Schweitzer Engineering Laboratories SEL-2020 - SET C - Calibration Command

Date Code 20010518 Settings 6-41
SEL-2020 Instruction Manual
Table 6.18: SET G Global Settings and Definitions (continued)
Setting Comment
ZPICKUP
Prompt. Z Timer Pickup time (seconds).
Description. The range is 0.0-86400.0 seconds in 0.1 second increments.
ZDROPOUT
Prompt. Z Timer Dropout time (seconds).
Description. The range is 0.0-86400.0 seconds in 0.1 second increments.
OUT1
Prompt. Output contact 1 assignment.
Description. You enter a SEL
OGIC Control Equation definition for contact OUT1. This
setting is available only if the optional I/O board is installed.
OUT2
Prompt. Output contact 2 assignment.
Description. You enter a SEL
OGIC Control Equation definition for contact OUT2. This
setting is available only if the optional I/O board is installed.
OUT3
Prompt. Output contact 3 assignment.
Description. You enter a SEL
OGIC Control Equation definition for contact OUT3. This
setting is available only if the optional I/O board is installed.
OUT4
Prompt. Output contact 4 assignment.
Description. You enter a SEL
OGIC Control Equation definition for contact OUT4. This
setting is available only if the optional I/O board is installed.
SET C - CALIBRATION COMMAND
Use the SET C command to:
• Recalibrate the SEL-2020 internal clock frequency.
• Change the settings to VALID after replacing ROMs.
The SEL-2020 clock frequency is calibrated at the factory and normally needs no calibration. If
you must install new ROMs, check and note the clock frequency before you remove the old
ROM chips, and again after you install the new chips using the SHO C command. The example
following Table 6.19 illustrates how you change the SEL-2020 clock frequency in the unlikely
event that it is necessary. This example also illustrates how to change the settings to VALID,
which is the common step required after replacing ROMs.