KEB COMBIVERT P6, Инструкция по эксплуатации

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52
POWER UNIT
5.7.3 Motor temperature detection
The COMBIVERT P6 has a switchable KTY84 / PTC / Pt1000 evaluation. The input has
„basic insulation“ to the supply and to the „safely insulated voltage“ (control board volt-
age)! The desired function is set with dr33 and works according to the following table:
dr33 function of T1, T2 Resistance Display ru28
0
KTY84
(standard)
< 330 Ω Short circuit
359 Ω -40°C
1 kΩ 100°C
1.722 kΩ 200°C
> 1800 Ω Open circuit
1
PTC
(in accordance with
EN 60947-8
)
< 750 Ω PTC closed
0.75…1.65 kΩ (reset resistance) undefined
1.65…4 kΩ (tripping resistance) undefined
> 4 kΩ PTC open
4
Pt1000
(from Drive Unit Firmware
2.7.0.11 and Power Unit
Firmware 2.4.0.13)
< 330 Ω Short circuit
843 Ω -40°C
1000 Ω 0°C
1385 Ω 100°C
1759 Ω 200°C
> 1800 Ω Open circuit
Table 11: Motor temperature monitoring with PTC, KTY or Pt1000
NOTICE
faults and malfunctions !
► KTY, PTC or Pt1000 cable inside the motor cable only permissible
with double shielding !
► Do not lay KTY, PTC or Pt1000 cable of the motor (even shielded)
together with control cable !
NOTICE
No protection of the motor winding in case of wrong connection !
► Operate KTY sensors in the forward direction. Non-observance
leads to incorrect measurement in the upper temperature range.
T1
T2
+
KTY84
M
Figure 29: Connection of a KTY sensor