39
English (US)
Analog output (AO)
Current sourcing capability only.
Voltage signal:
• Range: 0-10 VDC.
• Minimum load between AO and GND: 1 kΩ.
• Short-circuit protection: Yes.
Current signal:
• Ranges: 0-20 and 4-20 mADC.
• Maximum load between AO and GND: 500 Ω.
• Open-circuit protection: Yes.
Tolerance: - 0/+ 4 % of full scale (max-point coverage).
Screened cable: 28-16 AWG / 0.5 - 1.5 mm
2
.
Maximum cable length: 1640 ft.
Pt100/1000 inputs (PT)
Temperature range:
• Minimum -30 °C (88 Ω/882 Ω).
• Maximum +180 °C (168 Ω/1685 Ω).
Measurement tolerance: ± 2.5 °F.
Measurement resolution: < 0.5 °F.
Automatic range detection (Pt100 or Pt1000): Yes.
Sensor fault alarm: Yes.
Screened cable: 28-16 AWG / 0.5 - 1.5 mm
2
.
Use Pt100 for short wires.
Use Pt1000 for long wires.
LiqTec sensor inputs
Use Grundfos LiqTec sensor only.
Screened cable: 28-16 AWG / 0.5 - 1.5 mm
2
.
Grundfos Digital Sensor input and output (GDS)
Use Grundfos Digital Sensor only.
Power supplies (+5 V, +24 V)
+5 V:
• Output voltage: 5 VDC - 5 %/+ 5 %.
• Maximum current: 50 mADC (sourcing only).
• Overload protection: Yes.
+24 V:
• Output voltage: 24 VDC - 5 %/+ 5 %.
• Maximum current: 60 mADC (sourcing only).
• Overload protection: Yes.
Digital outputs (relays)
Potential-free changeover contacts.
Minimum contact load when in use: 5 VDC, 10 mA.
Screened cable: 28-12 AWG / 0.5 - 2.5 mm
2
.
Maximum cable length: 1640 ft.
Bus input
Grundfos GENIbus protocol, RS-485.
Screened 3-core cable: 28-16 AWG / 0.5 - 1.5 mm
2
.
Maximum cable length: 1640 ft.
20. Other technical data
EMC (electromagnetic compatibility)
EN 61800-3.
Residential areas, unlimited distribution, corresponding to CISPR
11, class B, group 1.
Industrial areas, unlimited distribution, corresponding to CISPR
11, class A, group 1.
Contact Grundfos for further information.
Enclosure class
Standard: IP55 (IEC 34-5).
Optional: IP66 (IEC 34-5).
Insulation class
F (IEC 85).
Torques
20.1 Sound pressure level
The grey fields indicate that the motor is not yet available in this
MLE motor range, but is available in the previous MLE motor
range.
Terminal Thread size
Max. torque
[lb. ft]
L1, L2, L3, L, N M4 1.3
NC, C1, C2, NO M2.5 0.37
1 to 26 and A, Y, B M2 0.37
Motor
[kW]
Max. speed
stated on
nameplate
[min
-1
]
Speed
[min
-1
]
Sound pressure level
ISO 3743
[dB(A)]
1-phase
motors
3-phase
motors
0.25 to
0.75
2000
1500 38 38
2000 42 42
4000
3000 53 53
4000 58 58
5900
4000 58 58
5900 68 68
1.1
2000
1500
38
2000
42
4000
3000 53 53
4000 58 58
5900
4000 58 58
5900 68 68
1.5
2000
1500
2000
4000
3000 57 57
4000 64 64
5900
4000 58 58
5900 68 68
2.2
2000
1500
2000
4000
3000
57
4000
64
5900
4000
58
5900
68
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