78
83503001 Rev G
7.7.5 Output Control Commands-cont
#
Command
Description
7
DVC?
Display Voltage and Current data. Data will be returned as a string of ASCII characters. A
comma will separate the different fields. The fields, in order, are: Measured Voltage,
Programmed Voltage, Measured Current, Programmed Current, Over Voltage Set Point and
Under Voltage Set Point.
Example: 5.9999,6.0000,010.02,010.00,7.500,0.000
8
STT?
Reads the complete power supply status.
Returns ASCII characters representing the following data, separated by commas:
MV<actual (measured) voltage>
PC<programmed (set) current>
PV<programmed (set) voltage>
SR<status register, 2-digit hex>
MC<actual (measured) current>
FR<fault register, 2-digit hex>
Example response: MV(45.201),PV(45), MC(4.3257), PC(10), SR(30), FR(00)
9
FILTER nn
Set the low pass filter frequency of the A to D Converter for Voltage and Current Measurement
where nn = 18, 23 or 46.
10
FILTER?
Returns the A to D Converter filter frequency: 18,23 or 46 Hz.
11
OUT n
Turns the output to ON or OFF. Recover from Safe-Start, OVP or FLD fault.
OUT 1 (or OUT ON)-Turn On.
OUT 0 (or OUT OFF)-Turn Off
12
OUT?
Returns the output On/Off status string.
ON - output On.
OFF - output Off.
13
FLD n
Sets the Foldback protection to ON or OFF.
FLD 1 (or FOLD ON) - Arms the Foldback protection
FLD 0 (or FOLD OFF) - Cancels the Foldback protection.
When the Foldback protection has been activated, OUT 1 command will release the protection
and re-arm it, while FLD 0 will cancel the protection.
14
FLD?
Returns the Foldback protection status string:
“ON” - Foldback is armed.
“OFF” - Foldback is cancelled.
15
FBD nn
Add (nn x 0.1) seconds to the Fold Back Delay. This delay is in addition to the standard delay.
The range of nn is 0 to 255. The value is stored in eprom at AC power down and recovered at
AC power up.
16
FBD ?
Supply returns the value of the added Fold Back Delay.
17
FBDRST
Reset the added Fold Back Delay to zero.
18
OVP n
Sets the OVP level. The OVP setting range is given in Table 7-5. The number of characters after
OVP is up to 12. The minimum setting level is approximately 105% of the Output Voltage setting,
or the value in Table 7-5, whichever is higher. The maximum OVP setting level is shown in Table
5-1. Attempting to program the OVP below this level will result in an execution error response
(“E04”). The OVP setting stays unchanged.
19
OVP?
Returns the setting “n” where “n” is the exact string in the user’s “OVP n”. When in Local mode,
returns the last setting from the front panel in a 4 digit string.
20
OVM
Sets OVP level to the maximum level. Refer to Table 7-5.
21
UVL n
Sets Under Voltage Limit. Value of “n” may be equal to PV setting, but returns “E06” if higher.
Refer to Table 7-6 for UVL programming range.
22
UVL?
Returns the setting “n” where “n” is the exact string in the user’s “UVL n”. When in Local mode,
returns the last setting from the front panel in a 4 digit string.
23
AST n
Sets the Auto-restart mode to ON or OFF.
AST 1 (or AST ON): Auto restart On.
AST 0 (or AST OFF): Auto restart Off.
24
AST?
Returns the string auto-restart mode status.
25
SAV
Saves present settings. The settings are the same as power-down last setting. These settings
are erased when the supply power is switched Off and the new “last settings” are saved.
26
RCL
Recalls last settings. Settings are from the last power-down or from the last “SAV”
command.
27
MODE?
Returns the power supply operation mode. When the power supply is On (OUT 1) it will return
“CV” or “CC”. When the power supply is OFF (OUT 0 or fault shutdown) it will return “OFF”.
28
MS?
Returns the Master/Slave setting. Master: n= 1, 2, 3, or 4 Slave: n=0
Notes:
1. In Advanced parallel mode (refer to Sec. 5.15.2), “n” is the total system current.
2. In Advanced parallel mode, “MC?” returns the Master unit current multiplied by the number
of slave units +1.
