Applicable environment

a) Ambient temperature: -5℃~+40℃;

b) Relatively moderate: not more than 90% (temperature +25℃);

c) Air pressure: not less than 70KPa (equivalent to an altitude below 3000m);

d) Vibration: the frame frequency is not more than 15Hz, and the amplitude is not more than 0.45mm;

e) Rated voltage: DC 24V, voltage fluctuation range 24X (1±10%V;

f) Working position: horizontal;

g) There is no harmful gas causing explosion hazard around, and good dust-proof measures should be applied.

Mechanical properties

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 the terminals 1, 3, and the negative pole of the power supply must be connected to the terminals 1, 3. On terminals 2, 4.

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

d) The position of the relay contact system is shown in Figure 1. 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 does not release

The relay non-release analysis and troubleshooting methods are as follows:

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

(2) Check that the input voltage or current of the relay coil should meet the requirements of the system circuit for reliable release of the relay.

Method: Use a multimeter to check that the voltage relay coil input terminal voltage on the socket should be less than the release voltage of the relay; use a multimeter to check that the voltage drop of the current relay coil input terminal on the socket should meet the requirements for reliable release of the relay in the system circuit; otherwise, it is a system failure;

(3) If the above two items are normal, it can be determined that the relay is faulty and the relay should be replaced;

(4) Check that the relay should not be mechanically blocked. If a foreign object in the relay blocks the armature, the relay cannot be reliably released.

maintenance

Daily maintenance and maintenance items are as follows:

a) Keep the relay and socket clean;

b) Observe whether the relay operation status is normal;

c) The relay should be replaced in time for abnormal operating conditions and serious contact burnout.

Regular maintenance:

In the electrical life and life management cycle of the relay, the maintenance cycle of the infinite relay and rectifier relay should be five years; the maintenance cycle of the stepless enhanced contact relay, the poled relay and the biased pole relay should be three years; the maintenance cycle of the stepped enhanced contact relay The period should be one year; appearance inspection and performance inspection should be carried out after overhaul.

Installation Precautions

1. When installing the relay, make sure that the insulation interval between the sockets is intact, the socket hanging spring is intact, and that the socket identification pin is in the correct position and should not be missing.

2. Pay attention to the relative position between the relay and the socket when plugging in the relay to avoid damage to the relay or socket during plugging.

3. When repairing and replacing the relay, first remove the fixed relay spring, and then pull out the relay. Do not use excessive force or shake left and right when pulling it out, as it may damage the relay or socket.