Lenze 8400 User Manual

9 Diagnostics & error management
9.8 Operation without mains supply
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Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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9.8 Operation without mains supply
The following display parameters have a value of "0" if the mains supply is switched off and the
external 24 V supply of the inverter is switched on:
 Note!
Observe the following restrictions for operation without mains supply:
Safety state
Inverters of the 8400 series can be optionally equipped with the integrated "Safe torque
off (STO)" safety system.
• Up to and including version 13.xx.xx, the following applies:
If merely the external 24-V supply of the inverter is switched on, the "Safe torque off"
status in C00137
(bit 10) will not be updated.
• From version 14.00.00 the following applies:
If merely the external 24-V supply of the inverter is switched on, the "Safe torque off"
status in C00137
(bit 10) will be updated.
Fan monitoring functions
The fan monitoring functions are only active if the mains supply is switched on.
Parameters Info
C00050 MCTRL: Speed setpoint
C00051 MCTRL: Actual speed value
C00052 Motor voltage
C00053 DC-bus voltage
C00054 Motor current
C00058 Output frequency
C00061 Heatsink temperature
C00064/1...3 Device utilisation (Ixt)
C00066 Thermal motor load (I²xt)
C00177 Switching cycles
C00725 Current switching frequency

Lenze 8400 Specifications

General

Category	DC Drives
Series	8400
Protection class	IP20
Control Type	Vector control
Communication	CANopen, PROFIBUS, Ethernet
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature
Input Voltage	AC 230/400/480 V