Siemens 7SR51 - 27 Vx Undervoltage Protection - VX; Common Settings; Undervoltage Protection

27Vx Undervoltage Protection – Vx
Common Settings
Reference
Parameter Value
V
set
UV guard setting 1 to 200 V, Δ 0.5 V
V Applied voltage (for operate time) 1.1 to 0.5 ⋅ V
set
(switched)
Operate and Reset Level
Attribute Value
V
op
Operate level V
set
: ± 2 % or ± 0.5 V (ph‑ph V)
Reset level
Undervoltage Protection
Reference
Parameter Value
V
set
Setting 5 to 200 V, Δ 0.5 V
V Applied voltage (for operate time) 1.1 to 0.5 ⋅ V
set
(switched)
Hysteresis Hysteresis 0 to 80 %, Δ 0.1 %
t
delay
Delay setting 0 to 20 s, Δ 0.01 s
20 to 100 s, Δ 0.1 s
100 to 1000 s, Δ 1 s
1000 to 10000 s, Δ 10 s
1000 to 14400 s, Δ 100 s
Operate and Reset Level
Attribute
Value
V
op
Operate level V
set
: ± 2 % or ± 0.5 V
Reset level (100 % - hysteresis) ⋅ V
op
± 1 % or ± 0.25 V
Repeatability ± 1 %
Variation IEC
60255-1
-10 °C to +55 °C ≤ 5 %
f
rated
± 5 % ≤ 5 %
Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time 0.5 ⋅ V
set
: 63 ms ± 10 ms
t
op
Operate time following delay t
basic
+ t
delay
± 1 % or ± 10 ms
Repeatability ± 1 % or ± 10 ms
Overshoot time
Disengaging time < 80 ms
10.4
10.4.1
10.4.2
Technical Data
10.4 27Vx Undervoltage Protection – Vx
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual 507
C53000-G7040-C014-1, Edition 11.2019