User manual

Geo Brick Drive User Manual
Pinouts and Software Setup 148
Setting up the General Purpose Relay, Brake
This option provides either a general purpose relay (which can be toggled in software) OR a dedicated
brake relay output tied to its’ corresponding channel amplifier-enable line. This option is built to order
and is jumper configurable at the factory (E6, E7, E8 and E9).
The brake relay is commonly used in synchronizing (in hardware) external events such as automatically
releasing a motor brake upon enabling it (i.e. vertical axis). In this mode, the general purpose relay has no
use, and the related registers (suggested M-variables) are meaningless.
Caution
This option utilizes the Omron G6S-2F relay, which is rated to up to
220VAC. However, it is advised to use an external relay for AC
operations, and limit the usage for this connection to up to 30VDC at
2 amperes.
The brake output can be either:
 High true using the normally open contact (pin #9)
 Low true using the normally closed contact (pin #4)
Also, it can be either sourcing or sinking depending on the wiring scheme.
The following table summarizes the logic of operation:
Operation
Command From
Geo Brick Drive
Contact between pins
#8 and #9
Contact between pins
#8 and #4
Brake
Amp. disabled (killed)
Open
Closed
Amp. Enabled (open/closed loop)
Closed
Open
GP Relay
M-variable = 0
Open
Closed
M-variable = 1
Closed
Open