KEPCO KLN Series (750W, 1500W, 3000W), Main Contro Firmware Version 1.70 and higher - Manual (Page 55)

KLN Series 051614
3-9
3.3.4 OVP/OVC OPERATION AND RECOVERY
If the unit detects an overvoltage or overcurrent condition, the OVP or OCP indicator and the red
ALARM indicator on the front panel light, the unit starts beeping and the output is set to OFF
(output voltage and current are zero). To recover, recycle power by turning the unit off then on:
the unit powers up with output off, no beeps and OVP/OVC indicator not lit. Before turning the
output ON, either 1) programmed voltage or current must be reduced, or 2) OVP or OCP setting
must be increased; otherwise the unit will again detect OVP or OVC condition resulting in output
OFF, unit beeping and OVP or OVC indicator lit. Note that OVP and OCP can not be set to less
than the programmed value for voltage and current respectively, and voltage and current can
not be programmed to be higher than the OVP and OCP setpoint, respectively.
CAUTION: The unit may detect OVP or OCP if voltage/current is programmed very close to
the OVP/OCP limits. For this case, changing the settings as outlined above is
acceptable. However, detection of OVP/OCP normally indicates a malfunction,
either in the load, or in the KLN power supply itself, therefore the cause of the mal-
function should be determined before setting the output to ON.
3.3.5 ENABLING/DISABLING DC OUTPUT POWER
To enable the output press the OUT key on the front panel. The green LED (7, Figure 3-1) adja-
cent to the OUT key goes on to indicate the output is enabled.
If the output is enabled, press the OUT key to disable the output (the green LED goes out).
When the output is ON, only the following parameters can be changed via the front panel menu:
Output mode set (PAR. 3.3.8), Power ON mode (PAR. 3.3.9), Ramp up/down time (PAR. 3.3.10,
3.3.11)), RCL start/end settings (PAR 3.3.7), display brightness (PAR 3.3.14), audible beep
(PAR 3.3.13), interface selection (PAR 3.3.15), and RS 485 baud rate (PAR 3.3.16), address
(PAR 3.3.18) and erasing viewed error codes (PAR 3.3.50).
3.3.6 STORING POWER SUPPLY OUTPUT SETTINGS
Up to 16 memory locations can be used to store power supply settings for later use. The only
settings saved are V set and A set. Protection (OVP and OCP) values are not saved.
1. Program voltage (PAR. 3.3.2) and current (PAR. 3.3.3) settings to be stored.
2. Press SHIFT key to enter SHIFT mode (blue indicator goes on), then press RCL/STO
key to access storage function. The voltage display shows 01.
3. Rotate the encoder to change the number of the storage location. This number can not
exceed the value set for Memory Flag (see PAR. 3.3.12).
4. When the desired memory location is showing in the Voltage display, press ENTER key to
store setting programmed in step 1. Settings previously saved in that location will be over-
written.
5. Press ENTER to exit storage function.