Grundfos Hydro Multi-E Series Installation And Operating Instructions Manual page 43

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).
2
Screened cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
Pt100/1000 inputs (PT)
Temperature range:
Minimum -30 °C (88/882 Ω).
•
Maximum +180 °C (168/1685 Ω).
•
Measurement tolerance: ± 1.5 °C.
Measurement resolution: Less than 0.3 °C.
Automatic range detection (Pt100 or Pt1000): Yes.
Sensor fault alarm: Yes.
2
Screened cable: 0.5 - 1.5 mm
Use Pt100 for short wires.
Use Pt1000 for long wires.
LiqTec sensor inputs
Use Grundfos LiqTec sensor only.
2
Screened cable: 0.5 - 1.5 mm
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.
2
Screened cable: 0.5 - 2.5 mm
Maximum cable length: 500 m.
Bus input
Grundfos GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
/ 28-16 AWG.
/ 28-16 AWG.
/ 28-16 AWG.
/ 28-12 AWG.
2
/ 28-16 AWG.
43