KEPCO KLP Series (older -1200 models) Operator Manual - Manual (Page 41)

KLP073008
3-1
SECTION 3 - OPERATION
3.1 GENERAL
This section explains how to operate the KLP Power Supply. Series KLP feature three modes of
operation:
• Local Mode: This is the default operating mode, providing full access to all programming
and readback functions via front panel displays, controls, and indicators (see PAR. 3.2).
• Digital Remote Mode (see PAR. 3.3): This mode is selected via commands transmitted
through one of the two digital ports. One port is configured for IEEE-488 (GPIB) (see
PAR. 3.5), while the other port is configured to accept commands based on RS-232 pro-
tocol (see PARs. 3.4).
• Analog Remote Mode: This mode is selected via a jumper wire at the analog program-
ming port prior to initial turn-on, and provides limited access to programming and read-
back functions (see PAR. 3.7).
3.2 LOCAL MODE OPERATION
Local operation of the KLP Power Supply is accomplished via the front panel switches and con-
trols illustrated in Figure 2-1 and described in detail in Table 2-1. Separate 4-digit LEDs display
actual output voltage and current. as well as set points and limits. Status and fault indications
are provided by a 4-character alpha-numeric display
3.2.1 TURNING THE POWER SUPPLY ON
1. To turn the power supply on, set POWER ON/OFF circuit breaker (1, Figure 2-1) to ON.
2. When the power supply is turned on, it performs a self-test and displays the following infor-
mation:
NOTE: To eliminate the display of model, virtual model, and protection levels on power-up,
refer to PAR. 3.2.11.4 for quick boot.
• status display flashes MODL for 2 seconds while DC VOLTS and DC AMPERES dis-
plays show the maximum voltage and current capability of the unit.
• status display flashes VIRT for 2 seconds while DC VOLTS and DC AMPERES dis-
plays show the maximum voltage and current allowed for a previously programmed vir-
tual model.
NOTE: To reprogram the maximum allowable voltage and/or current, refer to PAR. 3.2.5
to define a virtual model.
• Status display flashes PROT for 2 seconds while DC VOLTS and DC AMPERES dis-
plays show previously stored OVP and OCP trigger levels. NOTE: to reprogram OVP
or OVC, refer to PAR. 3.2.7.
• If an error occurs, an error code is displayed in the status display (see Table 3-1).
3. After a successful self test, the default conditions upon power up are as follows:
• Status display shows SET,