19
UG 6970 / 05.12.17 en / 947
Input
Nominal voltage U
N
:
DC 24 V
Voltage range:
0.8 ... 1.1 U
N
Nominal consumption:
typ. 3.2 W
Short-circuit protection:
Internal PTC
Overvoltage protection:
Internal VDR
Duty-cycle ON button:
0.1 s < t
EIN
< 3 s
Duty-cycle Reset button:
> 3 s
Safety function
Safety mat / safety edge (4)
max. permitted
safety edge contact resistance: 1000
Ω
switching current at short circuit: typ. 15 mA at U
N
Light curtains (8)
control current via S12, S22
e.g. S32, S42:
typ. 8 mA at U
N
Min. voltage on terminals
S12, S22 e.g. S32, S42
when relay activated:
DC 10 V
Output
Contacts
2 NO contacts per safety function
The NO contacts can be used for safe braking.
Thermal current Strom I
th
:
max. 8 A
(see quadratic total current limit curve)
Safety function
E-Stop (1) (6), Safety gate (2) (7),
Exclusive or contacts (5)
Start up at U
N
:
< 65 ms
Release delay at U
N
and
disconnecting the supply:
< 40 ms
Release delay at U
N
and
disconnecting S12,S22 or
S32, S42:
< 60 ms
Simultaneity demand:
< 3 s
Two-hand control (3)
Start up at U
N
:
< 110 ms
Release delay at U
N
and
disconnecting the supply:
< 40 ms
Release delay at U
N
and
disconnecting S12,S22 or
S32, S42:
< 60 ms
Simultaneity demand:
< 0,5 s
Safety mat (4)
Start up at U
N
:
< 85 ms
Release delay at U
N
and
disconnecting the supply:
< 40 ms
Release delay at U
N
and
disconnecting S12,S22 or
S32, S42:
< 60 ms
Light curtains (8)
Start up at U
N
:
< 35 ms
Release delay at U
N
and
disconnecting the supply:
< 40 ms
Release delay at U
N
and
disconnecting S12,S22 or
S32, S42:
< 25 ms
Simultaneity demand:
< 1 s
Switching capacity
to AC 15
NO contacts:
3 A / AC 230 V
IEC/EN 60 947-5-1
to DC 13
NO contacts:
2 A / DC 24 V
IEC/EN 60 947-5-1
Electrical life
at 5 A, AC 230 V cos
j
= 1:
> 1.5 x 10
5
switching cycles
Permissible operating frequency
1. safety function:
max. 1800 switching cycles / h
2. safety function:
max. 360 switching cycles / h
Short circuit strength
max. fuse rating:
6 A gG /gL
IEC/EN 60 947-5-1
Mechanical life:
10 x 10
6
switching cycles
Semiconductor monitoring output
(not safety):
1 per safety function
max. 50 mA DC 24 V, plus switching
(see quadratic total current limit curve)
Technical Data
Operation mode
With the potentiometer on the front plate the operartion mode can be
adjustet. The adjustment must be required before energizied. Adjustment
during energization is not allowed.
Only an automatic start at safety function two-hand control (3) is possible.
Start
Fkt. 1
Fkt. 2
1
MANUAL
MANUAL
2
MANUAL
AUTO
3
AUTO
HAND
4
AUTO
AUTO
5
MANUAL with common
button
Line fault detection e.g. monitoring of ON-button
If the On-button pressed more than 3 s the adequate output contacts of the
safety function can't be switch. The output contacts can be energized when
the On-button pressed again (0.1 s < t
ON
< 3 s).
A line fault is detected if the On-button more than 10 s is actuated. The
output contacts of the adeauate safety function can only be energized with
a reset or re-start with on an off switching of power supply.
Reset and external failures:
The reset input is used to reset external failures (application failures or
removable external failures as e.g. a line fault on reset button). If the reset
signal is connected to the input for more than 3 sec the unit unit makes a
reset. A new reset is only possible when the reset signal had been switched
off temporarily.
If an external failure occurs because both input channels of a safety function
did not switch on or off within the simultanious time, a reset is only possible
if both channels are switched to off state after removing failure cause.
If an external failure occurs in only one safety function, only this function
will be disconnected. The second safety function still continuous to work.
Function setting
The variants with selectable safety functions have 2 potentiometers Fkt.1
and Fkt.2 to select the required function. The following functions are possible:
Fkt. 1 / Fkt. 2
Safety function
1
E-Stop
cross fault detection
2
Safety gate
3
Two-hand control
4
Safety mat / Safety edge
5
Exclusive or contacts
6
E-Stop
without
cross fault detection
7
Safety gate
8
Light curtain
Practical Notes
Operating Potentiometer
Poti "t
Fkt
"
Adjustment of delay function
Poti "t
max
"
Adjustment of time range
Poti "t"
Fine adjustment at time range
Содержание SAFEMASTER C UG 6970
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