Check sheet (1/2) – Panasonic ASCT1F46E User Manual

Page 24

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Product name:

Relay name:

Date:

Refer to the following
page and item on
Page / Category -
Section

Safety

Does the vehicle system have a fail-safe in case of a relay failure?

p1/1-1、p1/2-4

Has it been confirmed by testing under actual load, actual circuit, and
actual condition?

p2/4-1

Have load type, load current characteristic, and current value been
checked?

p2/4-2~4-9

Isn't the applied contact current too small ? (Small current is likely to
decrease the contact reliability.)

p2/4-10

Has connecting load polarity been checked?

p2/4-11

Is the load likely to cause instant voltage drop?

p2/4-12

Isn't the applied contact voltage too high? (High voltage decreases
electrical life.)

p3/4-13

Isn't applied coil voltage too high? (High voltage affects electrical life.)

p3/4-14

Isn't short pulse applied to coil?

p3/4-15

Isn't the switching frequency too high even including at abnormality?

p3/4-16

Doesn't switching continue for a long time?

p3/4-17

Does it switch under high temperature?

p3/4-18

Have precautions been checked for using of coil surge absorption
circuit?

p3/4-19

Have you checked there is no sneak current or voltage to the relay coil?

p3/4-20

Is there stray capacitance between lead wires?

p3/4-21

Have precautions been checked for using of contact protective circuit?

p4/4-22

Is there a risk of dead short in the power supply?

p5/4-23

Is there a risk of short circuit in the power supply at load rejection?

p5/4-23

Is there a risk of insulation and breakdown voltage between contacts in
each pole when high voltage is applied to a twin relay?

p5/4-24

Has hot start been considered?

p5/5-1

Is the ambient temperature within the range of use? Also, is the ambient
temperature characteristics considered?

p5/5-2

Is the applied voltage below the maximum continuous applied voltage?

p5/5-3

Is there a risk of using PWM control? (PWM control requires careful
attention.)

p5/5-3

Doesn't coil of twin relay operate at the same time?

p6/5-4

Hasn't the current continuously applied to coil over a long period?

p6/5-5

In case of relay operation by electric circuit, is the circuit designed in
consideration of mal-function?

p6/6-1、p8/6-2

Doesn't the surge voltage of relay cause mal-function or destruction of
transistor circuit?

p6/6-1、p8/6-2

When relay is applied to an electric circuit, has voltage drop caused by
other electric components on the circuit been considered?

p6/6-1、p8/6-2

Coil operation
circuit

Load/
Electrical life

Check item

Check

box

Category

Coil operation
voltage

Check sheet (1/2)

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