Chapter 5 – Maintenance
5-2 ACS/ACC/ACP 601 Frequency Converters
Capacitor failure is usually followed by a mains fuse failure or a Fault
trip. Contact ABB if capacitor failure is suspected. Replacements are
available from ABB. Do not attempt operation with other than ABB
specified spare parts.
Reforming
Reform (re-age) spare part capacitors once a year according to
ACS 600 Capacitor Reforming Guide
(code: 64059629).
Control Panel
Connection
The Control Panel is connected to telephone connector X19 on NAMC-
11 board. The telephone connectors on NIOC board are not intended
for Panel use (they are used by Standard Modbus Link).
LEDs
The table below shows the indications of the LEDs on the control
boards.
Control Board LED When the LED is lit
NAMC Green V4 The power supply of the board is OK.
Red V18 Fault
Red V5 (not in
use)
–
NINT Green V14 The board is powered.
NIOC Green V5 The power supply of the board is OK.
Red V6 Fault
NPOW Green V4 The board is powered.
NDCO-0x
(Component Side Down)
NAMC-11
X2 X1
V11V12V15V16
CH3 CH2 CH1 CH0 BRCINT
Spacer Spacer
X19
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