Solcon MPS 3000, Manual

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Tripping/Alarm Individual Settings
Maximum Start Time
Fault occurs when starting time is longer then "Maximum Start Time" setting. The MPS3000 assumes end of
starting process, when motor current decreases below 110% of the "Overload Pickup" value.
For a default value of 105%, end of starting process is detected at 115% of Motor Full Load Current (FLC).
Note: The following description presents the previous mentioned five setting options (Trip, Alarm, Auto Reset,
Panel Reset, PLC Reset) available for Max Start Time. In order to keep the text brief we avoided repeating this
description for each of the remaining 51 protection functions.
Max. Start Time
Trip: DISABLE
When Enabled, if starting time exceeds "Max Start Time" setting, the MPS3000 trips. If
Output A and Output B relays are configured as contactors A & B (common setting for
MPS3000-C), then internal relays A and B will open, opening motor contactors.
If "Config. Output D" parameter is set to Trip, output D relay energizes.
If "Config. Output D" parameter is set to Trip - Fail Safe, output D relay de-energizes.
Trip condition is latched.
Range: DISABLE, ENABLE
Max. Start Time
Alarm: ENABLE
When Enabled, and in case starting time exceeds Max Start Time setting, If Config.
Output C parameter was set to Alarm Fail Safe, output C relay de-energizes. If set to
Alarm, output C relay energizes. Alarm condition is latched.
Range: DISABLE, ENABLE
Max Start Time
Auto RST: Dsabl.
When Enabled, Automatically resets Max Start Time fault after motor stops.
Range: DISABLE, ENABLE.
Max. Start Time
Panel Rst.:Enabl
When Enabled, allows Front panel resetting
Range: DISABLE, ENABLE.
Max. Start Time
PLC Reset:Enabl
When Enabled, allows PLC (Remote) resetting.
Range: DISABLE, ENABLE.
Max. Start Time
Output A.:Disabl
When Enabled, causes output A relay to energize upon Max Start Time fault.
Range: DISABLE, ENABLE.
Max. Start Time
Output B: Disabl
When Enabled, causes output B relay to energize upon Max Start Time fault.
Range: DISABLE, ENABLE.
Too Many Starts
Fault occurs when the number of starts exceeds the "Number of Starts" setting during "Starts Period" time.
Auto Reset, when Enabled, occurs after "Start Inhibit" time elapsed.
If one of the Discrete inputs A, B, C or D is configured as an Emergency Restart input and if this input (the
Emergency Switch) is closed, then all starts performed are ignored. So, Too Many Starts fault is automatically
disabled.
Note: Each output relay (A and B), can be configured as “# of Strts Pre Alrm” (Number Of Starts Pre Alarm). In
this mode the relay is energized if motor is stopped, as long as a new start would cause Too Many Starts fault.
It can be used to prevent the next start as long as it is not allowed, simply by connecting the output relay (A or
B) in series with the mains contactor.
Under Current Level 1
For a running motor, fault occurs when current decreases below "U/C Level 1" setting, for a time longer than
"U/C Level 1 Delay" setting.
Auto reset, when Enabled, occurs when current is above "U/C Level 1", or when motor stops or trips.
Under Current Level 2
For a running motor, fault occurs, when current decreases below U/C Level 2 setting for a time longer than U/C
Level 2 Delay setting.
Auto reset, when Enabled, occurs when the current increases above U/C level 2, or when the motor stops or
trips.
Load Increased
Active only after start process ended (after current decreased to below 110% of Overload Pickup value). Fault
occurs when motor average current is above "Load Increase" setting for more than 5 seconds. Auto reset, when
Enabled, occurs when current decreases to below the Load Increase setting, or when motor stops or trips.