Relay Outputs
JNIOR models support from 4 to 12 internal SPST relays. These are small signal
relays rated for a maximum current of 1A (Contact Rating). The switching
voltage capability of these relays can be up to 220VDC (250VAC).
Maximum Ratings: 1A 60V
-----------------------------
For higher currents (up to 10A) INTEG supplies the Power 4ROUT external
module. One or more modules can be connected through the Sensor Port
expansion bus and add to the relay complement of a JNIOR.
Relay Outputs are dry-contact outputs and do not supply voltage. An externally
supplied voltage must power the circuit to be switched by the relay. This is
important when using the output to signal other equipment that may require a
voltage input.
By default Relay Outputs are Normally Open (NO) not enabling the external
circuit until activated. When a relay is closed by the JNIOR the associated
red LED will illuminate.
Internally the JNIOR offers jumpers that can reconfigure a relay output to
Normally Closed (NC) constantly enabling the external circuit being switched.
In this case the relay is activated to interrupt the circuit. This may be
useful perhaps to temporarily remove power from an external device
effectively resetting it.
The NC option on the Model 410 is available for the top 2 relays on
connector D (see
MODELS). The Model 412 (and Model 412DMX) offer 4
configurable relays. These are the top 2 on connectors B and D. The Model
414 has 2 configurable relays being the top 2 on connector C.
Connector
These are 8-pin terminal block headers on 0.200" (5.08 mm) pitch (Weidmuller
1510910000 for instance). The proper 8-pin screw terminal plugs are supplied
with the connector kit.
Connections
Relay Outputs are grouped 4 to a connector. Each relay uses a pair of adjacent
pins for a total of 8 pins per connector. Depending on the JNIOR model there
can be 1, 2, or 3 connectors providing 4, 8 or 12 relays respectively. Relay
Outputs are assigned according to the product label in order from the top of
the product (power connector) to bottom (Ethernet connector). The following
shows where to connect each relay.
Relay Relay Relay Relay
1 2 3 4
5 6 7 8
12 11 10 9 (see note)
/ \ / \ / \ / \
+---------------------------------+
| (\) (/) (/) (\) (\) (/) (/) (\) | Screw Terminal
+---------------------------------+ Block
| | | | | | | | |
| | | | | | | | |
--- --- --- --- --- --- --- ---
Note: On the Model 412 the connector for Relays 9 thru 12 enters the enclosure
from the left. Relays are assigned from top to bottom and therefore the order
is reversed (See product labeling).
SEE ALSO
HELP Topics:
MODELS,
INPUTS