Eclipse UDC2500 Limit - Figure 2-7 Electromechanical Relay Output; Figure 2-8 Solid State Relay Output

Installation
8/05 UDC2500 Universal Digital Limit ControllerProduct Manual 21
A
larm
Relay#1
Output
Relay#1
L1
L2/N
4
5
8
9
N.O.
N.C.
N.O.
Relay Load
Load
Supply
Power
1
1
Electromechanical relays are rated at Amps @120 Vac or 30 Vdc and 2.5 Amps at 240 Vac.
Customer should size fuses accordingly. Use Fast Blo fuses only.
N.C.
xxxx
19
20
21
22
23
24
25
26
27
A
larm
Relay#2
N.C.
N.O.
6
To terminal
19 or 21
7
To terminal
4 or 6
Relay Load
To terminal
7 or 9
Relay Load
1
2
Load
Supply
Power
Load
Supply
Power
Figure 2-7 Electromechanical Relay Output
If the load current is less than the minimum rated value of 20 mA, then there may be 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 the load must exceed 20 mA. Solid State Relays are zero-crossing type.
2
1
Solid State relays are rated at 1 Amp at 25°C and derated linearly to 0.5 Amp at 55°C. Customer should size
fuse accordingly. Use Fast Blo fuses only.
xxxxx
Dummy Resistor
2
A
larm
Relay#1
Output
Relay#1
L1
L2/N
4
5
7
8
9
N.O.
N.C.
N.O.
Relay Load
Load
Supply
Power
19
20
21
22
23
24
25
26
27
A
larm
Relay#2
N.C.
N.O.
6
1
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.
3
To terminal
4 or 6
Relay Load
To terminal
7 or 9
Relay Load
3
2
Load
Supply
Power
Load
Supply
Power
Figure 2-8 Solid State Relay Output