American Power Conversion VS 50 - Manual (Page 30)

Magnum VS –48 Vdc User Manual Page 30
5 Operation
5.1. Description
The Magnum VS is designed for years of operation with no user input. The power system is pre-programmed at
the factory with all parameters needed for normal operation. The front panel LEDs and the alarm output relays,
indicate the general health of the unit.
5.2. Controller Module Jumpers
System Voltage J5
The positioning of jumpers on header J5 will determine the operating voltage of the controller card operates.
Options include –48 V, +24 V, +48 V, or –24 V systems. The Magnum VS is only a –48 V system. The only setting
allowed is the –48 V setting, which is J5-1 jumpered to J5-6 and J5-2 jumpered to J5-7.
Remote Lockout J8
It is possible to make parameter changes to the controller card through the RS232 port or through the 10/100 Base
T port of the network management card. The controller card is shipped with a jumper between pins J8-2 and J8-3,
allowing such parameter changes. If the user wishes to disable the remote configuration feature, then the jumper is
moved to pins J8-1 and J8-2.
Firmware Programming Enable J9
When the operating system is initially installed at the factory, J9-1 is jumpered to J9-2. This setting interferes with
normal operation. To ensure normal operation, the controller card is shipped without this jumper. During normal
operation, the only setting allowed is no jumper between J9-1 and J9-2.
Vtrim Trip Select J13
The header J13 is a factory set header that allows this controller to work with different types of rectifiers. The
Magnum VS always uses the Magnum VS rectifier. During normal operation, the only setting allowed is J13-2
jumpered to J13-3.