Leroy-Somer VARMECA 30 Instalación Y Mantenimiento página 58

LEROY-SOMER
3.5.2.3 - 3-phase AC power supply in accordance with safety standard EN954-1 - category 2 or 3 with use of safety input
SDI2 redundantly with logic input DI2
(local options or external ref.)
Forward/Stop
Reverse/Stop
QS: Fused isolator: QS must be opened before any intervention on the electrical parts of the drive or motor.
AU: Emergency stop button.
KA: Relays
Optional braking resistor. Dissipates the active power returned by the motor onto the drive DC bus in the event of a driving
machine.
Using the safety input means the motor can be stopped in freewheel mode without using a line contactor. The drive's internal
principles are sufficiently safe to perform a stop using the safety input directly (category 1 of EN954-1).
Duplication of the stop command on a logic input enables use of the internal drive redundancy to perform a freewheel stop
(application of category 3 principles in accordance with EN954 for the part relating to the drive).
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INSTALLATION AND MAINTENANCE
VARMECA 30
Variable speed motor or geared motor
CONNECTIONS
VARMECA 33/34 (only)
0-10 V/4-20 mA
speed reference
Motor PTC input
Local option
indication
External
fault input
Selection of
0-10 V/4-20 mA
speed reference
AU
KA
KA
KA
10V L1
ADI1
L2
0V
L3
ADIO3
0V
PE
DI01
+24V
R+
Braking resistor
DI2
(optional)
R-
DI3
+24V
DI4
SDI1
SDI2
COM
RL10
SD01
SD02
3776 en - 07.2007 / h
Mains supply
QS