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Input / Output 4-13
MN1901
4.3.5 Relay output / digital output - X3
Location
Connector X3, pins 4 (+) & 5 (-)
Name
General purpose relay
Mint keyword
RELAY
/
OUTX.3
Description
Relay switch contacts controlled by Mint, rated at 1A,
30VDC.
Update intervals:
Immediate: Software (Mint programs)
LOOPTIME
(default 1ms):
DRIVEENABLEOUTPUT
,
DRIVEOKOUTPUT
and
GLOBALERROROUTPUT
functions. Outputs controlled by functions
MOVEOUT
,
MOVEOUTX
,
MOVEPULSEOUTX
,
PULSEOUTX
.
Programmable: PLC Task functions
The factory preset assignment for the relay is as the global error output signal
(see the Mint keyword
GLOBALERROROUTPUT
). When an error occurs the relay
is de-energized and the contacts open. When the error is cleared, the relay is
re-energized and the contacts close. The relay can be also be controlled
directly by the Mint keyword
RELAY
. When the relay is energized (
RELAY=_on
)
the contacts close. When the relay is de-energized (
RELAY=_off
) the contacts
open. The relay output may also be considered as a digital output, so can be
controlled directly using the Mint keyword
OUTX
(for example
OUTX.3=1
).
Internal relay
MintDrive
II
Control
circuitry
Relay +
Relay -
4
5
‘X3’
Figure 36 - Relay contact outputs
Note:
The internal relay has a limited lifetime and is not intended for continuous cyclical
operation. If relay operations are required more frequently than 4 - 5 times per
hour, it is recommended to use one of the digital outputs to control a replaceable
external relay.
4
5
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