Date Code 20010719 701 Motor Protection Relay
ASCII Serial Port Operation
Command Explanations
6.19
Average and peak starting times, starting current magnitudes, thermal
capacities, and other average and peak operating values.
Learned motor cooling time (if RTDs are included) and learned
starting thermal capacity.
Trip and alarm counters, listed by type.
Section 8: Metering & Monitoring includes additional details on the motor
operating statistics report.
MOTOR R (Level 2)
Reset the motor operating statistics using the MOTOR R command. The relay
resets all the data accumulators except the learned motor parameters, which you reset
using the RLP command.
MSR (Level 1 or 2)
Use the MSR (Motor Start Report) command to view motor start reports. The
relay records a 3600-cycle report each time the motor starts. The general command
format is listed in Table 6. 9.
Table 6.9 MSR G eneral Com mand Format
See Section 8: Metering & Monitoring for information on the contents of motor
start reports.
MST (Level 1 or 2)
Use the MST (Motor Start Trend) command to review the motor start trend data.
The relay records the number of starts and average information for each of the past
eighteen 30-day periods. See Section 8: Metering & Monitoring for information on the
contents of the motor start trend data.
MST R (Level 2)
Use the MST R command to reset the data stored in the motor start trend buffers.
This should only be done at initial relay installation, for motor rewinds, or after
overhaul of the load equipment.
Table 6.9 MSR General Command Format
MSR n
Where:
n
Event number (1–5). Defaults to 1 if not listed, where 1 is
the most recent event.
MSR F
Display the format of a motor start report.
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