Function Diagram; Block Diagram; Approvals And Markings; Applications - DOLD SAFEMASTER LG 7927 Mode D'emploi

Safety Technique
SAFEMASTER
Delay Module, On Delayed
LG 7927

Function Diagram

U
U N
A1/A2
Y1
Y2
17-18
27-28
37-38
tv
45-46
tv
55-56

Block Diagram

A1(+) A2 S11
overvoltage - and
2
short circuit strength
protection
K1t
24V
Netz K1t
S21
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.
tv
M10115_a
Y1 Y2 17 27 37 45
time circuit
on delay
K2t
K2t
18 28 38 46
Your advantage
• Easy to realise safe timing circuits
• 4 forcibly guided output contacts at only 22.5 mm width
Features
• According to
- 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 and IEC/EN 61511
when connected to a suitable safety module
• Adjustable time delay
• As option fixed time delay
• High long life stability due to digital time base
• Adjustable with or without cross fault detection
• Output: 3 NO contacts + 1 NC contact + 1 forcibly guided
• feedback contact
or 4 NO contacts + 1 forcibly guided feedback contact
• LED indicator for channel 1, 2 and operation voltage
• Wire connection: also 2 x 1.5 mm
2 x 2.5 mm solid DIN 46228-1/-2/-3/-4
2
• As option with pluggable terminal blocks for easy exchange of devices
- with screw terminals
- or with cage clamp terminals
• Width 22.5 mm

Approvals and Markings

Applications

• Delayed start or enabling of a movement.
• Delayed enabling of a solenoid lock, e.g. SAFEMASTER STS

Indicators

Upper LED:
Lower LED:

Circuit Diagrams

17 27 37
55
A1
S11 Y1
(+)
A1 S11 17 27
Y1
K1t
K1t
K2t
Y2
18 28 38
A2 S21
A2 S21 Y2
K2t
18 38
28
LG 7927.97

Connection Terminals

56
Terminal designation
M10222
A1 (+)
A2 (-)
S11, S21
Y1, Y2
17, 18, 27, 28, 37, 38, 47, 48
45, 46
55, 56
13
stranded ferruled, or
2
Canada / USA
A025518
On, when supply connected
On, when relay K1t and K2t energized
17
45
A1
(+)
55
A1 S11
Y1
37 45 55
K1t
K2t
Y2
A2 S21
46 56
A2
56
M10111
18
46
LG 7927.98
Signal description
+ / L
- / N
Inputs
Outputs
Positive driven NO contacts for
release circuit
Positive guided indicator output
Positive guided feedback circuit
LG 7927 / 11.03.20 en / 273A
27 37 47
S11 Y1 55
17 27 37 47 55
18 28 38 48 56
S21 Y2 56
M10113
28 38 48