20 | Operating Manual GW 601 | Relays
Operating current principle
The relay is activated when the tripping value is exceeded, i.e. the relay coils apply when the tripping value
is exceeded. If there is no power supply, exceeding the tripping value has no effect.
Delivery status for "Alarm 1", "Alarm 2" and "Horn" relays.
Standby current principle
The relay applies when there is no fault in the system. This relay returns to its original position (zero position)
when the tripping value is exceeded. Zero power supply therefore operates in the same way as exceeding
the tripping value.
Delivery status for Fault relay.
11 Analogue Output and Interface
11.1 Analogue output
You can read the measurements from the transmitter as a 4 … 20 mA signal via the analogue output.
The analogue output corresponds to the measuring signal from the transmitter provided it lies within the
1.5 … 22.5 mA range.
11.2 Interface
The devices can be optionally fitted with RS 485 and RS 232 interfaces. These are for service purposes
only.
Summary of Contents for GW 601
Page 28: ......
