3 dc bus monitoring (ou, oc1, oc2, oc3), 5 fan monitoring (fan1), Dc bus monitoring (ou, oc1, oc2, oc3) – Lenze ECSCExxx Power supply module User Manual
Page 105: Fan monitoring (fan1), Monitoring functions
Monitoring functions
Configuring monitoring functions
Voltage supply monitoring − control electronics (U15)
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105
EDBCSXE040 EN 7.0
9.3.2
Voltage supply monitoring − control electronics (U15)
If the voltage at X6/DI1 or X6/DI3 falls below 17 V, TRIP "U15" is triggered. The fault can
only be reset if U > 19 V.
9.3.3
DC bus monitoring (OU, OC1, OC2, OC3)
Overvoltage in DC bus (OU)
If the DC bus voltage exceeds 880 V, the power supply module sets TRIP "OU" to protect the
devices.
Short circuit in the DC bus (OC1)
The power supply module monitors the DC bus for short circuit during charging. If a short
circuit is detected, the TRIP "OC1" is triggered. This TRIP can only be reset after 3 s.
Earth fault in the DC bus (OC2)
The power supply module checks the DC bus for an earth fault before charging. If current
is already flowing or a voltage is detected on the DC bus, the power supply module sets TRIP
OC2. This TRIP can only be reset after 3 s.
Load on DC bus when charging (OC3)
The power supply module monitors the voltage rise in the DC bus during charging. If the
DC bus voltage does not rise for 500 ms, this indicates that power is drawn from the DC bus
or that the charging current is set too low (C0022). In this case the TRIP "OC3" is triggered.
This TRIP can only be reset after 3 s (from software version 2.3 onwards).
9.3.4
Temperature monitoring of device heatsink (OH) / inside the device (OH1)
The temperature inside the device and the heatsink temperature are monitored to protect
the ECS module from impermissible heat. If the temperature exceeds the corresponding
limit value, a TRIP is triggered. The higher−level control system can request the
temperature values via the system bus (CAN).
ƒ
Heatsink temperature > 90
C
à TRIP "OH"
ƒ
Temperature inside the device > 90
C
à TRIP "OH1"
9.3.5
Fan monitoring (FAN1)
For built−in units of the ECSEE series, the integrated heatsink fan is monitored. If the fan is
switched on and the feedback signal fails for more than 2 s, TRIP "FAN1" is set.