TDK Lambda | Z+Low Voltage User Manual

1.2.4 Multiple Output Power System The Z + Series power supplies series can be configured into a programmable power system of up to 31 units using the built-in USB or RS232/RS485 communication port in the power supply and the RS485 linking cable provided with each power supply. In a LAN system, each power supply can be controlled using the optional LAN controller (factory installed). In an IEEE system, eachpower supply canbe controlledusing the optional IEEE controller (factory installed).

1.2.5 Control via the USB or RS232/485 Communication Ports The following parameters can be programmed via the serial communication port:

• Output voltage setting. • Output current setting.

• Output voltage measurement. • Output current measurement. • Output on/off control. • Foldback protection setting.

• Over-voltage protection setting and readback. • Under-Voltage protection setting and readback. • Under-Voltage limit setting and read back. • Power-supply start up mode (last setting or safe mode).

1.2.6 Analog Voltage Programming and Monitoring Analog inputs and outputs are provided at the rear panel for analog control of the power supply. The output voltage and the current limit can be programmed by analog voltage or by resistor, and can be monitored by analog voltage. The power supply output can be remotely set to On or Off and analog signals monitor the proper operation of the power supply and the mode of operation (CV/CC). 1.2.7 Parallel Operation Up to six Z + Series power supplies of the same output voltage and current rating can be paralleled in master-slave configuration with automatic current sharing to increase available power. 1.2.8 Output Connections Output connections are made to rear panel bus-bars. Either the positive or negative terminal may be grounded or the output may be floated. The power supplies shall not float outputs more than +/- 100VDC above / below chassis ground. Contact factory for assistance with higher float voltage applications. Local or remote sense may be used. In remote sense, the voltage drop on the load wires should be minimized. Refer to the specifications for the maximum voltage drop value. 1.2.9 Cooling and Mechanical Construction The Z + Series is cooled by an internal fan. At installation, care must be taken to allow free air flow into the power supply via the front panel, and out of the power supply via the rear panel. The Z + Series power supply is a compact and lightweight unit which allows for easy installation and gives a space saving solution for customer applications.

14