KRD9 Series Timer - Retriggerable Single Shot Features:

KRD9 Series Timer - Retriggerable Single Shot Features:
Timer - Retriggerable Single Shot
KRD9 Series
Features:
The KRD9 Series microcontroller timing circuit
provides excellent repeat accuracy and stability.
Cost effective approach for OEM applications
that require small size, isolation, reliability, and
long life.
Operation (Retriggerable Single Shot):
Function Type A (Output Initially De-energized): Input
voltage must be applied prior to and during timing. When
the initiate switch is closed, (momentary or maintained)
the output energizes and the time delay starts. On
completion of the delay, the output de-energizes. The unit
will time out if S1 remains in the open or closed position
for the full time delay. Reclosing the initiate switch resets
the time delay and restarts timing; the output remains
energized. The output will not energize if the initiate
switch is closed when input voltage is applied.
Function Type B (Output Initially Energized): Upon
application of input voltage, the output energizes and the
time delay starts. At the end of the time delay, the load
de-energizes. The unit will time out if S1 remains in the
open or closed position for the full time delay. Closing
(re-closing) the initiate switch resets the time delay and
restarts timing; the output remains energized.
Reset: The time delay and the output are reset when input
voltage is removed.
Connection:
L1
• Compact time delay relay
• Microcontroller circuitry
• ±0.5% repeat accuracy
• Isolated, 10A, SPDT output contacts
• Factory fixed, onboard or external adjust
• Delays from 0.1s - 1000m in 6 ranges
• Input voltages from 12 to 230V in 6 options
Approvals:
N/L2
Auxiliary Products:
• External ad just potentiometer:
P/N: P1004-95
P/N: P1004-95-X
• Female quick connect:
P/N: P1015-13 (AWG 10/12)
P/N: P1015-64 (AWG 14/16)
• Quick connect t o s crew ad aptor:
P/N: P1015-18
• Versa-knob: P/N: P0700-7
• Mounting bracket: P/N: P1023-6
• DIN rail: P/N: C103PM (Al)
• DIN rail adaptor: P/N: P1023-20
For more information see:
Appendix A, pages 156-164 for function descriptions
and diagrams .
Appendix B, page 165, Figure 1 for dimensional drawing.
Available Models:
KRD9120B
KRD92115MA
KRD92115MB
KRD9220B
External Resistance vs . Time Delay:
If desired part number is not listed, please call us to
see if it is technically possible to build .
C = Common, Transfer Contact
UTL = Untimed Load (optional)
A knob is supplied for adjustable units, or
RT terminals 4 & 5 for external adjust. See
external adjustment vs time delay chart. The
untimed load is optional . Relay contacts are
isolated .
Order Table:
KRD9
X
Input Voltage
─1 - 12VDC
─2 - 24VAC/DC
─3 - 24VDC
─4 - 120VAC
─5 - 110VDC
─6 - 230VAC
X
Adjustment
─1 - Fixed
─2 - Onboard knob
─3 - External adjust
KRD93115MA
KRD94115SB
KRD9423B
Output Current / Ambient Temperature:
X
Time Delay*
X
Function Type
─0 - 0.1 - 10s
─A - De-energized
─1 - 1 - 100s
─B - Energized
─2 - 10 - 1000s
─3 - 0.1 - 10m
*If fixed delay is selected, insert delay (0 .1
─4 - 1 - 100m
─5 - 10 - 1000m - 1000) followed by (S) sec, or (M) min .
Specifications
Time Delay
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microcontroller based with watchdog circuitry
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1s - 1000m in 6 adjustable ranges or fixed
Repeat Accuracy . . . . . . . . . . . . . . . . . . . . . . . . ±0.5% or 20ms, whichever is greater
Tolerance (Factory Calibration) . . . . . . . . . . . . ≤ ±5%
Reset Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 150ms
Initiate Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 40ms; ≤ 750 operations per minute
Time Delay vs Temp. & Voltage . . . . . . . . . . . ≤ ±5%
Input
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12, 24 or 110VDC; 24, 120 or 230VAC
Tolerance
12VDC & 24VDC/AC . . . . . . -15% - 20%
110VDC, 120 or 230VAC . . . . . . -20% - 10%
AC Line Frequency / DC Ripple . . . . . . . . . . . 50/60 Hz / ≤ 10%
Power Consumption . . . . . . . . . . . . . . . . . . . . . AC ≤ 2VA; DC ≤ 2W
Output
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Isolated relay contacts
Form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPDT
68
Rating (at 40°C) . . . . . . . . . . . . . . . . . . . . . . . . . 10A resistive @ 125VAC; 5A resistive @ 230VAC
& 28VDC; 1/4 hp @ 125VAC
Max. Switching Voltage . . . . . . . . . . . . . . . . . . 250VAC
Life (Operations) . . . . . . . . . . . . . . . . . . . . . . . . Mechanical - 1 x 107 ; Electrical - 1 x 105
Protection
Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Encapsulated
Isolation Voltage . . . . . . . . . . . . . . . . . . . . . . . . ≥ 1500V RMS input to output
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . ≥ 100 MΩ
Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC units are reversed polarity protected
Mechanical
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Surface mount with one #10 (M5 x 0.8) screw
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x 2 x 1.21 in. (50.8 x 50.8 x 30.7 mm)
Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.25 in. (6.35 mm) male quick connect terminals
Environmental
Operating / Storage Temperature . . . . . . . . . -40°to 60°C / -40° to 85°C
Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95% relative, non-condensing
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≅ 2.6 oz (74 g)
www.ssac.com • 800-843-8848 • fax: 605-348-5685
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
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