Grundfos RADIOMODULE 2G4 - Signal Relay (Relay Outputs)

Functional module
Digital input/output 3
(Terminals 10, GND)
Digital input/output 4
(Terminals 11, GND)
FM 100 (basic) • -
FM 200 (standard) • -
FM 300 (advanced) • •
You can select whether the interface is to be used as input or output. The output is an open collector. You can connect the open collector to,
for example, an external relay or a controller such as a PLC.
+ 24V
DO 3/4
1
TM070001
Pos. Description
1 External relay or controller
Mode
You can set the digital input or output 3 and 4 to act as a digital input or digital output.
Functions if the digital input or output is set to input:
• Not active
• Ext. stop
• Min.
• Max.
• User defined speed
• External fault
• Alarm resetting
• Dry running
• Accumulated flow
• Reverse rotation
• Predefined setpoint 2 (digital input/output 3)
• Predefined setpoint 3 (digital input/output 4)
• Local motor stop
• Activate output
Functions if the digital input or output is set to output:
• Not active
• Ready
• Alarm
• Operation
• Pump running
• Warning
• Limit 1 exceeded
• Limit 2 exceeded
• Digital input 1,state
• Digital input 2,state
• Digital input 3,state
• Digital input 4,state
Related information
2.7 Identification of the functional module
6.8 "Digital inputs"
6.8.1 Timer function for a digital input
6.10 "Signal relay" ("Relay outputs")
6.10
"Signal relay" ("Relay outputs")
The motor has two outputs for potential-free signals via two internal relays.
45
English (GB)