Deif SGC 120 - Mains Configuration and Monitoring; Mains Configuration Settings; Mains Voltage Monitoring

3.5.7 Mains
Configuration (MAINS CONFIG)
Parameter Range Default Description
Mains Monitoring
 
Enable
Disable
Enabled
If this parameter is enabled, the controller
monitors the mains voltage and frequency.
Mains AC System
 AC 
1 phase
3 phase
3-phase Select the phase system for the mains.
Phase Reversal
Detection
 REVERSAL

Enable
Disable
Not enabled
If this parameter is enabled, a phase reversal is
detected if the phase sequence is not 
Phase Reversal Action
 REVERSAL

None
Notification
None
Configure the action for phase reversal
detection.
Partial Healthy
Detection
 PARTIAL

Enable
Disable
Not enabled
If this parameter is enabled, a mains failure is
not detected if one or two of the phases fail.
This is only for a 3-phase system.
Mains PT Enable
 
Enable
Disable
Not enabled
Enable this parameter, if the application
includes a mains power transformer 
Mains PT Primary
 PT 
100 to 25000 100 Configure the PT primary value.
Mains PT Secondary
 PT 
100 to 700 100 Configure the PT secondary value.
Voltage Monitoring
(VOLT MONITOR)
Parameter
Range Default Description
Under-voltage
 
Enable
Disable
Yes
If this parameter is enabled, the controller
detects a mains failure when the mains voltage
is less than the under-voltage set point 
trip).
 Trip
 
50 to 298 V phase-
neutral
55 V
If the mains voltage is less than this set point,
there is a mains failure.
 Return
 
52 to 300 V phase-
neutral
57 V
The mains returns when the mains voltage is
more than this set point.
Over-voltage
 
Enable
Disable
Yes
If this parameter is enabled, the controller
detects a mains failure when the mains voltage
is more than the over-voltage set point 
trip).
 Return
 
100 to 348 V phase-
neutral
280 V
If the mains voltage is more than this set point,
there is a mains failure.
 Trip
 
102 to 350 V phase-
neutral
270 V
The mains returns when the mains voltage is
less than this set point.
 Delay 

0 to 100 s 10 s
If the voltage is more than the over-voltage set
point when this timer expires, the action for
over-voltage is activated.
User manual 4189341340A EN Page 32 of 76