HCFA Q Series - Connector Installation and Wiring

64
 About the contact protection
When using clutches, motors, electromagnetic coils or other inductive load, surge current will occur at
power-on, and inverter voltage will occur at power-off. Surge current and inverter voltage drop
significantly shorten the life of short contacts. To suppress this, please set the contact protection circuit.
Contact protection circuit examples
 The load coil rating should be less than the contact capacity.
 The reverse withstand voltage of the diode should be 10 times greater than circuit voltage, and the
positive current should be greater than load current.
 The diode, nonlinear resistor and CR circuit should be installed directly on the relay coil terminal.
4-2-3 Connector installation and wiring
 Connector cable requirement
Pay attection to the following precautions before connector wirinfg：
 Use the cables that meet the following requirements
Table 0-1Connector cable requirements
Items
Specifications
Mounting method
Push-in
Pushing force (single contact)
10N
Cable type
Copper wire only (aluminum wire cannot be used)
Cable length
7-9 
Cross section
Single stranded wire
0.08-1.50 

/28-16 AWG
Multiple stranded wire
0.25-1.50 

/24-16 AWG
Wiring sleeve
0.25-0.75 

/24-20 AWG
 After wiring, make sure that the connector contacts fully clamp the cable