SIGMATEK MDD 111-1, Manual

Page: 43 / 84

MDP 102-1
29.08.2019 Page 43
4.2 Function
The safety functions in the DIAS Drive are controlled over two digital inputs.
The following table shows the status that the ENABLE_L and ENABLE_H inputs must as-
sume to enable normal operation or trigger the safety function.
Input Status Relay output S3/S4 Description
ENABLE_L ENABLE_H
Open Open When the servo am-
plifier is supplied with
24 V, the inputs are
closed after a mini-
mum delay 0.4 of
seconds and a maxi-
mum of 1 seconds Safe status of the drive
system
Low Low When the servo am-
plifier is supplied with
24 V, the inputs are
closed after a mini-
mum delay 0.4 of
seconds and a maxi-
mum of 1 seconds
•
Single channel safe
status only when using
classic I/O technology
•
Safe status of the
drive system , when a
safe output is used by a
Safe PLC, also when
ENABLE_L is connected
with „Ext. GND“
Low Open
Low High Open Drive system ready
If the ENABLE_L and ENABLE_H are changed from any status to the "Drive Ready" status,
the servo amplifier is not immediately enabled. In addition, in the software (
K-EN = 1) or the
corresponding bit in the "control word" must be set so that the software "enable" can be set
and the drive therefore switched to the operational mode.