5.3 SERVOPACK Models without a Built-In Dynamic Brake
5.3.4 Parameter Settings for the Dynamic Brake Circuit
5-16
5.3.4
Parameter Settings for the Dynamic Brake Circuit
You must set the following parameters to create the dynamic brake circuit.
/DBON (Dynamic Brake Operation Request Output) Signal
The /DBON signal is the trigger signal for executing dynamic braking.
Create the sequence so that the Magnetic Contactor in the dynamic brake circuit is excited
when the /DBON signal is turned ON.
The /DBON signal is required to execute dynamic braking on SGD7S-210D to 370D SERVO-
PACKs. On SERVOPACKs other than SGD7S-210D to 370D, the /DBON signal cannot be allo-
cated.
Note: Use Pn51A = n.
X
(/DBON (Dynamic Brake Operation Request Output) Signal Allocation) to allocate the
/DBON signal to a connector pin. Refer to the following section for details.
7.1.2 Output Signal Allocations
/DBANS (Dynamic Brake Answer Input) Signal
The /DBANS signal is used to check the operating status of the Magnetic Contactor in the
dynamic brake circuit.
Note: Use Pn515 = n.
X
(/DBANS (Dynamic Brake Answer Input) Signal Allocation) to allocate the /DBANS sig-
nal to a connector pin. Refer to the following section for details.
7.1.1 Input Signal Allocations
Always configure the parameter settings for the /DBANS and /DBON signals when using the
External Dynamic Brake Resistor.
Item to Set
Parameter
Reference
Allocation of /DBON (Dynamic Brake Operation Request Output)
signal
Pn51A = n.
X
Allocation of /DBANS (Dynamic Brake Answer Input) signal
Pn515 = n.
X
Selection of motor stopping method
Pn001
Energy consumption of the Dynamic Brake Resistor
Pn601
Resistance of Dynamic Brake Resistor
Pn604
1. If you allocate more than one signal to the same output connector pin, a logical OR of the sig-
nals is output. Set the /DBON signal so that it is not allocated to the same terminal as another
output signal.
2. If the /DBON signal is allocated to the same terminal as another output signal, the A.F32
(Dynamic Brake Operation Request Output Signal Setting Error) alarm will occur to prevent
unexpected operation.
The A.F32 alarm will also occur when an output signal is allocated with the following objects to
the same terminal as the /DBON signal.
•
Digital outputs (60FEh)
•
Objects related to ZONE outputs (2752h, 2753h)
•
Objects related to output signals (250Eh to 2510h, 2514h)
Type
Signal
Connector Pin No.
Signal Status
Meaning
Output
/DBON
Must be allocated.
ON (closed)
Execute dynamic braking.
OFF (open)
Do not execute dynamic braking.
Type
Signal
Connector Pin No.
Signal Status
Meaning
Input
/DBANS
Must be allocated.
ON (closed)
Dynamic braking is not being executed.
OFF (open)
Dynamic braking is being executed.
Important