gefran GPC - Ammeter Input Lower Scale Limit; Ammeter Input Upper Scale Limit; Ammeter Input Offset

81901A “MSW_GPC-40/600A”_03-2021_ENG_page 23
3.8.1. Ammeter input lower scale limit
Address
Format
GPC-OP
menu
Acronym
Global / M/E1/E2
GF_eXpress menu
Attribute Retentive Type Unit of mea- surement Default
Single-
node
Multi-
node
Description
1770
746 16 bit
04.08.01
L.tA
M
MainMenu → M → Inputs → CT input →
Lt.A_1
R
Float
(####.#)
A 0.02794 04.11.01 E1
MainMenu → E1 → Inputs → CT input →
Lt.A_2
4842 04:14:01 E2
MainMenu → E2 → Inputs → CT input →
Lt.A_3
The parameter shows the lower limit of the measuring scale used for the CT ammeter input of device M or E1 or E2.
3.8.2. Ammeter input upper scale limit
Address
Format
GPC-OP
menu
Acronym
Global / M/E1/E2
GF_eXpress menu
Attribute Retentive Type Unit of mea- surement Default
Single-
node
Multi-
node
Description
1429
405 16 bit
04.08.02
H.tA
M
MainMenu → M → Inputs → CT input →
Ht.A_1
R
Float
(####.#)
A
see
table
2453 04.11.02 E1
MainMenu → E1 → Inputs → CT input →
Ht.A_2
4501 04:14:02 E2
MainMenu → E2 → Inputs → CT input →
Ht.A_3
The parameter shows the upper limit of the measuring scale used for the CT ammeter input of device M or E1 or E2. The value depends
on the current rating of the device or, in the case of an external CT, on the value of the parameter r.tA.
3.8.3. Ammeter input offset
Address
Format
GPC-OP
menu
Acronym
Global / M/E1/E2
GF_eXpress menu
Attribute Retentive Type Unit of mea- surement Default
Single-
node
Multi-
node
Description
1244
220 16 bit
04.08.03
o.tA
M
MainMenu → M → Inputs → CT input →
o.tA_1
R/W
■
Float
(####.#)
A 0.02268 04.11.03 E1
MainMenu → E1 → Inputs → CT input →
o.tA_2
4316 04:14:03 E2
MainMenu → E2 → Inputs → CT input →
o.tA_3
The parameter shows the offset applied to the value read from the CT ammeter input of device M or E1 or E2 to match the expected
value. It serves to correct a possible constant reading error.
This offset applies linearly to all readings.
min...max: -99.9...99.9