7.2.1 Operating LEDs on the ISD511 Servo Drive
DEV ST
X1
X2
SVS ST
NET ST
LINK/ACT
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Illustration 51: Operating LEDs on ISD 511 Servo Drive
Table 17: Operating LEDs on ISD 511 Servo Drive
LED
Color
Flash status
Description
DEV ST
Green
On
Servo drive is in state
Operation enabled
.
Flashing
Auxiliary voltage is applied.
Red
On
Servo drive is in
Fault
or
Fault reaction active
state.
Flashing
DC-link voltage is not applied.
SVS ST
Green
On
24 V safety supply is applied.
Off
24 V safety supply is not applied.
NET ST
Green/red Fieldbus de-
pendent
Network status of the device (see corresponding fieldbus
standard).
LINK/ACT X1
(Link/activity status of
Hybrid In (X1)
)
Green
On
Ethernet link established.
Flashing
Ethernet link established and active.
Off
No link.
LINK/ACT X2
(Link/activity status of
Hybrid Out (X2)
)
Green
On
Ethernet link established.
Flashing
Ethernet link established and active.
Off
No link.
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Operation
VLT® Servo Drive System ISD 511
Operating Guide