Toshiba TE Series Instruction Manual page 57

Basic Installation and Operation Guide
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TE Series Digital Solid State Soft Starters 18 – 1250A
F050 = Minimum Time Between Starts Lockout
Factory Setting = 0 (Disabled)
Range = 1 - 60 minutes, or 0 (Disabled)
When F050 is set to 1 through 60, the motor cannot be restarted
within the time specified after the first start. Time between starts
is calculated from the time of the first start command to the next
regardless of run time or off time.
Example:
If F050 = 15, motor will not be allowed to re-start within 15
minutes of the first start.
This function is useful as a "Short-Cycle Timer" to prevent
excessive motor wear when automatic demand control may
occasionally cycle on and off too quickly. e.g. compressors or
sump pumps.

5.6.8.a Internal Protection Features
The TE Series starter contains additional protection features that are
built-into the hardware and are factory preset. Function F051 is
provided to alter these settings via numerical preset programming.
For maximum protection, all of these features, except Phase
Rotation are turned ON as factory default and should not be changed
unless necessary for service purposes, testing or to accommodate
non-standard applications. Factory default settings are as follows:

Phase Rotation: Protection is OFF. The expected rotation sequence
is set for A-B-C.

Phase Current Loss (Running): Protection is ON. The unit trips at
<20% of unit Max amps after 3 seconds of acceleration and at full
speed.

Shorted SCR: Protection is ON. The unit will lock out if one SCR is
shorted (no voltage drop across the SCR).

Shunt Trip: Protection is ON. The unit trips if current flows in any
phase while in the OFF mode.

PTC Trip: Protection is ON. The unit will trip if the PTC Input
resistance exceeds set value (or open).

Line Phase Loss (Stopped): Protection is ON. The unit will trip if
any phase voltage is not present while the unit is not accelerating or
stopped.
F051 = Internal Protection Features
Factory Setting = 126 (all, except Phase Rotation, enabled)
Range = 1 – 127: Decimal value representing bit locations
F051 represents the decimal value for the binary setting of 8 bits
(byte) of memory. Each of the 8 bits is set to a 1 or 0 and
enables or disables the protection features depending on the
setting. By adding (enable) or subtracting (disable) the decimal
value associated with each of the protection features to the F051
total allows changes to be simply made by entering the new
value via the keypad. The Factory Default value is
F051 = 0127 (binary 01111111), which enables all features.
The decimal values for each feature are as follows: