Lenze DSD - Manual (Page 475)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
475
18 Drive dimensioning messages
18.9 Regenerative power supply module
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18.9.9 I×t utilisation of the brake transistor is >100 %
18.9.10 Permissible pulse power is exceeded
18.9.11 Permissible power of the regenerative power supply module is exceeded
Warning!
The I×t utilisation of the brake transistor in the regenerative power supply module (without feedback) is
xxx %. Thus, the limit value of 100 % is exceeded.
Cause Effects Possible remedies
The integrated brake transistor can-
not take that load without mains
feedback.
The brake transistor is overloaded. Use mains power recovery.
Warning!
The permissible pulse power of the regenerative power supply module is exceeded. The utilisation is xxx
%.
Cause Effects Possible remedies
Too high pulse load for the module. Module is destroyed. • Select a bigger regenerative pow-
er supply module.
• Connect several regenerative
power supply modules in parallel.
Warning!
The max. permissible power of the regenerative power supply module with support of the brake transistor
integrated in the module is exceeded in feedback operation. The utilisation is xxx %.
Cause Effects Possible remedies
The peak braking power is too high. Even the support with a brake resis-
tor does not provide for a safe electri-
cal braking operation.
• Select a bigger regenerative pow-
er supply module.
• Connect several regenerative
power supply modules in parallel.