Product Information
Safety technics modular generation in metal housing version 08 dated: 2009-04-10 page 20 from 32
Output modules
Features
•
Status indicators.
•
The DNDS complies with the following safety requirements:
•
The circuit is redundant with built-in self-monitoring.
•
The safety function remains effective in the case of a component failure.
•
With every on-off cycle of the machine the relays are automatically tested to make sure they open and close
correctly.
DNDS PMG
STOP SPEED
UB
OD
OS
A2
A1
0V
24V
44
43
34
33
24
23
14
13
SPEED
STOP
NC
NC
SPEED
STOP
Features:
2 safety contacts for
standstill (
14 23
24
13
) positive guided and 1 semi-conductor output (PNP
),
2 safety contacts for motion monitoring (
44
33
34 43
), positive guided and 1 semi-conductor output (PNP
)
Features DNDS PMG
2 safety contacts for
standstill (
14 23
24
13
) positive guided and 1 semi-conductor output (PNP
),
2 safety contacts for motion monitoring (
44
33
34 43
), positive guided and 1 semi-conductor output (PNP
)
DNDS PMG: Applications of the outputs
STOP contacts: Standstill monitoring
If the protection cover is closed and one or more drives are in movement, the NO-contacts
13-14
and
23-24
open
immediately. The output SO switch off. The LED STOP is not illuminated. The protection cover cannot be opened.
If all drives are stopped the contacts
13-14
and
23-24
close. The protection cover can be opened. The output SO
switch on, the LED STOP is illuminated.
SPEED contacts: Motion monitoring
If the protection cover is closed, the F-inputs and respectively the D-inputs of DNDS will be connected to 24V DC
via the switch of the protection cover. The automatic mode will be monitored.
In case of the protection cover is open DNDS monitors the standstill of all drives, if there is no function mode se-
lected.
If a function mode is selected, as example tool setting via SH-input or semi automatic mode via R1-input of DNDS,
this function mode will be monitored.
If one or more drives break the standstill or the programmed speed of the function mode, the NO contacts
33-34
and
43-44
open immediately. The output OD switches off. The LED SPEED does not illuminated.
The drives will be stopped by emergency stop circuit (STOP category 0). See principal schematic below.
The contacts close again, if the actual speed is 10% less than the programmed speed. The output OD switches on.
The LED SPEED illuminates.
The break of the programmed speed will be stored via LED SPEED at the monitoring module. The LED SPEED is
dark, also if all drives are in standstill. This makes it possible to know, which drive broke the speed. If the drives are
running, the LED SPEED illuminates. After interruption the power supply of DNDS for
≥
≥
≥
≥
2s the stored information
will be cleared.
If the function “restart disable” is selected the contacts close again, if the drives are in standstill and the power sup-
ply will be turn off
≥
≥
≥
≥
2s
.
Содержание DBDS 1VMG
Страница 1: ...DNDS Modular in metal housing Product information Safety for men and machines...
Страница 32: ......
