16
BG 5933, BH 5933 / 11.06.18 en / 993
Input
Nominal voltage U
N
:
BG 5933:
AC 24 V; DC 24 V
BH 5933:
AC 24, 42, 48, 110, 120, 127, 230, 240 V
DC 24 V
Voltage range:
AC 0.85 ... 1.1 U
N
at 10 % residual ripple:
DC 0.9 ... 1.1 U
N
Nominal consumption:
AC approx. 4 VA
DC approx. 2.3 W
Nominal frequency:
50 / 60 Hz
Delay time for simultaneity
demand:
max. 0.5 s
Recovery time:
1 s
Control contacts:
2 x (1 NO, 1 NC contacts)
Current via control contacts
with DC 24 V:
NO contact:
typ. 50 mA
NC contact:
typ. 20 mA
Fuse protection:
internal with PTC
Overvoltage protection:
by MOV
Output
Contacts:
BG 5933.22:
2 NO, 1 NC contacts
BH 5933.48:
3 NO, 1 NC contacts
The NO contacts are safety contacts.
The NC contacts 31-32 and 41-42 can only be used for monitoring.
Operate time:
typ. 40 ms
Release time:
typ. 15 ms
Contact type:
relay, forcibly guided
Nominal output voltage:
AC 250 V
DC: see continuous current limit curve
Switching of low loads:
≥
100 mV
(contacts with 5
µ
Au)
≥
1 mA
Thermal current I
th
:
max. 5 A
(see continuous current limit curve)
Switching capacity
to AC 15:
NO contacts:
3 A / AC 230 V
IEC/EN 60 947-5-1
NC contacts:
1 A / AC 230 V
IEC/EN 60 947-5-1
to DC 13:
NO contacts:
1 A / DC 24 V
IEC/EN 60 947-5-1
NC contacts:
1 A / DC 24 V
IEC/EN 60 947-5-1
to DC 13:
NO contact:
4 A / DC 24 V at 0.1 Hz
NC contact:
4 A / DC 24 V at 0.1 Hz
Circuit Diagrams
M7094
23 31
13
Y2
Y1
A1
(+)
S22
(-)
14
S11
S12
(+)
24
A2
(-)
S21
32
K1
K2
A1
S11
S12
X2
X1
S22
A2
S21
13
31
23
14
32
24
BG 5933.22
41
42
K1
K2
13
23
33
S11
S21
Y2
Y1
14
24
34
A1
(+)
S12
(+)
S23
(+)
A2
(-)
S13
(-)
S22
(-)
S11
S12
(+)
S13
(-)
S21
S22
(-)
S23
(+)
A1
(+) 13 23
33 Y1 Y2
14 24 34
41 42
A2
(-)
M7093_a
BH 5933.48
Connection Terminals
Terminal designation
Signal description
A1 (+)
+ / L
A2 (-)
- / N
S11, S21, Y1, Y2
Inputs
S12(+), S13(-), S22(-), S23(+)
Outputs
13, 14, 23, 24, 33, 34
Forcibly guided NO contacts for
release circuit
31, 32, 41, 42
Forcibly guided indicator output
Notes
If both buttons are pressed while switching on the operating voltage (e.g.
after voltage failure) the output contacts do not energize.
The terminal S22 also serves as reference point for checking the control
voltage.
On BG 5933 there is only one terminal S12 and S22.
Set-Up Instructions
The device has to be connected as shown in the application examples.
When connecting the push-buttons in parallel or in series the safe function
of the relay is disabled. Connected contactors (relays) must have forcibly
guided contacts and have to be monitored in the feedback circuit.
To start a dangerous movement, 2 push buttons are used, each equipped
with 1 NO and 1 NC contact. The output contacts will be switched if both
push buttons are operated within
≤
0.5 s. The buttons must be designed
and installed in a way, that it is not possible to manipulate or to operate
them without intention.
The distance between push buttons and dangerous area must be chosen
in a way that it is not possible to reach the dangerous area after release
of one button before the dangerous movement comes to standstill.
The safety distance "s" is calculated with the following formula:
s = v x t + C
a)
moving speed of person v = 1 600 mm/s
b)
stopping time of the machine t (s)
c)
Additional safety distance C = 250 mm
If the risc of accessing the dangerous area is prohibited while the push
buttons are pressed e.g. by covering the buttons, C can be 0. The minimum
distance has to be in this case 100 mm. See also EN 574.
Technical Data
