Baldor 15H, Inverter Control manual Protection, Miscellaneous, Manual, Automatic

	Table 4-2	Parameter Block Definitions Level 2		Continued
Block Title	Parameter		Description
PROTECTION	External Trip		OFF - External Trip is Disabled. (Ignores J4-16 switched input).
			ON - External Trip is enabled. If a normally closed contact at J4-16 (to J4-17) is
			opened, an External Trip fault will occur and cause the drive to shut down.
	Local Enable INP		OFF - Local Enable input is Disabled. (Ignores J4-8 switched input).
			ON - A normally closed contact at J4-8 (to J4-17) is required to ENABLE the control
			when operating in the Keypad mode.
	I2T Response		Fault– The drive has the normal one minute and three second overload faults.
			Current Limit then Hold– Once triggered, frequency is ramped up or down until 103%
			current, minimum or maximum frequency is attained. 103% has the effect of keeping
			the I2T timer from integrating back up to 100%. If a frequency limit is reached before
			the current limit, the drive will fault with a three second or one–minute overload fault.
			If 103% current is attained, it is sustained until the overload condition is removed or a
			new speed command is requested. The overload timer will then increment back up to
			100% at which point the drive attempts to acquire reference speed. This prevents the
			drive from limit cycling between 103% load and peak load.
			Current Limit then Retry– Once triggered, frequency is ramped up or down until 80%
			current, minimum or maximum frequency is attained. If a frequency limit is reached
			before current limit, the drive will fault with an overload fault. If 80% current is
			attained, it is sustained until the overload timer reaches 100% at which point the drive
			attempts to acquire reference speed. This allows the drive to limit cycle between 80%
			load and peak load.
	I2T Trigger		Sets the trigger level for I2T current limiting.	If I2T Response is set to FAULT, I2T Trigger
			is ignored. I2T overload faults will occur normally as needed. If I2T Response is set to
			CURRENT LIMIT AND HOLD or CURRENT LIMIT AND RETRY, it sets the trigger
			level for current limiting to 100% or 80% of full load respectively. The load timeout
			indicator is monitored and when percent time remaining equals the percentage set in
			this parameter, current limiting begins.
	Peak CUR Limit		Sets the peak current time limit. Peak current operation is allowed from start–up until the
			timer expires. After timing out, full load current is imposed until the drive is stopped.
			Timer reset occurs when the drive is disabled, faulted or stopped and the output
			frequency is zero.
	Foldback Gain		Frequency Fold Back Gain – The maximum rate of change in frequency during current
			limit. This is useful for applications that have 4:1 or more load to motor inertia ratio or
			that have dramatic load vs. speed relationships such as: Load (f) = K* freq2
MISCELLANEOUS	Restart Auto/Man		Manual
			Power Up Start – If set to MAN and a run command (enable line & FWD or REV
			command) is present at power up, the motor will not run. The run command must be
			removed then reapplied to start operation. The run command refers to the enable
			plus direction (FWD or REV) lines.
			Restart after Fault – If a fault occurs during operation, the control must be reset and
			the run command must be removed then reapplied to start operation.
			 Note: If Restart Fault/Hr. is zero, the control must be manually reset. If
			Restart Fault/Hr. is non–zero, the control will automatically attempt to reset
			the fault but will not restart until the run command is removed then
			reapplied to start operation.
			Automatic
			Power Up Start – If set to AUTO and a run command (enable line & FWD or REV
			command) is present at power up, the control will automatically start.
			Restart after Fault – If a fault occurs during operation, the control will automatically
			reset (after the restart delay time) to resume operation if the Fault/Hr is set to a non
			zero value.
			3 Wire modes, AUTO start after a fault or loss of power will not occur because the
			momentary contacts are open and the run command must again be applied. The run
			command refers to the enable plus direction (FWD or REV) lines.
	Restart Fault/Hr		The maximum number of automatic restart attempts before requiring a manual restart.
			After one hour without reaching the maximum number of faults or if power is turned
			off and on again, the fault count is rest to zero.
	Restart Delay		The amount of time allowed after a fault condition for an automatic restart to occur.
			Useful to allow sufficient time to clear a fault condition before restart is attempted.
	Language Select		Selects English or other language characters for keypad display.

MN715 Programming & Operation 4-19