3-38 BOP HIPWR 1113153.4 ANALOG REMOTE MODE PROGRAMMINGThe BOP can be programmed remotely using analog signals applied to the remote Analog I/Oport at the rear panel (see Figure 2-1 and Table 2-10). Analog remote programming allows theuser to 1) establish voltage or current mode (PAR. 3.4.2), 2) control the main channel using theBOP as a power amplifier (PAR. 3.4.3) and 3) establish the protection limits (PAR. 3.4.4). Anoutput signal proportional to output current is also provided for external use (PAR. 3.4.5).Analog mode may be configured remotely using either VOLT:MODE EXT (PAR. B.95) orCURR:MODE EXT (PAR. B.27) to enable the external reference in both voltage and currentmode. Digital programming may be restored remotely by sending either VOLT:MODE FIX (PAR.B.95) or CURR:MODE FIX (PAR. B.27).3.4.1 REMOTE OUTPUT OFFThere are two ways two turn off the output using remote signals: (1) Remote Shutdown whichrequires the unit to be turned off, then on in order to restore operation and (2) Remote Standbywhich sets the output to OFF, putting the unit in STANDBY status.3.4.1.1 REMOTE SHUTDOWNA standalone unit can be shut down using a remote signal applied to the PROTECTION EXT.PORT as shown in Figure 3-12 or 3-13. A multiple unit configuration (parallel, series or series-parallel) can be disabled by applying a remote signal to the master PAR/SER PROTECTIONPORT as shown in Figure 3-12 or 3-14. When the signal is momentarily active (minimum 100S ), power transfer between input and output is stopped (both input and output internal modulesare shut off). This condition is latched and requires the unit to be turned off, then on again torestore normal operation.FIGURE 3-12. REMOTE SHUTDOWN USING EXTERNAL POWER, STANDALONE OR MULTIPLE UNITSEntry not Empty, Use F1 to change. @ pressed while a previously saved waveform was highlighted. Use ! to modify orhighlight Empty and press @ for a new waveform.Under Minimum allowed value Frequency or period was too small.Frequency has no sign +/- key is not functional when modifying frequency.Use F5 to stop waveform. $ not valid when waveform already executing.TABLE 3-14. ERROR MESSAGE EXPLANATIONS (CONTINUED)ERROR MESSAGE EXPLANATION