KEPCO BOP-GL 1KW Operator Manual Firmware Ver.3.05 and higher - Manual (Page 72)

3-10
BOP-1K-GL 022814
3.3.8 EXTERNAL LIMITS
These limits are external analog signals which are converted within the BOP to digital signals
that program the protection channels only: current protect in voltage mode and voltage protect
in current mode. The range of each analog input signal is +1V to +10V, corresponding to a
range for clamping the output between minimum, 10% of nominal (positive and negative), to
+max/–min of nominal rating. Refer to PAR. 3.4.2 for details on implementing external limits.
Table 3-2 explains the effect that these limits have in both voltage and current mode, and refer-
ences the corresponding paragraph for changing the parameter.
3.3.9 ENABLING/DISABLING DC OUTPUT POWER
The behavior of the unit when disabled depends on the Load Type setting (see PAR. 3.5.5 and
Table 3-3 for details). There are four ways to disable the output:
1. Using Remote Shutdown pin 2 (referenced to pin 1) of the Protect Ext. port. This requires
the unit to be turned off, then on in order to restore operation (see PAR. 3.3.9.1).
2. Using Remote On-Off at pin 2 (referenced to pin 1) of the Trigger port which sets the output
to off (disabled) or on (enabled) by toggling a signal applied to the Trigger port (see PAR.
3.3.9.2)
3. Using Remote On-Off at pin 2 (referenced to pin 1) of the Trigger port to disable the output
and the digital command OUTP ON to enable the output (see PAR. 3.3.9.3).
4. Using digital commands OUTP OFF and OUTP ON to disable and enable the output (see
PAR. 3.3.9.4).
TABLE 3-3. POWER SUPPLY BEHAVIOR WHEN OUTPUT IS SET TO OFF
LOAD TYPE
SETTING
If unit was in Voltage Mode when output OFF
command issued.
If unit was in Current Mode when output OFF
command issued.
ACTIVE
• Unit remains in voltage mode.
• Voltage set to zero.
• Both ± Current Protect set to maximum.
• Both ± Voltage Limit remain at maximum. • Unit set to voltage mode.
• Voltage set to zero.
• Both ± Current Protect remain at maximum.
• Both ± Voltage Limit set to maximum.
RESISTIVE
• Unit remains in voltage mode.
• Voltage set to zero.
• Both ± Current Protect set to minimum box values.
• Both ± Voltage Limit. remain at maximum. • Unit remains in current mode.
• Current set to zero.
• Both ± Current Protect set to minimum box values.
• Both ± Voltage Limit set to maximum,
BATTERY
• Unit set to current mode.
• Current set to zero.
• Both ± Voltage Protect. remain at maximum.
• Both ± Current Limit set to maximum. • Unit remains in current mode,
• Current set to zero.
• Both ± Voltage Protect set to maximum.
• Both ± Current Limit remain at maximum.