7
Digital Input (DI) Wiring
The digital inputs may be used as simple equipment status inputs.
1.
Review the Precautions section.
2.
Connect one wire from field contact to desired input terminal (49,
50, 51, 52, 53, 54, 55 or 56). Polarity is not important.
Triac Wiring
The selected wire gauge must be consistent with load current rating.
Review the Precautions section before wiring.
Triac loads can be powered from either the controller’s 24Vac supply
or from an external 24Vac supply. Where the controller is powered
from a 24Vdc supply, the triac load
must
be powered from an external
24Vac transformer.
Internally Powered Triac Loads
A suitably rated transformer must be used, with the 24Vac wired to
terminal 1 and the Common wired to terminal 40 (GND). Terminals 1 to
9 are internally linked.
Externally Powered Triac Loads
Each load should be connected and powered as follows:
To wire a floating control 24Vac actuator:
1.
Review the Precautions section.
2.
Connect 24Vac supply to actuator common terminal.
Connect drive open and drive close actuator terminals to appropriate
triac output terminals.
Analogue Output (AO) Wiring
AO1 to AO4 supply from 0 to 10Vdc to modulate a voltage controlled
device.
•
Minimum input impedance for a device or actuator operated by an
AO is 10k
Ω
.
•
The maximum current that a 0-10Vdc output can source is 1mA.
3.
Review the Precautions section.Connect positive signal wire to
desired output terminal (34, 35, 36 or 37).
Connect negative signal wire to the corresponding AO COM terminal
73, 74, 75 or 76).
Power Supply Wiring
Notes:
1.
If using a touch screen via the ribbon cable, the MN650 must be
supplied from 24Vac, not 24Vdc.
2.
This product contains a non-isolated half-wave rectifier power
supply and must not be powered by transformers used to power
other devices containing non-isolated full-wave rectifier power
supplies. If multiple devices are powered from the same
transformer, verify that the transformer is properly sized to power
all equipment simultaneously and all devices contain the same
type of rectifier power supplies or internal isolation. Also verify that
correct polarity has been maintained between all connected
devices. Refer to DS 10.250,
EN-206, Guidelines for Powering
Multiple Full-Wave and Half-Wave Rectifier Devices from a
Common Transformer
for detailed information.
3.
Install wiring according to job wiring diagrams and local electrical
codes.
The wire gauge used must be consistent with load current rating.
24Vac Power Wiring
1.
Review the Precautions section.
2.
Ensure that the controller GND terminal is connected to Earth
before
connecting the power wiring to the controller.
3.
Connect power ground wiring to terminal 40 (GND).
4.
Connect power 24Vac wiring to terminal 1 (24V~).
24Vdc Power Wiring
1.
Review the Precautions section.
2.
Ensure that the controller GND terminal is connected to Earth
before
connecting the power wiring to the controller.
3.
Connect power ground wiring to terminal 40 (GND).
4.
Connect power 24Vdc to terminal 1 (24V~).
DI Wiring: Dry Contact (VFC)
Refer to the Wiring Rules section.
49, 50, 51, 52, 53, 54, 55 or 56
10, 11, 12, 13, 14, 15, 16, 17
Terminals 10 to 17 are
internally linked.
DI Wiring: Wet Contact:
Not Connected
49, 50, 51, 52, 53, 54, 55 or 56
10, 11, 12, 13, 14, 15, 16, 17
24Vac or 24Vdc Common
40 (GND)
Note: The source 0V must reference GND (Terminal 40)
Source (24Vac or 24Vdc)
24Vac Common
2, 3, 4, 5, 6, 7, 8, 9
41, 42, 43, 44, 45, 46,
47, 48
Load
18VA max.
24Vac
24Vac
230Vac
1 (24~)
40 (GND)
External
transformer
24Vac
40 (GND)
41, 42, 43, 44, 45, 46,
47, 48
24Vac Common
Triacs can switch 18VA max.
Load
Analogue Output
0 to 10Vdc
34, 35, 36 or 37
73, 74, 75 or 76
Refer to the Wiring Routing Rules section.
Primary
Ground Frame of
Transformer to
Known Ground
24Vac Secondary EN 61558.
13VA at 50/60Hz.
1
(24V~)
40
(GND)
{
1
(24V~)
40
(GND)
24Vdc
Supply
+
-
