Azure Dynamics DMOC445, Руководство по эксплуатации, Страница: 14 / 35

Proprietary
14
DMOC445 Manual and Operating Instructions
6. General Information
1. Mechanical
The DMOC has a light-weight aluminum package which is rated IP 54. The component
cover and heatsink base are gold Iridited per MIL-C_5541-E-Class 1a for corrosion
protection. When installing the DMOC into a system, avoid locations in which the DMOC
is frequently exposed to water. Also, the DMOC is not designed to withstand pressure-
washing and needs to be protected accordingly.
In order to isolate the DMOC from vehicle vibrations and shock, it is very important that
the controller be vibration damping mounted. Please refer to the “Installation” section in
this document for further information.
Two DMOC versions exist: air-cooled and liquid cooled. For the air-cooled version, the
cooling fans are automatically turned on by the DMOC thermal management system.
The liquid cooled version required cooling mixture of water (43%) and ethylene glycol
(57%) by volume.
•
Maximum and minimum cooling pressure to apply at the inlet side is 12-10 psig,
•
Maximum and minimum cooling temperature at inlet is +55C and +40C.
•
Normal cooling flow rate is 7.5 to 10 LPM @ 1.4 and 2.5 psi, respectively.
•
The cooling chamber cover plate has been tapped to accept 1/4NPT fittings (see
figure 5).
Electrical
2. High-Voltage
Connections
All high-voltage connections are made in the terminal box which is attached to the
heatsink of the DMOC. It is imperative that appropriate safety steps are taken when
connecting or disconnecting high-voltage cables. This manual provides some
recommended safety practices, but they are not meant to be comprehensive and it is
important that only people with up to date high-voltage training install or uninstall the
DMOC. All high-voltage connections have to be assumed to be “hot” at all times,
independent of the state of the DMOC or signals reported by the DMOC.
For correct operation of the traction drive, the AC connections to the motor need to be
appropriately shielded and the connection to the terminal box must be made according to
the instructions in this document. Since the DMOC is only indented to be used with Azure
motors, the motor wiring will be “dressed-up” appropriately for connecting with the
DMOC. Do not shorten or lengthen the motor cables without duplicating the original
connection and shielding configuration.
Shock
Hazard:
Extreme caution should be used whenever
working on or near the high voltage system.