gefran GPC - Transformation Ratio for External CT Input; Instantaneous Ammeter Input Value; Filtered Ammeter Input Value; Peak Ammeter Input Value

81901 “MSW_GPC-40/600A”_03-2021_ENG_page 24
3.8.4. Transformation ratio for external CT input
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
1417
393 16 bit
04.08.05
r.tA
M
MainMenu → M → Inputs → CT input →
r.tA_1
R/W
■
Unsigned
Short
2002441 04.11.05 E1
MainMenu → E1 → Inputs → CT input →
r.tA_2
4489 04:14:05 E2
MainMenu → E2 → Inputs → CT input →
r.tA_3
The parameter sets the transformation ratio for the external CT input of device M or E1 or E2. External current transformers of up to
3275.0 A can be used on the secondary circuit, equivalent to 5.0 A (full scale) x 655 (max. transformation ratio).
min...max: 1...655
Example: You have a 1000 A : 5 A external transformer. The transformation ratio to be set in parameter r.tA is therefore 1000/5 = 200.
3.8.5. Instantaneous ammeter input value
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
1163
139 16 bit I.tA
M
MainMenu → M → Status → I.tA_1
R
Float
(####.#)
A2187 E1
MainMenu → E1 → Status → I.tA_2
4235 E2
MainMenu → E2 → Status → I.tA_3
The parameter shows the instantaneous input read from the ammeter input of device M or E1 or E2.
3.8.6. Filtered ammeter input value
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
1492
468 16 bit
04.02.01
I.on
M
MainMenu → M → Status → I.on_1
R
Float
(####.#)
A2516 04.03.01 E1
MainMenu → E1 → Status → I.on_2
4564 04.04.01 E2
MainMenu → E2 → Status → I.on_3
The parameter shows the input read by the ammeter input of device M or E1 or E2 when the output is activated.
3.8.7. Peak ammeter input value
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
1733
709 16 bit I.tAP
M
MainMenu → M → Status → I.tAP_1
R
Float
(####.#)
A2757 E1
MainMenu → E1 → Status → I.tAP_2
4805 E2
MainMenu → E2 → Status → I.tAP_3
The parameter shows the peak input value read by the ammeter input of device M or E1 or E2 during the phase softstart ramp.