Filter
Top Products
4/00 UDC 3300 Controller Product Manual 23
Time proportional
output, continued
Figure 2-9 shows the Output and Alarm wiring connections for models
with Solid State Relay Output (Model DC330X-AA-XX).
For Control and Alarm Relay Contact information, see Tables 2-7 and 2-8.
Figure 2-9 Solid State Relay Output—Model DC330X-AA-XX
Alarm
Relay#2
Alarm
Relay#1
L1
L2/N
22
23
24
25
26
27
Output
Relay#1
To terminal
7 or 9
To terminal
4 or 6
AC Load
Supply
Power
Relay Load
Dummy Resistor
N.O.
1
2
3
4
5
6
7
8
9
Time Proportional Duplex
Time Proportional Simplex
Alarm
Relay#1
L1
L2/N
22
23
24
25
26
27
Output
Relay#1
To terminal
7 or 9
Output
Relay#2
AC Load
Supply
Power
Relay Load
Dummy Resistor
N.O.
N.O.
AC Load
Supply
Power
Relay Load
Dummy Resistor
If the load current is less than the minimum rated value of 20 mA, there may be a residual voltage across both ends of
the load even if the relay is turned off. Use a dummy resistor as shown to counteract this. The total current through the
resistor and the load current must exceed 20 mA.
2
3
Alarm #2 not available with Time Proportional Duplex or Three Position Step Control or Position Proportional control.
1
Solid State relays are rated at 0.5 amps. Customer should size fuses accordingly. Use Fast Blo fuses only.
1
1
3
3
2
3
1
1
2
3
4
5
6
7
8
9
N.C.
N.C.
N.O.
N.O.
N.C.
N.O.
AC Load
Supply
Power
Alarm Relay #2 Load
AC Load
Supply
Power
Alarm Relay #1 Load
AC Load
Supply
Power
Alarm Relay #1 Load
24164
Electromechanical relays are rated at 5 Amps @120 Vac or 30 Vdc and 2.5 Amps at 240 Vac.
Customer should size fuses accordingly. Use Fast Blo fuses only.
WARNING: Only connect Vac to solid state relays.
4
4
4
4