New Product News
ON-delay Timer
H3DK-A2ET
Single-mode ON-delay Timer
• Wide variety of time ranges from 0.1 s to 1,200 h.
• Power supply from 380 to 440 VAC.
Ordering Information
■ List of Models
Operating mode
Supply voltage
ON Delay
Control output
380 to 440 VAC
Model
Contact output, time-limit SPDT + instantaneous SPDT
H3DK-A2ET
■ Model Structure
Model
Terminal block
Output type
Mounting method
H3DK-A2ET
8 terminals
Time-limit SPDT + instantaneous SPDT
DIN Track mounting
Specifications
■ Time Ranges
Time range setting
Set time range
0.1 s
1s
10 s
1 min
10 min
1h
10 h
100 h
0.1 to 1.2 s
1 to 12 s
10 to 120 s
1 to 12 min
10 to 120 min
1 to 12 h
10 to 120 h
100 to 1,200 h
■ Ratings
■ Characteristics
Power supply voltage
380 to 440 VAC, 50/60 Hz
Allowable voltage fluctuation range
380 to 440 VAC: 85% to 110% of rated voltage
(−10 to 45°C)
Reset time
100 ms min. (reset voltage: 10% max.)
Power consumption
At 440 VAC: 11 VA max.
Control output
• Rated load: 120 VAC, category AC-15: 1.5 A
220 VAC, category AC-15: 1 A
440 VAC, category AC-15: 0.3 A
• Rated through current: 2 A
• Minimum load: 10 mA at 5 VDC (P level,
reference value)
Ambient operating temperature
−10 to 55°C (with no icing)
Storage temperature
−40 to 70°C (with no icing)
Accuracy of operating
time
±1% of FS max.
(±1% ±10 ms max. at 1.2-s range)
Setting error
±10% of FS ±50 ms max.
Influence of voltage
±0.5% of FS max.
(±0.5% ±10 ms max. at 1.2-s range)
Influence of temperature
±2% of FS max.
(±2% ±10 ms max. at 1.2-s range)
Insulation resistance
100 MΩ min. at 500 VDC
Dielectric strength
Between current-carrying metal parts and noncurrent-carrying metal parts: 2,500 VAC 50/60
Hz for 1 min.
Between control output terminals and operating
circuit: 2,500 VAC 50/60 Hz for 1 min.
Between contacts not located next to each other:
1,000 VAC 50/60 Hz for 1 min.
Ambient operating humidity 25% to 85%
Vibration
resistance
Shock resistance
Life expectancy
Destruction
0.75-mm single amplitude at 10 to 55 Hz for 2 h
each in 3 directions
Malfunction
0.5-mm single amplitude at 10 to 55 Hz for
10 min each in 3 directions
Destruction
1,000 m/s2 3 times each in 6 directions
Malfunction
100 m/s2 3 times each in 6 directions
Mechanical
10 million operations min.
(under no load at 1,800 operations/h)
Electrical
100,000 operations min.
(under rated load at 360 operations/h)
Degree of protection
IP30 (Terminal block: IP00)
Weight
Approx. 120 g
1
H3DK-A2ET
Connections
■ Block Diagrams
■ Terminal Arrangement
H3DK-A2ET
H3DK-A2ET
AC (DC) input
Time setting
detection circuit
ROM
Time specification
switches
RAM
A1
21
15
22
15
21
Clock
Power supply circuit
Output circuit
One-chip microcomputer
18
Indicator circuit
Power
indicator
Output
indicator
16 24
22
16
24
18
A2
(DIN notation)
A1
A2
15
21
16 18 22 24
Nomenclature
H3DK-A2ET
Front View
Bottom View
Terminal Block
(See note.)
Indicator (orange)
(Lights when Timer times out.)
Main dial (for
setting the time)
Indicator (green)
(Lit during timing. Turns OFF
when Timer times out.)
Time range switch
Note: Screw Tightening Torque
Recommended torque: 0.49 N·m
Maximum torque: 0.98 N·m
2
H3DK-A2ET
Dimensions
(Unit: mm)
■ Timers
H3DK-A2ET
100
88.2
68.6
22.5
4
84.6 71.2 52.2
Note: Terminal screws are M3.5.
■ Track Mounting Products (Sold Separately)
Refer to page 6 for details.
Operating Procedures
■ Basic Operation
Setting the Time Range
Setting the Time
● Setting the Time Range
● Setting the Time
The time range switch can be used to set the time range. Turn
the switch with a flat-blade or Phillips screwdriver.
The start time is set with the main dial.
Main dial
Time range switch
■Timing Charts
Power (A1 and A2)
ON
OFF
Time-limit contacts: ON
NC 15 and 16
OFF
Time-limit contacts: ON
NO 15 and 18
OFF
Set time
Instantaneous contacts: ON
NC 21 and 22
OFF
Instantaneous contacts: ON
NO 21 and 24
OFF
Timing indicator, green ON
OFF
(bottom indicator)
Time-out indicator, orange ON
OFF
(top indicator)
3
H3DK-A2ET
Safety Precautions
● Refer to Safety Precautions for All Timers.
Caution
Switching arcs or relay heating may cause fire or
explosion. Do not use the Timer in the presence of
inflammable or explosive gases.
The inrush current will depend on the type of load
and may influence the contact switching frequency and number of operations. Check both the
rated current and the inrush current, and allow
leeway in the circuit design.
The life of the output relay largely depends on the
switching current and other switch conditions.
Consider the actual application conditions and do
not exceed the rated load or electrical life. If the
output relay is used beyond its service life, the contacts
may fuse or burning may occur. Also, never exceed the
rated load current. When using a heater, also place a thermal switch in the load circuit.
Do not remove the external case.
Minor electric shock, fire, or equipment failure
may sometimes occur. Do not disassemble, modify, or repair the Timer or touch any internal parts.
4
Precautions for Safe Use
• Forked crimp terminals or stranded wires can be used in addition to ferrule terminals to wire terminals. When wiring two
wires to the same terminals, use the same wire type.
• Rapid changes in temperature or high humidity may cause
condensation in Timer circuits, possibly resulting in malfunction or damage to components. Check the application environment.
• Store the Timer within the rated ranges given for the Timer
model you are using. If the Timer is stored below −20°C, allow
it to warm up for three hours at room temperature before turning ON the power supply.
• Use the Timer within the ambient operating temperature and
ambient operating humidity ranges given for the Timer model
you are using.
• Use the Time within the characteristics for water and oil exposure given for the Timer model you are using.
• Do not use the Timer in locations subject to excessive dust,
corrosive gas, or direct sunlight.
• Do not use the Timer in locations subject to vibration and
shock. Long-term exposure may damage the Timer due to
stress.
• Separate the Timer from any sources of excessive static electricity, such as forming materials and pipes carrying power or
liquid materials.
• Maintain the variations in the power supply voltage to within
the specified allowable range.
• If a voltage that exceeds the rating is applied, internal components may be destroyed.
• Wire all terminals correctly.
• Use only the specified wires for wiring.
Applicable wire gauge: AWG18 to AWG22
• Install and clearly label a switch or circuit breaker so that the
operator can quickly turn OFF the power supply.
• If the Timer is left in the timed out condition for a long period of
time at high temperatures, internal components (such as electrolytic capacitors) may deteriorate quickly.
• The exterior of the Timer may be damaged by organic solvents
(such as thinners or benzene), strong alkali, or strong acids.
• For Timers with AC power input, use a commercial power supply for the power supply voltage. Although some inverters give
50/60 Hz as the output frequency, do not use an inverter output as the power supply for a Timer. Doing so may result in
smoking or burning due to internal temperature increases in
the Timer.
• Use the same type of wiring for all Timer wiring.
• When disposing of the Timer, observe all local ordinances as
they apply.
• The Timer may not operate properly in locations that are subject to sulfide gas, such as in sewers or incinerators. Products
that are suitable for operation in sulfide gas are not available
for OMRON Timers or general control devices. Seal the Timer
to isolate it from sulfide gas. If the Timer cannot be sealed,
OMRON can make special products with resistance to sulfide
gas for some Timers. Ask your OMRON representative for
details.
• Confirm that the power and output indicators are operating
normally. Depending on the operating environment, the indicators and plastic parts may deteriorate faster than expected,
causing the indicators to fail. Periodically perform inspections
and replacements.
H3DK-A2ET
Precautions for Correct Use
● Changing Switch Settings
● Other Precautions
Do not change the time unit or time scale while the Timer is in
operation. Doing so may result in malfunction. Turn OFF the
power supply before changing the setting of any switch.
● Mounting and Dismounting
• Although there are no particular mounting restrictions, the
Timer should be mounted as horizontally as possible.
• When mounting the Timer on a mounting Track, loosen the
two hooks, press the Timer onto the Track, and then insert the
hooks.
Hook
Hook
• When removing the Timer, pull out the two hooks, and then
remove the Timer from the Track
Hook
Hook
30 mm min.
• It will be easier to mount and dismount the Timer if a distance
of 30 mm or more is provided between the bottom of the Timer
and other equipment.
• If the Timer is mounted on a control panel, dismount the Timer
from the control panel before carrying out a voltage withstand
test between the electric circuits and non-current-carrying
metal parts of the Timer. (Otherwise, the internal circuits of the
Timer may be damaged.)
• The life expectancy of the control output contacts is greatly
affected by switching conditions. Always confirm operation
using the actual conditions and equipment before using the
Timer and make sure that the number of switching operations
presents no problems in performance. If Timer application is
continued after performance has deteriorated, insulation failure between circuits, burning of the control output relay, or
other problem will eventually occur.
• If the power supply voltage is gradually increased, a power
reset may occur or the Timer may time out. Use a switch,
relay, or other device with contacts to apply the power supply
voltage all at once.
• Make sure that residual voltage or inductive voltage is not
applied after the power turns OFF.
• Error in the operation time of the Timer is given as a percentage of the full-scale time. The absolute value of the error will
not change even if the set time is changed. Therefore, always
use the Timer with the set time set as close as possible to the
full-scale value of the set time range.
• When switching a microload, check the specified minimum
load given for the Timer model you are using.
• When setting the operating time, do not turn the dial beyond
the scale range.
• If better accuracy is required in the set time, adjust the dial
while measuring the operation time.
• If the Timer is reset immediately after timing out, make sure
that the circuit configuration allows sufficient resetting time.
Errors will occur in the sequence if there is not sufficient resetting time.
• When directly switching a DC load, the switching capacity will
be lower than when switching an AC load.
● Environment
• When using the Timer in an area with excessive electronic
noise, separate the Timer and input device as far as possible
from the noise sources. It is also recommended to shield the
input signal wiring to prevent electronic interference.
• The external impulse voltage entering across the power supply
terminals has been checked against a ±1.2×50 µs standard
waveform according to JEC-210, Impulse Voltage/Current
Test, of The Institute of Electrical Engineers of Japan. Surge
or noise superimposed on the power supply may damage
internal components or cause them to malfunction. We recommend that you check the circuit waveform and use surge
absorbers. The effects on components depend on the type of
surge and noise that are generated. Always perform testing
with the actual equipment.
5
H3DK-A2ET
Track Mounting Products (Sold Separately)
DIN Track
PFP-100N
PFP-50N
(Unit: mm)
7.3±0.15
4.5
35±0.3
15
25
10
25
25
1,000 (500)*
10
25
27±0.15
15 (5)*
1
*Dimensions in parentheses are for the PFP-50N.
DIN Track
PFP-100N2
16
4.5
35±0.3 27
15
End Plate
PFP-M
25
10
25
25
1,000
25
10
15
M4x8
panhead
screw
50
1.8
1
35.5 35.3
1.8
11.5
10
1.3
4.8
M4 screw
and washer
Spacer
PFP-S
16
12
5
34.8
44.3
16.5
Note 1: Order the above products in multiples of 10.
Note 2: The Tracks conform to DIN standards.
6
29.2
1
10
6.2
24
1.5
H3DK-A2ET
7
Warranty and Application Considerations
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have
any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or
other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT,
MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER
ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET
THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS,
OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON
CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE
PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,
INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE
MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of
products in the customer's application or use of the products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will
be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT
ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON
PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR
SYSTEM.
Disclaimers
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a
warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application
requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with
your OMRON representative at any time to confirm actual specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON Corporation
Industrial Automation Company
Authorized Distributor:
Tokyo, JAPAN
Contact: www.ia.omron.com
© OMRON Corporation 2010 All Rights Reserved.
In the interest of product improvement,
specifications are subject to change without notice.
Printed in Japan
Cat. No. L122-E1-01
1010
Open as PDF
Similar pages