ABB RELION 620 Series Technical Manual page 984

Section 8
Measurement functions
8.3.6
978
connected to input 1 (AI_VAL1) of the X130 (RTD) card. The tap changer operating
range from the minimum to maximum turns of the tap and a corresponding mA signal
for the tap position are set in XRGGIO130. Since the values of the XRGGIO130
outputs are floating point numbers, the float to integer (T_F32_INT8) conversion is
needed before the tap position information can be fed to TPOSYLTC. When there is
a wired connection to the TAP_POS connector, the validated tap changer position is
presented in the TAP_POS output that is connected to other functions, for example,
OLATCC1. When there is no wired connection to the TAP_POS connector, the binary
inputs are expected to be used for the tap changer position information.
GUID-37AF8128-34E7-4614-88D8-6DBC5C3A8DC1 V1 EN
Figure 503: RTD/analog input configuration example
Signals
Table 955: TPOSYLTC Input signals
Name Type
BI0 BOOLEAN
BI1 BOOLEAN
BI2 BOOLEAN
BI3 BOOLEAN
BI4 BOOLEAN
BI5 BOOLEAN
SIGN_BIT BOOLEAN
END_POS_R BOOLEAN
END_POS_L BOOLEAN
TAP_POS INT8
Table 956: TPOSYLTC Output signals
Name Type
TAP_POS INT8
Default Description
0=False Binary input 1
0=False Binary input 2
0=False Binary input 3
0=False Binary input 4
0=False Binary input 5
0=False Binary input 6
0=False Binary input sign bit
0=False End position raise or highest allowed tap position
reached
0=False End position lower or lowest allowed tap position
reached
0 Tap position indication
Description
Tap position indication
1MRS757644 F
620 series
Technical Manual