Single- And Three-Phase Supply - Eurotherm 637+/D6R KD6R Product Manual

Range data

1.3.5 Single- and three-phase supply

Due to the line-ripple of DC-Bus, the rate of usable output voltage is derated like follows.
This deration effects the max. reachable speed of the applied motor.
Three-phase-supply:
the unloaded output voltage will be derated to approx. 90%, maximum 85 %
Single-phase: supply: 50 – 60Hz
see following diagram:
Derating of servo drive output voltage in case of single-phase supply
Output current [Aeff]
12
10
8
6
4
2
0
0
Hints for setup:
To avoid unexpected tripping of undervoltage threshold

(EASYRIDER Windows - Software), this value should be set to default.
Required motor-terminal-voltage forspecified speed.
only drive 637+ / ..02 up to 06
20 40
Output voltage in % of unloaded condition
Approximation: (up to 3000RPM)
Ukl = 1,2 * (EMF * n / 1000) + I * (Rph + RL) [V]
Ukl required motorvoltage [V RMS]
EMF Back-EMF of motor [V RMS] / 1000 RPM
Rph resistance of motor (between terminals) [Ω]
RL line resistance of motor cable [Ω]
I motor-current [A RMS]
Product-manual Model: 637+/D6R KD6R
60 80 100
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