC Only) = 20 ma.
Operating Parameters:
Repeat Accuracy:
Fixed Conditions = ±.5%, ±1 cycle for AC units Overall variation = ±3%
Input Voltage Range:
±10% @ 50 or 60 Hz for AC units, ±10% @ 20% max. pp. ripple for DC units
Temperature Range:
-10º to 70º C operating
-20º to 85º C storage
Reset Time:
All Actions = 50 ms
Start-Up (Action 5 & 6): Timer starts with Off cycle first
Size (less leads):
Action 5 = 1.38" Square x .5" Thick
Action 6 = 2.0 L" x 1.38" W x .5" Thick
Termination:
22 AWG solid tinned copper leads 1.75" Long
