Voltage Monitoring Functions - Siemens SIMADYN D Hardware Manual

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NOTE
2.2.2

Voltage monitoring functions

Input voltage
Output voltage
System failure
message
Hardware - SIMADYN D
Edition 04.2011
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There are following fuses on the printed circuit board of the power supplies:
Power supply Fuse
SP22.5/SP23.5 F601
SP8.5 F400
The power supply PC boards are suitable for the connection to IT
systems.
The input voltage is monitored for undervoltage and overvoltage conditions.
Input voltage
Undervoltage:
SRx.1/SRx.2: < 20 V
or
SRx.3/SRx.4: < 170 ...175 V
Overvoltage
SRx.1/SRx.2: > 32 V
or
SRx.3/SRx.4: > approx. 265 V
All of the output voltages are monitored for an undervoltage condition (e.g.
as a result of overload/short-circuit)
Undervoltages at the output
V (5 V) < 4.7 ... 4.85 V
(for t>100-200 µs)
V (+ 15 V) < approx. 14 V
V (- 15 V) > approx. -14 V
The associated module (under the „STOP" tab) is configured in HWConfig
under "object properties" to define how the module behaves when a system
failure message is output (bus signal *RDYIN=low):
 Modules can reset their binary and analog outputs
 CPU modules can go into the "stop" condition ("H")
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Type Voltage rated value
T4A H 250 V
T8A H 250 V
Response
Green OK-LED goes dark
The output voltages are shutdown;
CPU stop (DSAVE signal)
The system automatically restarts when
the input voltage increases to approx.
196 V.
Red fault LED is lit;
The output voltages are shutdown,
CPU stop (DSAVE signal)
Automatic restart
Response
Red fault LED is lit
The output voltages are shut down;
(CPU stop)
No automatic restart (the line supply
voltage must be disconnected)
Red fault is lit
5V voltage remains
System failure message
Subracks
2
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