KSB Hyamat SVP Eco, Инструкция по установке и эксплуатации

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9 Trouble-shooting
55 of 68
Hyamat SVP Eco
9.2 Trouble-shooting: frequency inverter
WARNING
Improper work to remedy faults
Risk of injury!
▷ For any work performed to remedy faults, observe the relevant information
given in this instruction manual and/or in the product literature provided by the
accessories manufacturer.
If problems occur that are not described in the following table, consultation with the
KSB service is required.
A Mains fuse rating too small for the nominal mains current.
B Motor does not start.
C Motor running unevenly.
D Max. speed not reached.
E Motor running at maximum speed only.
F Motor running at minimum speed only.
G No/faulty 24 V supply.
H Wrong direction of rotation of the motor.
I Fault message/protective tripping.
Table 36: Trouble-shooting
A B C D E F G H I Possible cause Remedy
- ✘ - - - - ✘ - - No voltage Check the mains voltage; check the mains fuses.
- ✘ - - - - - - - No enable Check enable via DIGIN-EN and system start.
✘ - - - - - - - - Mains fuse rating too small for
frequency inverter input
current
Check configuration/selection of mains fuse.
- - -
✘
- - - - - No setpoint signal or setpoint
set too low / drive overloaded
and in i
2
t control mode
Check setpoint signal and operating point.
- - - - ✘ - - - - Process-related persistent
control deviation (actual value
smaller than setpoint) or no
actual value (e.g. due to
broken wire)
Check setpoint signal/actual value signal. Check
operating point. Check controller setting.
-
✘
-
-
- - - - -
✘
Permissible voltage range
undershot/exceeded Check mains voltage; supply frequency inverter with
required voltage.
- - - - - - - ✘ - Wrong direction of rotation
setting
Change the direction of rotation.
- -
✘ ✘
- - - -
✘
Frequency inverter overloaded Reduce the power input by lowering the speed;
check the motor/pump for blockages.
-
✘
- - - - - -
✘
Short circuit in control cable/
pump blocked Check/replace control cable connections. Remove the
blockage manually.