gefran GFW 400A, Инструкция по установке и эксплуатации

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80999D_MHW_GFW 400-600A_07-2020 _ENG
Figure 45
Example of operation in BF mode with power at 50%
Parameter defines the minimum number of conduction cycles settable from 1 to 10.
In the following example, the parameter = 2.
HSC -
Half single cycle
This mode corresponds to Burst Firing that manages ON and OFF half-cycles. It is useful for reducing the flickering of
filaments with short/medium-wave IR lamp loads. With these loads, to limit operating current with low power, it is useful
to set a minimum power limit (for example Lo.P = 10%, ref "GFX4-IR operation guide").
NB.: This mode is NOT allowed with inductive loads (transformers) It is used with resistive loads in singlephase, star with
neutral, or open delta configuration.
Figure 46
Advanced single-cycle
Example of operation in HSC mode with power at 33 and 66%.
Phase angle (PA)
This mode controls power on the load via modulation of trigger angle
θ
if power to be transferred to the load is 100%,
θ
= 180°
if power to be transferred to the load is 50%,
θ
= 90°
Figure 47
Resistive load Inductive load