KSB PumpDrive - 11.2 Warnings

A B C D E F G H I Possible causes Remedy
✘ ✘ ✘ Control cable short circuit Check/replace control cable connections.
✘ ✘ Pump blocked Remove the blockage manually.
✘ ✘ ✘ Temperature of power
electronics or motor winding
too high (particularly at high
torque and low speed)
Reduce the ambient temperature by improving
ventilation.
Improve cooling by cleaning the cooling fins.
Ensure the intake opening for the motor fan is not
blocked.
Ensure that the motor fan is working properly.
Reduce the power input by changing the operating
point (system-specific).
Check the permissible load and, if necessary, use
external cooling.
✘ ✘ 24 V voltage supply
overloaded
Disconnect PumpDrive from the power supply and
eliminate the cause of the overload.
✘ Dry running of pump Check the hydraulic system and rectify the fault on
PumpDrive.
✘ ✘ ✘ ✘ Sensor (signal) fault Check sensor and sensor cable.
✘ Phase failure Check phase and reinsert fuse if required.
11.2 Warnings
Table 112: Overview of warning messages
Message Description PumpDrive
response
Current Limit Impermissible overcurrent Speed reduction
Out Freq Low Output frequency below lower limit (⇨ Section 7.2.3
Page 82)
Out Freq High Output frequency exceeds upper limit (⇨ Section 7.2.3
Page 82)
Out Curr High Output current below lower limit (⇨ Section 7.2.3
Page 82)
Out Curr High Output current exceeds upper limit (⇨ Section 7.2.3
Page 82)
Feedback Low Actual value below lower limit (⇨ Section 7.2.3
Page 82)
Feedback High Actual value exceeds upper limit (⇨ Section 7.2.3
Page 82)
Setpoint Low Setpoint below lower limit (⇨ Section 7.2.3
Page 82)
Setpoint High Setpoint exceeds upper limit (⇨ Section 7.2.3
Page 82)
Low power Power below lower limit (⇨ Section 7.2.3
Page 82)
High power Power exceeds upper limit (⇨ Section 7.2.3
Page 82)
Analog IN 1 Low Signal on analog input 1 below lower limit (⇨ Section 7.2.3
Page 82)
Analog IN 1 Hi Signal on analog input 1 exceeds upper limit (⇨ Section 7.2.3
Page 82)
Analog IN 2 Low Signal on analog input 2 below lower limit (⇨ Section 7.2.3
Page 82)
Analog IN 2 Hi Signal on analog input 2 exceeds upper limit (⇨ Section 7.2.3
Page 82)
Live Zero AI1 Broken wire detected on analog input 1 (⇨ Section 7.2.3
Page 82)
Live Zero AI2 Broken wire detected on analog input 2 (⇨ Section 7.2.3
Page 82)
Ctrl Timeout Actual value takes too long to arrive (for
actual value via field bus only)
-
No Main-pump Wiring error (multiple pump configuration
only)
Service required
11 Trouble-shooting
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PumpDrive