Watson-Marlow Varmeca 30 - Manual (Page 23)

57
INSTALLATION AND MAINTENANCE
VARMECA 30
Variable speed motor or geared motor
CONNECTIONS
LEROY-SOMER 3776 en - 07.2007 / h
en
3.6 - Power supply and control for
FCR brake motors
3.6.1 - Power supply for the built-in fixed
control brake (SO VMA option) VMA 31/32 only
- The brake is supplied via the rectifier fixed on the SO VMA
connection card. This connection is made at the factory.
- The rectifier is supplied by a mains phase and the motor star
point.
- No parameters need to be set on the VARMECA.
- The brake is released as soon as the VARMECA run
command is enabled. The brake is released after a stop
command, at the end of the deceleration ramp or on
disconnection of the power supply.
3.6.2 - Power supply for the built-in
sequential control brake (VMA ESFR option)
- The brake is supplied via the rectifier and a solid state relay
fixed on the VMA ESFR 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.
3.6.3 - Separate power supply
The brake is supplied and controlled by an external source.