TSD7421中文资料力特数据手册PDF规格书

描述 Description

The TSD7 Series utilizes only two terminals connected in series

with the load. Interval timing mode period is achieved by using a

small portion of the AC sine wave allowing sufficient voltage for

circuit operation. It can be used as an interval timer to control or

pulse shape the operation of contactors, solenoids, relays, and

lamp loads. The TSD7 Series can be wired to delay on the break

of a switch for energy saving fan delays.

Operation (Interval)

Upon application of input voltage, the output energizes and the

time delay begins. The output remains energized throughout the

time delay. At the end of the time delay, the output de-energizes

and remains de-energized until power is removed.

Reset: Removing input voltage resets the time delay and

the output.

Operation (Delay-on-Break)

Upon closure of SW1, the load is energized and the timer is

reset (zero volts across its input terminals). Opening SW1 reapplies

input voltage to the timer, the load remains energized

and the time delay begins. At the end of the time delay, the

output de-energizes. If SW1 is open when power is applied, the

load will energize for the time delay then de-energize.

Reset: Reclosing SW1 resets the timer.

FEATURES BENEFITS

Microcontroller based Repeat Accuracy + / - 0.5,

+ / -1 time delay accuracy

Extended

temperature range

Rated to 75°C operating temperature to withstand

high heat applications

Compact, low

cost design Allows flexiblility for OEM applications

1A steady solid-state

output, 10A inrush 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

Two terminal series

load connections

Provides quick and easy installation for new or

existing systems