AMETEK SLM-4 - Manual (Page 42)

GPIB/RS-232 Programming Sorensen SLM-4 Chassis
VA Limit
Purpose:
To set the upper/lower limit value of threshold power (VA).
Command Syntax:
SLM AC Modules:
LIM:VA:{HIGH|LOW}{SP}{NR2}{;|NL}
Description:
This command is to set the upper/lower limit value of threshold power (VA). When power
(VA) is lower than this lower limit value or higher than the upper limit Value, NG indicating
light will come on to indicate “NO GOOD."
Example:
LIM:VA:LOW 0.05 ; To set the lower limit value of threshold power (VA) is 0.05 VA.
LIM:VA:HIGH 250.0 ; To set the upper limit value of threshold power(VA)is 250.0 VA.
PERIOD
Purpose:
Set the Tlow/Thigh duration of dynamic load in Constant Current mode.
Command Syntax:
SLM DC, SLD Modules: PERI:{LOW|HIGH}{SP}{NR2}{NL}
Description:
The PERiod of dynamic waveform is composed by Tlow and Thigh. The PERIOD LOW and
HIGH data must include decimal point, otherwise this command will not execute.
The value for PERIOD LOW and HIGH can be programmed up to the sixth place after the
decimal point. If the period of Tlow and Thigh setting is over the maximum specification at
programmed range of load module, the maximum duration of Tlow and Thigh will be sent to
the load module.
Please verify the appropriate timer range before executing the load PERI LOW or HIGH
command, otherwise the PERI load module will adjust to fit the Tlow and Thigh ranges after
programming the PERI LOW or HIGH command. The engineering unit for PERI LOW and
HIGH is “ms."
Note:
1. There are four timer ranges in the Tlow / T high generator to produce a wide
period dynamic range, these ranges are adjusted by the load module
automatically which depends on the programmed Tlow / Thigh range.
2. Example: CHA and CHB use the same T-high and T-low controller in the SLD-
series modules.
Example:
PERI:LOW 0.125;PERI:HIGH 0.8
Set the LOW dynamic load duration to 0.125 ms, and the HIGH dynamic load duration to 0.8
ms.
RISE Time
Purpose:
RISE load current slew rate setting.
Command Syntax:
SLM DC Modules:
RISE{SP}{NR2}{NL}
4-16 M540069-01 Rev B