Lenze ECSEAxxx Manuel d'utilisateur télécharger pdf (Page 115)

Electrical installation

Control terminals

Safe torque off

5

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115

EDKCSEX064 DE/EN/FR 6.0

5.3.3.2 Functional description

The "safe torque off" state can be initiated any time via the input terminals

X6/SI1 (controller enable/inhibit) and X6/SI2 (pulse enable/inhibit). For this

purpose a LOW level has to be applied at both terminals:

ƒ X6/SI1 = LOW (controller inhibited):

The inverter is inhibited via the microcontroller system.

ƒ X6/SI2 = LOW (pulses inhibited):

The supply voltage for the optocouplers of the power section driver is

switched off, i. e. the inverter can no longer be enabled and controlled via

the microcontroller system.

The input signal at X6/SI2 to the hardware is additionally directed to the

microcontroller system and is evaluated for the state control there. For the

external further processing a HIGH level is output for the state "safe torque

off active" at the digital output X6/SO.

The control of the inverter thus is prevented by two different methods that are

independent of each other. Therefore an unexpected start−up by the motor is

avoided.

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