DOLD SAFEMASTER LG 5928, Руководство по эксплуатации

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18
LG 5928 / 13.12.18 en / 047A
Troubleshooting
Maintenance and repairs
- The device contains no parts that require maintenance.
- In case of failure, do not open the device but send it to manufacturer
for repair.
Failure Potential cause
LED "Power" does not light up Power supply A1/A2 not connected
LED "K1" lights up,
but "K2" remains off - Safety relay K1 is welded
(replace device)
- A 1-channel switch-off occurred on
S12 (switch channel off on
S22 e. g S32)
LED "K2" lights up,
but "K1" remains off - Safety relay K2 is welded
(replace device))
- A 1-channel switch-off occurred on
S22 e. g. S32 (switch channel off
on S12)
Device cannot be activated - The delayed contacts are not yet
switched off
- Safety relay is welded
(replace device)
- Min. one of this connection is not
present (S11-S12, S11-S32, S21-S22)
Manual start mode:
- Line fault on start-button (disconnect
power supply and remove fault)
- Automatic start mode:
S13-S34 are not bridged
Quadratic total current limit curve
Arc limit curve
Switching current I [ A ]
safe switch-off, no standing arc
max. 1 switching cycle/s
Switching
voltag
e
U
[
V
]
0,2 0,4 0,7 1
75
50
40
30
20
15
10
250
200
150
100
2 3 4
6
M2643_
a
M9971
100
200
0 10 20 30 40 60 50
150
164A max
2
T ( C)
50
0
°
I
2
(A ) 2
- current in contactrows
I , I , I
1 2 3
I = I + I + I
2 2 2 2
1 2 3
device mounted on distance with air circulation.
max. current at 55°C over
3 contactrows = 2x(7A) + (5A) =123A
2 2 2
device mounted without distance heated by
devices with same load,
max current at 55°C over
3 contactrows = 3x (3A) = 27A
2 2
Characteristics