Connect the test circuit as shown in Figure 2, and adjust the power supply voltage to DC24V. First close K1, and reset the stopwatch, then close K, the number displayed when the stopwatch stops counting is the slow suction time of the road; disconnect K, K1. Then close K2, K3, K4, and repeat the above process, You can complete the other three-way slow suction time test.

Precautions

A) the identification pin numbers of the programmable time relays are the same. Please confirm the corresponding slow suction time of the corresponding type of relay before use.

B) Terminals 1, 2, 3, and 4 of the two coils of the relay are directly connected in parallel with the two diodes on the printed circuit; therefore, when measuring the electrical characteristics of the relay, the positive pole of the power supply must be connected to terminals 1, 3, and the negative pole of the power supply must be connected On terminals 2, 4.

C) Contacts 11 and 12 are already occupied by the relay, and the number of contacts that the user can use is 2QH, 1Q.

D) the position of the relay contact system is shown in Figure 6. When in use, the socket must be equipped with an identification pin.

E) the use environment of the relay should have good ventilation conditions and dust-proof equipment. and used in specially designed circuits; in special circumstances, the electrical characteristics and contact capacity of the relay should be considered to ensure the reliable operation of the relay.

Faults and troubleshooting methods

Relay contact has no output

the analysis and elimination methods of the relay contact without output are as follows:

(1) Make sure that the relay and socket should be reliably plugged in;

(2) Check that the relay should not be mechanically blocked. If a foreign object in the relay blocks the armature, the armature cannot work reliably (forward rotation) or release (reverse rotation), and the contacts cannot be reliably contacted;

(3) Check that there should be no foreign matter between the contacts, there is foreign matter between the contacts, and the contacts cannot be reliably contacted;

(4) Check that the contact resistance of the relay contact should not be too large.

Packaging, transportation, storage

(1) Packaging

the outer packaging of the relay adopts a carton structure, and the carton is equipped with a foam box to ensure that the relay will not damage the instruction manual of the relay in each packaging box during the normal transportation process.

(2) Precautions for transportation

during storage and transportation, the relay should not be subjected to strong vibrations, collisions, or rain or snow.

(3) Storage conditions, storage period and precautions

the relay should be stored in a well-ventilated warehouse with a temperature of -25°C, 10-40°C, a relative humidity of less than 80%, and no acid, alkali or other harmful gases around. It should not be exposed to rain and snow during storage.

the storage period is one year, and the storage period should be inspected or repaired before use.