ESDR421A4工业自动化与控制的延时继电器规格书PDF中文资料

ESDR421A4属于工业自动化与控制的延时继电器。由力特公司制造生产的ESDR421A4延时继电器延时继电器是使用较小控制信号启动或停止大负载的机电器件。这些器件内置有时间延迟来控制继电器的触发。功能包括间隔、关闭延迟、打开延迟、单次、可编程（多功能）、重复周期、双定时器、信号开/关延迟和 Star/Delta 控制器。

描述 Description

The ESDR Series offers independent time adjustment of both

delay periods. Adjustment options include fixed, onboard or

external adjust. The ESDR is recommended for air drying,

automatic oiling, life testing, chemical metering and automatic

duty cycling. This series is designed for general purpose

commercial and industrial applications where a small, cost

effective, reliable, solid-state timer is required. The factory

calibration for fixed time delays is <±5. The repeat accuracy,

under stable conditions, is 0.1 of the selected time delay.

This series is designed for input voltages of 12VDC to 230VAC

in five ranges. Time delays of 0.1 seconds to 1000 minutes are

available in six ranges. The output is rated 1A steady and 10A

inrush. The modules are totally solid state and encapsulated to

protect the electronic circuitry.

Operation (Recycling - ON Time First)

Upon application of input voltage, the output energizes and

the T1, ON time begins. At the end of the ON time, the output

de-energizes and the T2, OFF time begins. At the end of the

OFF time, the output energizes and the cycle repeats as long as

input voltage is applied.

Reset: Removing input voltage resets the output and time

delays, and returns the sequence to the first delay.

Operation (Recycling - OFF Time First)

Upon application of input voltage, the T2 OFF time begins. At the

end of the OFF time, the output energizes and the T1 ON time

begins. At the end of the ON time, the output de-energizes and

the cycle repeats as long as input voltage is applied.

Reset: Removing input voltage resets the output and time

delays, and returns the sequence to the first delay.

FEATURES BENEFITS

Microcontroller based Repeat Accuracy + / -0.1,

Factory calibration + / - 5

1A steady, 10A inrush

solid-state output Provides 100 million operations in typical conditions.

Totally solid state

and encapsulated

No moving parts to arc and wear out over time and

encapsulated to protect against shock, vibration,

and humidity

ON/OFF recycling with

independent adjustment

of both time periods

Separate on and off timing settings are knob

adjustable for added flexibility

Compact, low cost

design measuring 2 in.

(50.8mm) square

Allows flexiblility for OEM applications