MPE DP SERIES II, Руководство по эксплуатации и обслуживанию

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Figure 3.23 Set external interlock
Internal control enables the start, stop, and clear keys on the front panel. External control
enables the start, stop, and clear inputs at terminals 17, 19, and 18 of connector JS1 on the rear
panel, respectively. Both internal control and external control may be enabled to allow
simultaneous control. Interlock requires a physical short between terminals 26 and 37 of
connector JS1 to enable operation. This feature is useful for process control applications when a
safety interlock is required. For wiring details, refer to Section 3.6.
Configuration commands for rotary, external program, and remote sets the reference input mode
for voltage set, current set, over voltage trip, and over current trip. Only one input mode may be
selected. Pressing enter when one of the respective LED is flashing causes that mode to selected
and disables the previously selected mode. Pressing clear when the respective LED is flashing
allows the user to exit the command sequence without change. With rotary control, voltage set
points, current set points, over voltage trip, and over current trip are set by the front panel
potentiometers. By selecting external program, all reference inputs are set with the analog inputs
at terminals 3, 22, 4, and 23 of connector JS1. See Section 3.4, for connecting external reference
inputs. By selecting remote, all reference inputs are set over the RS232, optional IEEE-488, or
optional Ethernet.
3.1.2.3 Calibration Commands
Figure 3.24 describes the calibration commands. Calibration commands allow calibration of five
digital potentiometers, display of the firmware and hardware revisions, and reset the digital
potentiometers to the factory calibration settings. All of these commands can be made when the
power supply is in either the standby or power mode state. Front panel calibration commands
are available for both the master and slave modules.
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