Lenze Global Drive 9300 Servo PLC Series User Manual

9300 Servo PLC
System blocks
2.12 MCTRL_MotorControl
2-58
L
ServoPLC EN 2.0
2.12.17.4 OU - overvoltage monitoring
This function monitors the DC-bus and protects the controller.
No. Monitoring function Display System variable TRIP Message Warning Off
020 Overvoltage OU MCTRL_bOvervoltage_b •
• Default setting ü Setting possible
The monitoring reacts if the DC-bus voltage exceeds a threshold set under C0173 at the terminals
-U
G
and -U
G
and remains active until the value falls below the switch-on threshold.
• The DC-bus voltage is set under C0173:
Code LCD
Possible settings
IMPORTANT
o
Lenze Selection
[C0173] UG limit 1 Adaptation of DC-bus voltage thres-
holds
• check during commissioning, and
adapt if necessary
• All drive components in DC-bus
links must have the same
thresholds
0 Mains < 400 V; with or without brake unit
1 Mains = 400 V; with or without brake unit
2 Mains = 460 V; with or without brake unit
3 Mains = 480 V; without brake unit
4 Mains = 480 V; with brake unit
• The switch-on and switch-off thresholds depending on C0173 can be obtained from the table:
C0173 threshold Switch-off threshold Switch-on threshold
0 Mains < 400 V; with or without brake unit 770 V 755 V
1 Mains = 400 V; with or without brake unit 770 V 755 V
2 Mains = 460 V; with or without brake unit 770 V 755 V
3 Mains = 480 V; without brake unit 770 V 755 V
4 Mains = 480 V; with brake unit 800 V 785 V
• The switch-off threshold determines the voltage level of the DC-bus voltage at which the pulse
inhibit is activated.
Brake torque derating
If the drive is not using a brake system (934X supply module or 935X brake unit), the brake torque
will be automatically derated if the DC-bus voltage reaches the following value:
Threshold for brake torque derating = Switch-off threshold − OV reduce
• Set the value “OV reduce” under C0172:
Code LCD
Possible settings
IMPORTANT
o
Lenze Selection
[C0172] 0V reduce 10 Threshold to activate the brake torque
reduction before OU fault
0 {10 V} 100
efesotomasyon.com - Lenze
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Lenze Global Drive 9300 Servo PLC Series Specifications

General

Brand	Lenze
Model	Global Drive 9300 Servo PLC Series
Category	DC Drives
Language	English