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B.94 system:damping? query, B.95 system:error? query, B.96 system:external command – KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 4.00 to 4.xx User Manual

Page 85: B.97 system:external? query, B.98 system:fan command, B.99 system:fan? query, B.94, System:damping? query, B.95, System:error? query

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SERIES EL 071414

B-17

B.94

SYSTem:DAMPing? QUERY

SYST:DAMP?

Syntax:

Short Form: SYST:DAMP?

Long Form: SYSTem:DAMPing?

Returns x where x = integer from 0 (minimum damping) to 7 (maximum damping) (5 is maximum
damping for units with firmware version suffix B2 or lower)

Description: Inserts capacitance required to damp oscillation. Factory default setting is 7 (default is 5 for units

with firmware version suffix B2 or lower). See PAR. 3.14

B.95

SYSTem:ERRor? QUERY

SYST:ERR?

Syntax:

Short Form: SYST:ERR?

Long Form: SYSTem:ERRor?

Description: Returns next entry from the error message queue. Responds with the most recent error message

in a queue of up to 10 possible messages and clears each error message as it is sent. Issuing *CLS
clears all error messages in the queue.

Error Message

Code

Command Error Generic -100
Invalid Separator

-103

Illegal Parameter Value

-224

Invalid Unit Number

-241

Queue Overflow

-350

No Error

-0

B.96

SYSTem:EXTernal COMMAND

SYST:EXT

Syntax:

Short Form: SYST:EXT

Long Form: SYSTem:EXTernal

where OFF = disable, ON = hazardous external enable, ISOLated = isolated external enable

Description: Enables or disables external analog programming. OFF disables adjustment of the controlled

parameter using an external voltage. ON enables the hazardous external input from ± REF IN. ISOL
enables the isolated external input from pins 2 and 7 of the ANALOG CONTROL connector. Refer to
PAR. 2.6.5 for details.

B.97

SYSTem:EXTernal? QUERY

SYST:EXT?

Syntax:

Short Form: SYST:EXT?

Long Form: SYSTem:EXTernal?

Returns: OFF (disabled) or ON (hazardous external input enabled) or ISOL (isolated external input
enabled.

Description: Indicates whether external analog programming is enabled or disabled. Refer to PAR. 2.6.5 for

details.

B.98

SYSTem:FAN COMMAND

SYST:FAN

Syntax:

Short Form: SYST:FAN

Long Form: SYSTem:FAN

Where = integer, either 0 or 100

Description: SYST:FAN 0 sets fan to off. SYST:FAN 100 sets fan to on.

B.99

SYSTem:FAN? QUERY

SYST:FAN?

Syntax:

Short Form: SYST:FAN?

Long Form: SYSTem:FAN?

Returns = 0 or 100

Description: Indicates fan status: 0 = off, 100 = on.