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13.5 "Signal relays" 1 and 2 ("Relay outputs")
The pump incorporates two signal relays for potential-free
signalling. For further information, see section 18. Signal relays.
Function
You can configure the signal relays to be activated by one of the
following incidents:
• "Not active".
• "Ready".
The pump can be running or is ready to run and no alarms are
present.
•"Alarm".
There is an active alarm and the pump is stopped.
• "Operating" ("Operation").
"Operating" equals "Running" but the pump is still in operation
when the pump is stopped due to low flow. See section
"Low-flow detection" on page 21.
• "Running" (Pump running).
The pump is running.
• "Warning".
There is an active warning.
• "Limit 1 exceeded"
When this function is activated, the signal relay is activated.
See section 12.8 Limit-exceeded function.
• "Limit 2 exceeded".
When this function is activated, the signal relay is activated.
See section 12.8 Limit-exceeded function.
• "External fan control" ("Control of external fan").
When you select "External fan control", the relay is activated if
the internal temperature of the motor electronics reach a
preset limit value.
Factory setting
See section 29. Factory settings.
13.6 "Analog output"
The analog output enables the reading of certain operating data
to external control systems.
To set the analog output, make the settings below.
Output signal
• "0-10 V"
• "0-20 mA"
• "4-20 mA".
Function of analog output
• "Actual speed"
The reading is a percentage of the rated speed.
• "Actual value"
The reading is a percentage of the range between the minimum
and maximum value.
• "Resulting setpoint"
The reading is a percentage of the external setpoint range.
• "Motor load"
The reading is a percentage of the range between 0 and 200 % of
the maximum permissible load at the actual speed.
• "Motor current"
The reading is a percentage of the range between 0 % and 200 %
of the rated current.
• "Limit 1 exceeded" and "Limit 2 exceeded"
This function is typically used for monitoring of secondary
parameters in the system. If the limit is exceeded, an output, a
warning or an alarm is activated.
• "Flow rate"
The reading is a percentage of the range between 0 and 200 % of
the nominal flow.
Factory setting
See section 29. Factory settings.
Signal range
[V, mA]
"Actual speed"
[%]
0 100 200
"0-10 V" 0 V 5 V 10 V
"0-20 mA" 0 mA 10 mA 20 mA
"4-20 mA" 4 mA 12 mA 20 mA
Signal range
[V, mA]
"Actual value"
Sensor
min
Sensor
max
"0-10 V" 0 V 10 V
"0-20 mA" 0 mA 20 mA
"4-20 mA" 4 mA 20 mA
Signal range
[V, mA]
"Resulting setpoint"
[%]
0100
"0-10 V" 0 V 10 V
"0-20 mA" 0 mA 20 mA
"4-20 mA" 4 mA 20 mA
Signal range
[V, mA]
"Motor load"
[%]
0100
"0-10 V" 0 V 10 V
"0-20 mA" 0 mA 20 mA
"4-20 mA" 4 mA 20 mA
Signal range
[V, mA]
"Motor current"
[%]
0 100 200
"0-10 V" 0 V 5 V 10 V
"0-20 mA" 0 mA 10 mA 20 mA
"4-20 mA" 4 mA 12 mA 20 mA
Signal range
[V, mA]
"Limit-exceeded function"
Output not
active
Output active
"0-10 V" 0 V 10 V
"0-20 mA" 0 mA 20 mA
"4-20 mA" 4 mA 20 mA
Signal range
[V, mA]
"Flow rate"
[%]
0 100 200
"0-10 V" 0 V 5 V 10 V
"0-20 mA" 0 mA 10 mA 20 mA
"4-20 mA" 4 mA 12 mA 20 mA
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