12 Technical data
Maximum motor cable length for f
PWM
= 10 kHz
Characteristic Value
Category C2
(control cabinet installation)
l ≤ 25 m
See section 13.1 Notes concerning the safe and
EMC-compliant installation on page 235
Category C3 (industrial environment)
l ≤ 25 m
Cable capacity
C‘≤ 160 pF/m of one phase against shield or
between two lines
Derating of the cable length
See also section 13.1.4 Operation with long motor cables on page 237
Characteristic Value
f
PWM
= 12 kHz
l ≤ 21 m
f
PWM
= 16 kHz
l ≤ 15 m
Motor temperature monitoring system
Dangerous electrical voltage!
The signals for the temperature sensor "MT-" and "MT+" at the motor connector [X6]
must be connected to protective extra-low voltage (PELV) on the motor side and they
must be insulated against the motor phases.
Electronic overload protection of the motor
The servo drive has an electronic cut-out for overload protection combined with thermal
memory retention.
For an effective protection, the nominal motor current, maximum motor current and
overload time (I
2
t time) must be parameterised as described in the product manual.
Characteristic Value
Sensor type Analogue
Sensor type Silicon temperature sensor PTC/NTC,
e.g. KTY84-130 or similar
Characteristic curve Linear/non-linear, parameterisable (10 nodes)
Measuring range from 300 Ω to 20 kΩ (+-10%)
Output voltage + 3.3 V
Output current 1.7 mA max. (via 2 kΩ measuring resistor)
Internal resistance approx. 2 kΩ
Product manual BL 4000-C Page 218 of 298
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