Operation and setting
42
VME420_D00026_03_M_XXDE/04.2019
Response value: undervoltage (< U): 0.85 U
n
5.7 Commissioning
Prior to commissioning, check proper connection of the voltage monitor.
Hysteresis U
Underfrequency < Hz
Overfrequency > Hz
Hysteresis frequency (Hys Hz)
Frequency alarm <U_Hz
Fault memory M
Operating principle K1 (> U)
Operating principle K2 (< U)
AL1/AL2 indicate the alarm state of
K1/K2 (LEd)
Alarm to K1/K2 (S.AL) when the device
is started
Start-up delay
Response delay
Delay on release
Password
5 %
Off
Off
0.2 Hz
on
ON
N/O operation-(n.o.)
N/C operation (n.c.)
Off
Off
t = 0 s
t
on1
= 0 s,
t
on2
= 0 s
t
off
= 0.5 s
0, Off
After connecting a brand-new VME420 to a standard system
of U
n
= 230 V 50 Hz, the response values are automatically set
by the internal preset function:
Overvoltage = 253 V (230 V + 10 %) (50 Hz + 1 Hz)
Undervoltage = 196 V (230 V - 15 %) (50 Hz - 1 Hz)
Other operating ranges of the preset function are given in the
technical data "response values" and in the description of the
function.