MAIN CIRCUIT INTERFACE BOARD MAIN CIRCUIT INTERFACE BOARD ZINT-591 has been replaced with: ZINT-571 SP KIT (3AUA0000122301) used in ACS880-01 frame sizes R6, R7. AND ZINT-592 SP KIT (3AUA00000128978) used in ACS880-01 frame sizes R8, R9.
Additionally: When ZINT-591 is replaced with ZINT-592 the old ZCU-11 (3AUA0000080626) must also be replaced. Use the latest one revision.