15
BG 5933, BH 5933 / 11.06.18 en / 993
0230733
Safety Technique
SAFEMASTER
Two-Hand Safety Relay
BG 5933, BH 5933
BG 5933
BH 5933
Function Diagram
max.0,5s
>0,5s
U
UN
Y1/Y2
S1
S2
23-24
13-14
A1/A2
t
M7257_a
1.) "S1, S2 activated" means, NC open and NO closed
2.) activated S1, switches "+"-potential
3.) activated S2, switches "-"-potential
Product Description
The BG 5933 or BH 5933 enables and disables a safety circuit in a safe
way. It is used to protect people and machines in applications with 2-hand
buttons on presses for metal products as well as for other production
machinery with dangerous closing movements.
Block Diagram
M7258_b
A1(+) A2(-) S12(+)
Y1
S11
Y2
S21
S22(-)
24V
32
31
13
14
23
24
K2
K1
K1
K2
K2
(+)
K1
Power
Overvoltage- and
short circuit protection
Monitoring
logic
M7259_b
A1(+)
(+)
(-)
A2(-) S12 S23
Y1
S11
Y2
S21
S13 S22
24V
42
41
13
14
23 33
24 34
K2
K1
K1
K2
K2
(+)
K1
Power
Overvoltage- and
short circuit protection
Monitoring
logic
BG 5933
BH 5933
Your Advantage
• Compact, ready to connect 2-hand safety circuit
• Cost reduction by replacing conventional contactor circuits
• Feedback circuit Y1 - Y2 to monitor external contactors used
for reinforcement of contacts
• EC-type examinated circuit according to the requirements of
the health and safety authorities
Features
•
According to
-
Performance Level (PL) e and category 4 to EN ISO 13849-1
-
SIL Claimed Level (SIL CL) 3 to IEC/EN 62061
-
Safety Integrity Level (SIL) 3 to IEC/EN 61508
-
Safety Level Type III-C according to EN 574
-
the safety regulations for two-hand controls on power-operated
presses in metalworking ZH 1-456
• Inputs for 2 push buttons with 1 NC and 1 NO contact
• Output:
2 NO contacts, 1 NC contact or
3 NO contacts, 1 NC contact
• Overvoltage and short circuit protection
• Wire connection: also 2 x 1.5 mm
2
stranded ferruled (isolated),
DIN 46 228-1/-2/-3/-4 or 2 x 2.5 mm
2
stranded ferruled DIN 46 228-1/-2/-3
• BG 5933:
width 22.5 mm
BH 5933:
width 45 mm
Indication
LED power-supply:
on, when operating voltage applied
LED K1:
on, when relay K1 active
LED K2:
on, when relay K2 active
Applications
Designed for press controls in metalworking as well as in other working
machines with dangerous closing movements.
Approvals and Markings
Canada / USA
All technical data in this list relate to the state at the moment of edition. We reserve the right for
technical improvements and changes at any time.
