Koyo KT-V4S-C-D User manual

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Koyo Digital Timers
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Overview
Koyo digital timers offer flexible features
at a great price. A large, easy to read
display is offered in a small 1/16 DIN
size. The large, bright red LED display
has a 12mm character display height
which allows it to be seen easily from a
distance and at an angle. In addition, set
values use a green LED display to differ-
entiate from timing values. Basic func-
tion settings are made with digital
switches. Detailed settings are selected
with digital keys, so operation is easy.
Features
• Tamper-proof: key protection can be
set for individual keys to prevent a
malfunction or tampering.
• Battery-less memory retention:
EEPROM is used to retain values in
memory, so there is no need for battery
maintenance.
• Maintenance has been reduced via
removable terminals. After wiring, the
terminal cover provides a safe barrier
for worry-free use.
• Power source for a large-capacity
sensor: you can source the power for
the sensor from the built-in power
source which supplies 60mA at
24VDC.
• Wide operating AC voltage range of
85VAC-264VAC.
• Various types of time ranges: covers ten
types of time ranges with times of
0.001 second to 9999 hours
• Five types of operating modes: settings
of on-delay, off-delay, one-shot, accu-
mulation and flicker
• Display of elapsed time/remaining time
• IP65 protective structure: front cover
panel is made of a clear membrane, so
operation with wet or dirty hands can
be worry-free.
• Fully CE and UL compliant
Product Selection Guide
Part Number Source Voltage Time Range
KT-V4S-D
KT-V4S-C-D
100-240VAC
0.001 second to 9999 hours
12-24VDC
Description
Digital timer with 10 types of time ranges (see specifications). Input power is
100-240VAC. UL and CSA approved.
Digital timer with 10 types of time ranges (see specifications). Input power is
12-24VDC. UL and CSA approved
Number of Digits
4
KT-V4S-D KT-V4S-C-D
KOYO DIGITAL TIMERS
Accessories
Part Number
PANEL-16
Description
Mounting clip for 1/16th DIN timers and temperature/process controllers. 5 clips per package

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2Koyo Digital Timers
Koyo Digital Timers Specifications
General Specifications
Source Voltage
12-24VDC
Permitted Power Fluctuation
Sensor Power
Memory Backup upon Power
Failure
Ambient Temperature
Storage Temperature
Ambient Humidity
Withstand Voltage
Impact Resistance
Vibration Resistance
Noise Resistance
Protective Structure
Weight
Approvals
UL recognized only with Class II power supply;
CSA: EN61010-1 and EMI: EN55-11, EMS:
EN50082-2.
If product has DC power supply, an EMI/EMC
filter must be installed on the power supply.
10-26.4VDC
N/A
DC power between terminals ± 1.0 kV
(pulse width 1 µ s and rise time 1 ns)
Approx. 110 grams (3.88 oz.)
Power Consumption
Approx. 4W
Power AC Power DC Power
UL listed, CSA listed
100-240VAC
85-264VAC
Approx. 11VAC
24VDC (20-28V) 60 mA (less than
10%p-p ripple noise)
EEPROM writing up to 100,000 times; Memory duration: 10 years
-10-50°C (14 to 122°F)
-20-70°C (-4 to 158°F) (with no icing)
35-85% RH non-condensing
Approx. 150 grams (5.291 oz.)
2kVAC for one minute
Durability: Displacement amplitude 0.5mm 10-55 Hz along three axes
Operating vibration: Displacement amplitude 0.35mm 10-55 Hz along three axes
Durability: 490 m/s2 along three axes
Operating impact: 98 m/s2 along three axes
AC power between terminals ±1.5
kV (pulse width 1µs and rise time
1ns)
IP65 (front panel only)
Terminals Conforming wiring
0.25-1.65 mm224 to 16 gauge
Permitted Torque
0.5 Nm (.369 ft./lbs.)
Performance Specifications
Operational Format
On-delay, off-delay, one-shot, accumulator, and flicker (with alarm output)
Number of Digits
Display
Time Range
Display
Timer Precision
Input
Start Input Response
External Reset
Output
Output Duration (flicker)
Installation
Category
Timer
4 digits
Current values: red LED, character height 12 mm; Preset value: green LED, character
height: 7mm
0.001s-9.999s/0.01s-99.99s/0.1s-999.9 s/1s-9999 s/1 s-99 min 59 s/1 min-9999
min/1 h-9999 h/1 min-99 h 59 min/0.1 min-999.9 min/0.1h-999.9 h
Elapsed time/remaining time
0.013% or ±15 ms (using large values)
Input logic: negative logic (no voltage input) positive logic (voltage input)
Less than 15 ms/5 ms/1 ms
Min. signal amplitude 5 ms
DC output: NPN open collector output/24V 100 mA. Withstand voltage 35V.
Residual voltage less than 1.5V
10-9990 ms variable every 10 ms
1/16 DIN panel mount
Input resistance: positive logic 15 k⏲;negative logic 3.3 k⏲(AC power)/1.8 k⏲
(DC power)
Input voltage: “L” 0-3V “H” 7-30V
Relay output: 1 SPDT 220VAC 2A (resistive load)
Part Number
KT-V4S-D KT-V4S-C-D
48
63
48
Mounting frame
100 (AC power supply type)
60 (DC power supply type)
6
44.5
Panel thickness: 1 to 5
50 10
DC power supply type
AC power supply type
Depth dimension
66mm
106mm
Dimensions
Dimensions in mm

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Koyo Digital Timers
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23 5
DC
output 17Reset Input
8 9 10 11 12
KT-V4S
0V
COM N.C. N.O.
KT-V4S-C
1
35
7Reset Input
8 9 10 11 12
0V
COM N.C. N.O. +
Power In Power In
24VDC, 60mA
Sensor supply
Start
Input
Start
Input
DC
output
Koyo Digital Timers Timing and Wiring Diagrams
Note: Output duration is variable from 0-9990 ms. (Default: 100 ms)
When alarm settings are 0, the DC
output is the same as the output
operations for a relay output.
Note: Alarm settings should be less than preset values. Using
alarm settings with values that exceed preset values will result
in measurement values of 0 and the alarm output (DC output)
will come ON.
On-delay Off-delay
One-shot Accumulation
Flicker
KT-V4S-D KT-V4S-C-D

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lI/O Circuit Diagrams

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Koyo Digital Timers
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•Input logic: Dry-Contact (no-volt
input)(nEG)
•Input logic: Dry-Contact (no-volt input) (nEG)
•Start input response: 15ms •Input logic: (Voltage input) (PoS)
•Start input response: 15ms
• Input current is high, so this connection
is recommended.
Recommended proximity switch: APS
Recommended proximity switch: APS
Recommended proximity switch: APS
• With the DC type, please supply source
voltage above 20 V.
• There is no DC power source. Use a separate external power source.
• Input logic: Negative logic: (no-volt input) (nEG)
• Input logic: Negative logic (voltage input) (PoS)
Input Wiring Examples (Start input/Reset input)
Output Wiring Examples
Proximity switch with NPN open collector output
DC 2-wire proximity switch
NPN open collector output Relay output
Switch or relay
Proximity switch with voltage output or PNP
open collector output

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