Function Diagram For Devices With Auxiliary Voltage; Function Diagram For Devices Without Auxiliary Voltage; Approvals And Markings; Application - DOLD SAFEMASTER BG 7925 Traduction De La Notice Originale

Safety technique
SAFEMASTER
Delay module, release delayed
BG 7925, BH 7925
BG 7925

Function Diagram for devices with auxiliary voltage

U
U N
A1/A2
U
S
Y1, Y3/Y2
25-26,45-46
17-18
37-38

Function Diagram for devices without auxiliary voltage

U
U N
A1/A2
25-26, 45-46
17-18
37-38
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.
BH 7925
t
t v
M6697_d
t
< t
v
t
v
M6656_b
• According to
- Performance Level (PL) d and category 2 to EN ISO 13849-1
- SIL Claimed Level (SIL CL) 2 to IEC/EN 62061
- Safety Integrity Level (SIL 2) to IEC/EN 61508
- Category 2 nach EN 954-1
• Variants /_ _2 to /_ _3
- Performance Level (PL) d and category 3 to EN ISO 13849-1
- SIL Claimed Level (SIL CL) 2 to IEC/EN 62061
- Safety Integrity Level (SIL 2) to IEC/EN 61508
- Category 3 to EN 954-1
• Adjustable time delay
• Long time stability by digital timing circuit
• With auxiliary voltage
• 1 timing circuit
• BH 7925 in dual voltage version
• BH 7925 optionally for AC 230 V
• Output: 1 NC contact, 1 NO contact, forcibly guided or
1 NC contact, 3 NO contacts, forcibly guided
• Indication of state of operation
• Removable terminal strips
• Wire connection: also 2 x 1.5 mm
• DIN 46 228-1/-2/-3/-4 or
2 x 2.5 mm stranded ferruled DIN 46 228-1/-2/-3
2
• Optionally with 2 timing circuits
• Optionally fixed time delay
• Optionally without auxiliary voltage on BH 7925
• Optionally for switching small loads
• BG 7925: width 22.5 mm
BH 7925: width 45 mm

Approvals and Markings

Canada / USA
* see variants only for BH 7925
1)

Application

Delayed switch-off in safety-control circuits, stop-category 1 according
to IEC/EN 60 204-1

Indication

LED "Power":
LED K1t:
LED K2t:

Block Diagram

A1(+) A2(-) A3(+) A4(-) S11(+) Y1(+) Y2(-) Y3(+)
overvoltage and
short circuit protection
24V
power
S21(-)
Block diagram for units with 2 timing circuits.
In units with only 1 circuit K2t is missing.
13
stranded ferruled (isolated),
2
*
1)
A025518
on, when operating voltage applied
on, when output relay K1t activated
on, when output relay K2t activated
17 27 37 45
2 timing circuit
release delay
K1t K2t
K1t K2t
18 28 38 46
BG 7925, BH 7925 / 28.06.19 en / 117A
K1t
K2t
M7082_d