Danfoss TT400 Series User Manual

Page 96 of 108
M-AP-001-EN Rev. N
M-AP-001-EN Rev. N
Installation
Figure 20-5 - Motor-Cooling
Connection and Access Port
Motor Cooling
Inlet
Schrader
Valves
20.6 Control Wiring
20.6.1 Control Wiring
Connections
The compressor I/O Board enables communication of control and status signals between
the compressor controller and external equipment. These signals include, among others,
cooling demand, input, stepper motor control inputs and outputs, alarm and interlock
contacts, and Modbus protocol communications.
Figure 16-7 shows the control wiring connections to the compressor I/O Board. Table 16-1
Control Wiring Details provides details for the module terminal connections.
The interface cable connects the compressor to the compressor I/O board. To connect the
cable:
1. Plug the cable connector into connector J6 on the compressor I/O board.
• For RS-485 communication, the total length of the interface cable and control
wiring can be extended up to 100 meters (328 feet) (see Figure 16-8). If the
compressor is going to be monitored over an RS-232 line, the total cable length
between the compressor and the PC should not exceed 15 meters (50 feet). See
Section 4.2.
• • • CAUTION • • •
Incorrect wiring of the terminals can severely damage the module and other components.

Danfoss TT400 Series Specifications

General

Brand	Danfoss
Model	TT400 Series
Category	Compressor
Language	English