Table of Contents
Advertisement
TE Series
5.6.9.a (continued) Function 51: Internal Protection Features
Fault
Bit
Protection
Display
#
Function
Code
Phase
rtd
0
Rotation
*
Trip
Expected
1
ABC
Phase
Sequence
Phase
PLa or
2
Current
PLc*
Loss
Shorted
3
SS*
SCR
Shunt
4
ST*
Trip
PTC Input
5
PTc*
Trip
PLd or
Line Phase
6
n3Ph
Loss Trip
7
---
Reserved
* = Operating Mode designation. See Fault Code List for description.
Table 5.6.9.a: Function 51 table of Hardware Protection Features
NOTE:
To restore all settings back to the factory default, enter a value of
127. If you see a numeric value other than the default value of 127,
one or more features has already been altered. If you do not know
which one or ones are changed, the simplest thing to do is
determine what combination of settings you want now, and subtract
from 127 then enter that number to accomplish it.
Example: F051 reads a numeric value of 109, meaning that something
has been changed, but you don't know what. By subtracting 109
from 127, you have a value of 18 remaining, and since 18 does not
represent a single bit, it means that some combination has been
used. Subtract the largest represented bit, i.e. bit #4 (value of 16),
which leaves a value of 2, representing bit #1. So in this example,
the Shunt Trip feature had been turned off, and the Expected Phase
Sequence had been changed to A-C-B.
If you do not wish to bother with what the previous settings were,
simply decide which features you now want to be turned on and
come up with a new numeric value to enter. For instance if you want
all features on, but you need phase rotation to be A-C-B (bit #1),
then simple subtract a value of 2 from 127, and enter 125 into F051.
Digital Solid State Soft Starters 18 – 1250A
Description
Phase Rotation protection.
Phase rotation must match selection in Bit #2
below. Setting to Off (0) will make the TE
insensitive for use behind a reversing contactor
2 = A-B-C Phase Rotation Sequence Only
0 = A-C-B Phase Rotation Sequence Only
Phase Current Loss, any phase current reading is
less than 20% of unit max amp rating after 3
seconds from Start command.
At least one SCR has shorted; there is no voltage
drop across the SCR phase assembly.
Shunt Trip of the main Circuit Breaker or Isolation
Contactor (if provided and wired to an Aux. relay
in F060-F061)). 2 or more SCRs have shorted in
opposing phases so current was flowing to the
motor while the TE was in the Off state.
PTC Trip function. This can be disabled so that a
jumper is not required across the PTC inputs.
Protection against loss of input line voltage.
Disable when using an In-Line Isolation Contactor
or any other system that normally removes line
power from the starter. Resets automatically when
line voltage returns.
Reserved for factory use
53
Default
Decimal
Bit
Value
Setting
1 (On)
1
1
(A-B-C
2
Rotation)
1 (On)
4
1 (On)
8
1 (On)
16
1 (On)
32
1 (On)
64
0 (Off)
128
Hide quick links:
Advertisement
Table of Contents
