Baumuller BUM64A, Руководство пользователя

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Monitoring functions
Manual Single Power Unit BUM64S/A/F
Document no.: 5.01056.03
Baumüller Nürnberg Electronic GmbH & Co. KG
72
of 118
8.4
m Monitoring function internal auxiliary voltage
The voltage required for the driver circuit of the power transistors is monitored.
When the internal auxiliary voltage is missing, a message is generated. This message is
passed on to the controller. The "ready-for-use motor-side power module" is erased.
m safety relay (optional)
The switch state of the safety relay is monitored.
Further information about the safety relay you will find in Z Messages over relay contacts –
on page 72 and in Z Appendix E - Safety relay – from page 107.
8.4.3 Messages over relay contacts
clamp terminal description
figure 25: BB_Ext, X99AB
"ready-for-use feed module"
Contact open :
Message "ready-for-use feed module" not present.
Contact closed :
Message "ready-for-use feed module" present.
further information about "ready-for-use feed module" message you will find in Z "ready-for-use feed
module" – on page 67.
.
figure 26: Prew./error, X99AB
Pre-warning - error (Pre-warning is a synonym for the better word WARNING)
(Vorw./Stör. = Prew./error)
Contact
closed :
Message WARNING not present.
Contact open :
Message WARNING present.
In which cases this message is generated read under Z Monitoring functions of feed module – on page
70.
figure 27: X68
With the safety relay you can switch off the supply voltage of the transistor drivers. After cut-off the motor
is torque-free, but is not galvanic isolated from the power module. Because the motor is not galvanic iso-
lated from the module, the motor is not voltage-free!
A typical application for the safety relay is:
f very fast resumption of operation after cut-off.
This is possible, because the DC link is not switched off.
Check back signal of safety relay (safety relay is available as an option)
Contact
closed :
no +24V-supply for safety relay. The power output respectively the converter is blocked.
Contact open :
+24V-supply for the safety relay present. The power output respectively the converter can be driven by
the controller.
If the +24V-supply for the safety relay is cut off while the drive is under operation, the drive is immediately
switched torque-free (the appliance will generate no more energy).
To re-start the drive, keep to the following procedure:
switch on +24V-supply for safety relay.
erase existing messages by a reset of the controller.