Bitzer ACP Link - 7 Electrical Connection; ACP LINK Panel

16 CT-600-2
7 Electrical connection
The complete electrical installation of the electronic modules on the ACP unit itself is wired and configured
from the factory before delivery. The connections that must be made by the customer are described in the
terminal plans in the sub sections below. A separate section () describes the wiring of the serial bus
(Modbus RTU).
7.1 ACP LINK panel
The wiring to the ACP unit is prepared from the factory. If the ACP LINK panel is supplied loose, then this part
must be connected after placement of the ACP unit and the panel (see also section 6.2). The wires to/from the
ACP unit are packed together on the unit and come with numbered connectors, which correspond to the
terminals in the ACP LINK panel. These must be connected first, before making the other connections to and
from the plant. When all wiring is finished, the cable grommet can be mounted. The grommet (fitted to the
bottom of the panel) can be fully disassembled, so it can be mounted after the wiring is done. If any grommet
bores are unused, be sure to plug them.
The terminal plan for connection of the ACP LINK panel can be seen below. The terminal plan layout
corresponds to the placement of the connectors, primarily in the bottom of the panel. Greyed out boxes are to
be disregarded by the customer, since they are internally connected.
NOTICE
Compressor high pressure safety chain (X8.0/1/2.5) is a fail-safe signal from each compressor module,
available for further use by the customer. It is hardwired to the high pressure safety switch on each
compressor and a high signal equals a healthy safety switch. See also ST-150 for more information on
connection of the high pressure switch to the CM-SW module.
Compressor start signal to customer (X8.0/1/2.6) is the start request for each compressor, from the
control panel to the customer electrical panel. A high signal requests the corresponding motor/VSD to start.
The control system will receive feedback for running status from the phase surveillance on the CM-SW
module, which is connected to the additional motor box.
The power supply for each compressor is made individually to ensure reasonable fuses sizing, and to ensure
that no over voltage can occur in the event of wire break on neutral wire.
NOTICE
The power supply for each compressor is made individually to ensure reasonable fuse sizing, and to
ensure that no over voltage can occur in the event of wire break on neutral wire. The minimum fuse
rating of the power supplies shall be higher than the breakers and fuses inside the ACP LINK panel to
ensure selectivity.
!
!
!
!