Undervoltage And Overvoltage Detection; Table 15 Undervoltage And Overvoltage Detection - WAGO 787-3861/200-1000 Product Manual

787-3861/200-1000
State
Status 2
Status 3
Status 4
Status 5
Status 6
Status 8
Status 9
Status 10

4.3 Undervoltage and Overvoltage Detection

The product only operates in a voltage range of 18 ... 30 VDC. Switching the channel on
requires a minimum voltage of 20 VDC.
Undervoltage detection: If the voltage falls below 18 V during operation, the status LED
flashes red/yellow at 1 Hz, and the channel trips to protect the downstream load. If the
voltage returns to the nominal range (20 ... 30 VDC) within 60 seconds, the channel is
switched back on, and the status LED lights up green.
If the voltage drops below 18 VDC for more than 60 seconds, the channel is not switched
on after the voltage returns to the nominal range, and the status LED lights up red.
The product is protected against brief voltage dips that may occur in the supply network.
For this purpose, a dead time of a few milliseconds is implemented, which ensures that
the product does not trip inadvertently in such a situation.
Overvoltage detection: If the input voltage of the product rises above 30 VDC, the sta-
tus LED flashes red/yellow at 5 Hz, and the channel trips to protect the downstream load.
If the voltage returns to the nominal range, the channel is automatically switched back on,
and the status LED lights up green.
The following table refers to the
Output Status
Status 1
Status 2
Status 3
Status 4
Product manual | Version: 1.0.0
Electronic Circuit Breaker
Channel
Switched on
Switched on
Switched off
Tripped
Tripped
Tripped
Tripped
Tripped
8 Conditions [} 18]
Product Behavior in the Event of
Undervoltage Overvoltage
Status 8 Status 9
Status 8 Status 9
Status 7 Status 9
Status 8 Status 9
LED State Explanation
Green, flashing (1 Hz) Load current > 90 % of
nominal current
Green, flashing (5 Hz) Load current > 100 % of
nominal current
Red Channel switched off man-
ually or through control in-
put S1.
Red, flashing (1 Hz) Wait for temperature to re-
turn to normal.
Yellow, flashing (1 Hz) Temperature returned to
normal. Channel can be
switched back on.
Red/yellow (1 Hz) Undervoltage
Red/yellow (5 Hz) Overvoltage
Red/yellow/green, one af- Product error; wiring error;
ter the other (1 Hz) feedback voltage
from the status table.
Table 15: Undervoltage and Overvoltage Detection
Product Behavior When Voltage Returns
to Normal
Undervoltage
Status 1, 2 or 3 (de-
pending on load cur-
rent)
Status 1, 2 or 3 (de-
pending on load cur-
rent)
Status 7
Status 4
Functions
Overvoltage
Status 1, 2 or 3 (de-
pending on load cur-
rent)
Status 1, 2 or 3 (de-
pending on load cur-
rent)
Status 1, 2 or 3 (de-
pending on load cur-
rent)
Status 4
19