KB Electronics KBMK-24DF - Manual (Page 37)

37
A5. EXTERNAL FAULT
The Multi-Function Input Terminals can be used to "stop" the drive when a fault condition occurs elsewhere in
the equipment. The connection to the Multi-Function Input Terminal can be from a normally open or normally
closed relay contact or PLC. See Table 18, for drive programming. See Figure 26, for connections.
Note: For a normally open contact, program the respective Multi-Function Input Terminal to "0008". For a
normally closed contact, program the respective Multi-Function Input Terminal to "0012".
Connect the auxiliary equipment contact to any Multi-Function Input Terminal "1" – "7". Terminal "5" has been
arbitrarily chosen for External Fault. Connect the common of the circuit to any available common terminal
("8", "12", "14", "16", "18", "20", "22").
Operation: When the circuit is activated, the drive will "stop" and the display of the drive will show "EF-t". In
order to restart the drive, after the fault has been cleared, either press the Reset Key on the Keypad or use an
external contact connected to Multi-Function Input Terminal "4".
APPLICATION NOTES FOR AUTO/MANUAL START MODE (FUNCTION NO. 1.05)
After the External Fault has been Cleared:
1. If the drive is set for Manual Start Mode ("0000" (factory setting)), Manual Start with Ride-Through
("0001"), or Auto Start After Undervoltage Fault Clears ("0002"), it will have to be manually restarted after
the external fault has been cleared. Use the Reset Key on the Keypad or the external Reset Switch or
Contact to restart the drive.
2. If the drive is set for Auto Start All Faults (Except Short circuit Fault) ("0003"), it will automatically restart
after the external fault has been cleared, for the number of restart attempts set in Function No. 1.07
(factory set to 3). After which, the drive will have to be restarted using the Reset Key on the Keypad or the
external Reset Switch or Contact.
3. If the drive is set for Auto Start All Faults (Except 1 2 t, I•t, and Short Circuit Faults) ("0004"), it will
automatically restart after the external fault has been cleared.
CAUTION! External Fault is not to be used as an Emergency Stop or safety disconnect since it is
not fail-safe. Use only the AC line for this purpose.
TABLE 18
EXTERNAL FAULT PROGRAMMING
Function No. Code
7.03: Multi-Function Input Terminal 4 0009: Reset*
7.04: Multi-Function Input Terminal 5
0008: External Fault (N.O. Contact)
0012: External Fault (N.C. Contact)
*Factory setting.
FIGURE 26
EXTERNAL FAULT CONNECTIONS
*Optional.