Digital Inputs/Outputs - Grundfos TPE Installation And Operating Instructions Manual

10.7 Digital inputs
Available inputs depending on the functional module fitted in the
pump:
Function (terminal)
Digital input 1, setup
(2 and 6)
Digital input 2, setup
(1 and 9)
To set up a digital input, make the settings below.
Function
Select one of these functions:
Not active
•
When set to "Not active", the input has no function.
External stop
•
When the input is deactivated (open circuit), the pump will
stop.
Min. (min. speed)
•
When the input is activated, the pump will run at the set min.
speed.
Max. (max. speed)
•
When the input is activated, the pump will run at the set max.
speed.
External fault
•
When the input is activated, a timer will be started. If the input
is activated for more than 5 seconds, the pump will be stopped
and a fault will be indicated.
Alarm resetting
•
When the input is activated, a possible fault indication will be
reset.
Dry running
•
When this function has been selected, lack of inlet pressure or
water shortage can be detected.
When lack of inlet pressure or water shortage (dry running) is
detected, the pump will be stopped. The pump cannot restart
as long as the input is activated.
This requires the use of an accessory, such as these:
– a pressure switch installed on the suction side of the pump
– a float switch installed on the suction side of the pump.
Accumulated flow
•
When this function has been selected, the accumulated flow
can be registered. This requires the use of a flowmeter which
can give a feedback signal as a pulse per defined flow of
water.
Pulse flowmeter setup
See section
10.15.1
Predefined setpoint digit 1 (applies only to digital input 2).
•
When digital inputs are set to predefined setpoint, the pump
will operate according to a setpoint based on the combination
of the activated digital inputs.
Predefined setpoints
See section
10.13.2
The priority of the selected functions in relation to each other
appears from section
15. Priority of
always have the highest priority.
FM 200 FM 300
(standard) (advanced)
● ●
- ●
.
.
settings. A stop command will

10.8 Digital inputs/outputs

Available inputs/outputs depending on the functional module
fitted in the pump:
Function (terminal)
Digital input/output 3, setup
(10 and 16)
Digital input/output 4, setup
(11 and 18)
To set up a digital input/output, make the settings below.
Mode
The digital input/output 3 and 4 can be set to act as digital input
or digital output:
Digital input
•
Digital output.
•
Function
The digital input/output 3 and 4 can be set to these functions:
Possible functions, digital input/output 3
Function if input
• Not active
• External stop
• Min.
• Max.
• External fault
• Alarm resetting
• Dry running
• Accumulated flow
• Predefined setpoint digit 2
Possible functions, digital input/output 4
Function if input
• Not active
• External stop
• Min.
• Max.
• External fault
• Alarm resetting
• Dry running
• Accumulated flow
• Predefined setpoint digit 3
FM 200 FM 300
(standard) (advanced)
● ●
- ●
Function if output
• Not active
• Ready
• Alarm
• Operation
• Pump running
• Warning
• Limit 1 exceeded
• Limit 2 exceeded
Function if output
• Not active
• Ready
• Alarm
• Operation
• Pump running
• Warning
• Limit 1 exceeded
• Limit 2 exceeded
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