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

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