Lenze ECSCAxxx - Manual (Page 209)

Monitoring functions
Configuring monitoring functions
Monitoring of internal device temperature (OH1, OH5)
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209 EDBCSXA064 EN 3.2
10.3.7 Monitoring of internal device temperature (OH1, OH5)
The temperature inside the controller can be monitored with two temperature thresholds:
ƒ Adjustable threshold (OH5)
– The warning threshold can be set under C0124
– The reaction to exceeding the threshold can be set under C0605
ƒ Fixed threshold (OH1)
– Threshold = 90 °C
– Reaction to exceeding the threshold = TRIP
The hysteresis is 5 K, i.e. the reset value for the fixed warning threshold is 85 °C.
The monitoring with the adjustable threshold (OH4) is designed as an early warning stage
before final disconnection of the controller by means of TRIP (OH). Therefore, the process
can be influenced accordingly, so that the final disconnection of the controller at
unfavourable moments is avoided. Furthermore, for instance, additional fans can be
activated, generating a noise load when switched to continuous operation.
Code Possible settings IMPORTANT
No. Designation Lenze/
{Appl.} Selection
C0124 OH5 limit 75 Threshold for temperature
monitoring inside the device ^ 209
10 {1 %} 90 C0062 > C0124 ð fault message
OH5 (C0605)
C0605 MONIT OH5 2 Fault response − monitoring of
temperature inside the
controller.
Temperature threshold can be
set under C0124. ^ 209
0 TRIP
2 Warning
3 Off