118
Thermal overload protection (THOL)
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The signals THOL-ALARM, THOL-START and THOL-TRIP
should disappear.
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Measure the signal THOL-START until it disappears on the corre-
sponding binary output or on the local HMI unit, take the “T Line”
readings and compare with the setting of TdReset.
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Summary of Contents for REL 531
Page 16: ...10 Note signs KDSWHU 6DIHW LQIRUPDWLRQ ...
Page 44: ...38 Checking the binary I O circuits KDSWHU KHFNLQJ WKH H WHUQDO FLUFXLWU ...
Page 52: ...46 Checking the self supervision signals KDSWHU QHUJLVLQJ WKH WHUPLQDO ...
Page 140: ...134 Testing the interaction of the distance protection KDSWHU 7HVWLQJ WKH SURWHFWLRQ V VWHP ...