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Chapter 4 – Electrical Installation
4-2
Installation and Start-up Guide for NMBP-01
X1
This is the power connector for the module with the following terminals:
•
X1:1 is for regulated 24 V d.c.
•
X1:2 is for earthing the shield of the X2 Modbus Plus network
•
X1:3 is for 0 V d.c.
X2
This is the standard Modbus Plus connector.
V3
This is the fibre link receive from the drive.
V4
This is the fibre link transmit to the drive.
Wiring
The 24 V d.c. power should be connected to the NMBP-01 using insulated
wire with 16 – 20 AWG (0.5 to 1.5 mm
2
).
24 V d.c. Power
The Modbus Plus module needs to be supplied from a stabilised
24 V d.c. auxiliary power supply. This power can be taken from the ACS 600
drive to a maximum of one option module per drive. If this auxiliary power is
already in use, the NMBP-01 must be powered from an external power sup-
ply.
The built-in auxiliary power supply on the drive is located on the standard I/O
(NIOC) card, terminal block X23 (1: +24 V d.c.; 2: 0 V). See Figure 4-2 (next
page) for details.