Power Supply And Control For Fcr Brake Motors; Example Of Supplying 2 Motors With Or Without Brake In Parallel With A Single Varmeca - Leroy Somer VARMECA 30 Installation Et Maintenance

LEROY-SOMER
3.6 - Power supply and control for
FCR brake motors
3.6.1 - Power supply for the built-in
sequential control brake (ESFR VMA option)
- the brake is supplied via the rectifier and a solid state relay
fixed on the esFR Vma connection card. this connection is
made at the factory.
- the rectifier is supplied by two mains phases.
- the brake is controlled according to a sequence which can be
adjusted using the VaRmeca parameters.
Sequential brake control with ESFR option
0.37
0.39 0.40
0.41 0.42
3.6.2 - Separate power supply
the brake is supplied and controlled by an external source.
22
InstallatIon anD maIntenance
VARMECA 30
Variable speed motor or geared motor
Run/Stop command (1.11)
Drive active (10.02)
Current (4.01)
Frequency (5.01)
Ramp hold (2.03)
Brake control (12.40)
3.7 - Example of supplying 2 motors
with or without brake in parallel with a
single VARMECA
3.7.1 - The VARMECA must be sized to take
account of the total motor power rating
- the flange with 4 cable glands option must be used to make
it easier to wire up the 2nd motor.
3.7.2 - The 2nd motor is designed to connect
to the terminals marked U, V, W and PE on the
ESFR VMA option for VMA 31/32 or on the 2nd
motor option for VMA 33/34.
3.7.3 - Connecting the brake on the 2nd motor
- With the VMA ESFR option, the rectifier is supplied
between 2 mains phases and the solid state relay; connect
it from the F1 and F2 terminals of the esFR Vma 31/32 to
the esFR Vma 33/34.
F2
F1
F1 and F2 terminals of the ESFR VMA 31/32 option
3776 en - 2013.06 / k