KSB PumpDrive, Инструкция по установке и эксплуатации

Страница: 133 / 162

Message Description PumpDrive
response
Network error Network error Service required
Motor I2t Impermissible overcurrent Speed reduction
IGBT Temperatur Power electronics overtemperature Stop
Case Temperatur Impermissible heat sink temperature Stop
High Timeout Impermissible hydraulic overload (
⇨
Section 7.2.3
Page 82)
Q Low Timeout Impermissible hydraulic part load (low flow) (
⇨
Section 7.2.3
Page 82)
CAN ID Not Allo KSB local bus ID query could not be processed Service required
Q estimation The pump is operated outside the limits of the
set H/Q data points or P/Q data points, or the
data points have been entered incorrectly.
Warning only
Table 113: Warnings
Warning Possible causes Remedy
Current Limit/
Motor I2t Incorrect motor data set (
3-3-2
) Match motor data settings to motor used.
Wrong direction of rotation of the pump Change the direction of rotation of the motor via
the phase sequence.
Hydraulic overload Reduce the hydraulic load.
Pump blocked mechanically/runs sluggishly Check pump.
Motor terminal board wired incorrectly
(delta/star)
Wire motor terminal board correctly.
PumpDrive rating < motor rating or
Output current < motor current
Wrong device ordered; mount larger PumpDrive
model.
Frequency inverter carrier frequency
(3-11-1-1) set too high
Set carrier frequency to permissible range
(
⇨
Section 4.5 Page 15) .
Ambient temperature of PumpDrive > 40 °C Impermissible operating range; mind power
derating (
⇨
Section 4.5 Page 15) .
- Fluctuating DC link voltage
(1-4-1-1)
when
pump is not running
Check mains voltage quality.
Fluctuating DC link voltage (1-4-1-1) when
pump operates at rated values
Check mains voltage quality.
Incorrect motor current measurement
(1-2-1-5)
Measure current using suitable snap-on ammeter
and compare with
(1-2-1-5) .
NOTE! Approx. 10 % tolerance is permissible.
Pump runs in reverse when motor is not
supplied with current Check swing check valve.
PumpDrive output current set too low Slightly increase
(3-6-1-4)
to enable higher
PumpDrive output current.
Motor voltage output is too low at rated
load,
(1-2-1-3)
< 380 V at rated load
Check line input voltage; enter motor current at
380 V mains voltage; fit larger-sized motor.
Motor voltage too low Change V/f characteristic to Linear (
⇨
Section
7.2.6.2 Page 93) ; take nominal motor voltage
into account; check mains voltage.
Network error KSB local bus wired incorrectly (interruption,
short circuit) Re-wire properly.
Sensor connected incorrectly Connect sensor properly; check whether
(3-9-1-1)
has been enabled.
No main pump recognised in system Set ( 3-2-1-1 ) to AuxMainpump on main pump
with sensor.
Ctrl Timeout PI mode (3-9-1-1) ; sensor has not been
recognised
Connect sensor properly; check whether (3-9-1-1)
has been enabled.
Live zero monitoring in a multiple pump
system has been triggered Replace defective sensor with new one.
Advanced HMI in a multiple pump system
has failed Replace defective Advanced HMI with new one.
IGBT Temperatur Ambient temperature of PumpDrive > 40 °C Impermissible operating range; mind power
derating (
⇨
Section 4.5 Page 15) .
Internal/external fans do not work
(1-4-1-3)
> 50 °C
→
External fans must run.
Heat sink/cooling fins dirty Clean heat sink/cooling fins.
11 Trouble-shooting
PumpDrive
133 of 162