Installation
38
130000761_002_A0 - 08/2008 - © Oerlikon Leybold Vacuum
2.8.4 Relay status
Input data / status
Output data
Operating mode
Start/ Pump
Normal Error is Motor
Relay
Relay
LED
LED
stop rotating frequency present drive NORMAL ERROR STATUS ERROR
signal
≥
90% of
OPERATION
(green)
(red)
setpoint
frequency
Stop
no
no
no
off
passive
passive
off
off
Pump not operating
Stop
yes
no
no
off
passive
passive flashes
off
Pump is decelerating
Stop
yes
yes
no
off
passive
passive flashes
off
Just after stop; pump was in the normal
operating mode before that
Start
no
no
no
on
passive
passive
off
off
Just after start
Start
yes
no
no
on
passive
passive flashes
off
Pump is accelerating
Start
yes
yes
no
on
active
passive
green
off
Pump is in the normal operating mode
Stop
no
no
yes
off
passive
active
off
red
Error is present; pump is at standstill
Stop
yes
no
yes
off
passive
active
flashes
red
Error is present; pump is decelerating
Stop
yes
yes
yes
off
passive
active
flashes
red
Error has just occurred
Start
no
no
yes
off
passive
active
off
red
Error is present; pump is at standstill
Start
yes
no
yes
off
passive
active
flashes
red
Error is present; pump is decelerating
Start
yes
yes
yes
off
passive
active
flashes
red
Error has just occurred
Other modes are not possible;
they indicate a failure affecting
the TURBO.DRIVE 400.