Led Display; Grounding System; Dynamic Braking (Brake Circuit) - Kollmorgen SERVOSTAR 300 Instruction Manual

7.4 LED display

A 3-character
supply (➜ # 110). When the keys on the front panel are used, the parameter and function
numbers are shown, as well as the numbers for any errors and warnings that may occur (➜ #
112).

7.5 Grounding system

AGND
DGND - 24V-IO, digital inputs and digital outputs, optically isolated

7.6 Dynamic braking (brake circuit)

During dynamic braking with the aid of the motor, energy is fed back into the servo amplifier.
This regenerative energy is dissipated as heat in the brake resistor. The brake resistor is
switched in by the brake circuit.
The setup software can be used to adapt the brake circuit (thresholds) according to the elec-
trical supply voltage.
Our customer service can help you with the calculation of the brake power that is necessary
for your system. A
A description of the interface can be found on page (➜ # 61).
Functional description:
1. Individual amplifiers, not coupled through the DC bus link circuit (DC+, DC-)
When the energy fed back from the motor has an average or peak power that exceeds the pre-
set level for the brake power rating, then the servo amplifier generates the warning "n02 brake
power exceeded" and the brake circuit is switched off.
The next internal check of the DC bus link voltage (after a few milliseconds) detects an over-
voltage and the output stage is switched off, with the error message "Overvoltage F02" (➜ #
112).
The BTB/RTO contact (terminals X3/2,3) will be opened at the same time (➜ # 94).
2. Several servo amplifiers coupled through the DC bus link (DC+, DC-)
Using the built-in brake circuit, several amplifiers (even with different current ratings) can be
operated off a common DC bus link, without requiring any additional measures.
The combined (peak and continuous) power of all amplifiers is always available. The switch-
off on overvoltage takes place as described under 1. (above) for the amplifier that has the low-
est switch-off threshold (resulting from tolerances).
Technical data of the brake circuits dependent on the amplifiers type and the mains voltage
situation see table on the next page.
LED-Display indicates the status of the amplifier after switching on the 24 V
- analog inputs, internal analog ground, Encoder emulation, RS232, CAN
simple method is described in the "KDN".
S300 Instructions Manual | 7 Technical description
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