5.6 H: Terminal Functions NOTICE: Rapid deceleration can trigger an overvoltage fault. When faulted, the drive output shuts off, and the motor coasts. To avoid this uncontrolled motor state and to ensure that the motor stops quickly and safely, set an appropriate Fast-stop time to C1-09. Setting 20 to 2F: External Fault By using the External Fault function, the drive can be stopped when problems occur with external devices. To use the external fault function, set one of the multi-function digital inputs to any value between 20 to 2F. The operator will display EF where is the number of the terminal (terminal S ) to which the external fault signal is assigned.
For example, if an external fault signal is input to terminal S3, “EF3” will be displayed. Select the value to be set in H1- from a combination of any of the following three conditions: • Signal input level from peripheral devices (N.O./N.C.) • External fault detection method • Operation after external fault detection The following table shows the relationship between the conditions and the value set to H1- : Determine the terminal status for each fault, i.e., whether the terminal is normally open or normally closed. Determine whether detection for each fault should be enabled only during run or always detected. Setting 40/41:
Forward Run/Reverse Run Command for 2-Wire Sequence Sets the drive for 2-Wire sequence. When the input set to 40 is closed, the drive operates in the forward direction. When the input set for 41 is closed, the drive will operate in reverse. Closing both inputs at the same time will result in an external fault. Note: These functions are assigned to the terminals S1 and S2 when the drive is initialized for 2-Wire sequence. Drive Figure 5.19 Example Wiring Diagram for 2-Wire Sequence Setting 61/62: Speed Search 1/2 These input functions can be used to enable Speed Search.
When the Speed Search 1 input (H1- = 61) is enabled the drive will search the motor speed starting from the maximum output frequency. With Speed Search 2 input (H1- = 62) enabled the Speed Search will be performed starting from the frequency reference. Note: Operator error oPE03 will result if both Speed Search 1 and Speed Search 2 are set to the input terminals at the same time. 94 SIEP C710606 33A OYMC AC Drive – J1000 User Manual Setting Terminal Status Detection Method Stopping Method N.O. N.C.
Always Detected Detected during Run only Ramp to Stop (fault) Coast to Stop (fault) Fast-stop (fault) Alarm Only (continue running) 20 O O O 21 O O O 22 O O O 23 O O O 24 O O O 25 O O O 26 O O O 27 O O O 28 O O O 29 O O O 2A O O O 2B O O O 2C O O O 2D O O O 2E O O O 2F O O O Forward Run Reverse Run S1 S2 SC Digital Input Common