Control Panel Connection (Acx 6X7); Control Panel In Remote Use (Acx 6X7); Pulse Encoder Installation - ABB ACA 6 Series Hardware Manual

Control Panel
Connection (ACx 6x7)
CH3
X3*
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* with NAMC-51 for optional Memory Backup board (NMBO)
Control Panel in
Remote Use (ACx 6x7)
NAMC-03/04 board
NIOC
X28
Pulse Encoder
Installation
ACA 6xx Sections and ACS/ACC 6x7 (132 to 3000 kW) Frequency Converters
The Control Panel is connected to modular jack X19 on NAMC-11/51
board. The modular jacks on NIOC board are not intended for Panel
use (they are used by Standard Modbus Link).
CH2
CH1
V16 V15
Connect the Control Panel cable to terminal X19 of the NAMC-11/51,
or with NAMC-03 board to terminal X28 of the NIOC board.
Earth the cable
screen at the near
earthing screw.
See NIOB-01 User's Guide (EN code 64471341) or Pulse Encoder
Interface Module NTAC-0x Installation and Start-up Guide (EN code
58919730) for the pulse encoder insulation reguirements and
connections.
The pulse encoder shall be insulated from the motor stator or rotor in
order to prevent currents from finding their way out from the drive shaft
through the encoder with resulting damage to the bearings in both the
motor and the encoder.
CH0 INT BRC
X1
V12 V11
NAMC-11/51 board
NAMC-11/51 with NDCO
X19
Chapter 3 – Electrical Installation
NDCO-0x
(Component Side Down)
Spacer
X19
NAMC-11/55
Panel cable with screened
connectors (metal enclosure)
NAMC-11/55
X19
3-37