User Manual – Rev BE AMETEK Programmable Power
MX Series 316
9.11.8 FC Option
When this option is enabled the output frequency will step ±0.25% of program
value
9.12 Option –EXTD - External Drive
The MX45 series power source system EXTD option can be used to drive the MX
amplifier outputs with a customer supplied external signal, apart from the
standard drive signal from the programmable controller. Using the EXTD allows
a quick, low cost and simple way of direct real-time control of the output of the
power supply.
Each input is optically isolated from each other and the LV supplies inside the
MX cabinet. If desired, the COM inputs for A, B and C can be tied together
when a three-phase drive signal is used
External Oscillator connector
1 A H I
0-7Vrms Phase A Input
2 ACOM
Phase A Common
3 B HI
0-7Vrms Phase B Input
4 BCOM
Phase B Common
5 C HI
0-7Vrms Phase C Input
6 CCOM
Phase C Common
The input signal level is 0 – 7.00Vrms for FS output on 300V range
The input signal level is 0 – 7.00Vrms for FS output on 150V range
If voltage, current or frequency exceeds the system specifications the internal
controller will automatically take control and shut down the output and an error
message will be generated. Short circuit and over temperature protection are
included during EXTD operation.
To enable the EXT drive option from the front panel controller, proceed as
follows:
• Go to MENU3
• Go to UTILITY
• Select VOLT/CURR CONTROL field
• Next, set ALC = OFF
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