Grundfos MGE Series User Manual

English (GB)
36
10.9 "Signal relay" (""Relay outputs"")
The motor incorporates two signal relays for
potential-free signalling. See section 20. Signal
relays.
Function
You can configure the signal relays to be activated
by one of the following incidents:
• ""Not active""
• ""Ready""
The motor can be running or is ready to run and
no alarms are present.
• ""Alarm""
There is an active alarm and the motor is
stopped.
• "Operating" (""Operation"")
"Operating" equals "Running" but the motor is
still in operation when the motor is stopped.
• "Running" (""Pump running"")
The motor is running.
• ""Warning""
There is an active warning.
• ""Limit 1 exceeded""
When this function is activated, the signal relay is
activated. See section 10.15 ""Limit-exceeded
function"".
• ""Limit 2 exceeded""
When this function is activated, the signal relay is
activated. See section 10.15 ""Limit-exceeded
function"".
• "External fan control" (""Control of external fan"").
When you select this function, the relay is
activated if the internal temperature of the motor
electronics reach a preset limit value.
10.10 ""Analog output""
Whether the analog output is available or not,
depends on the functional module fitted in the motor.
See section 15. Identification of functional module.
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
minimum and maximum value.
• ""Resulting setpoint""
The reading is a percentage of the external setpoint
range.
• "Motor load"
Signal
range
"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
Sensor value
Minimum Maximum
0-10 V 0 V 10 V
0-20 mA 0 mA 20 mA
4-20 mA 4 mA 20 mA
Signal
range
"Resulting setpoint"
[%]
0 100
0-10 V 0 V 10 V
0-20 mA 0 mA 20 mA
4-20 mA 4 mA 20 mA
Signal
range
"Motor load"
[%]
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

Grundfos MGE Series Specifications

General

Brand	Grundfos
Model	MGE Series
Category	Engine
Language	English