35
Drive for SSR
DC Voltage level is generated for switching the external SSR (Solid State Relay). Connect (+) and (-)
terminals of SSR to controller terminals 6 and 5, respectively. Use Zero-Crossover, 3 to 30 VDC
operated SSR, rated approximately 1.5 times the actual load rating. Use appropriate Heat Sink for
load rating exceeding 10A.
DC Linear Current / Voltage Output
If the Output-1 is configured for DC Linear (mA/V), connect the power module (like Thyristor, SCR,
I/P Converter, etc.) as shown in figure 12.3 (c).
OUTPUT- 2
(Terminals : 7, 8, 9)
OUTPUT- 3
(Terminals : 16, 17, 18)
The Output-2 and Output-3 are available through plug-in modules. The modules are factory configured for either Relay / SSR
or DC Linear Voltage or DC Linear Current. The connection descriptions are the same as those described for Output-1.
Refer Figure 12.4(a), 12.4(b) & 12.4(c)
User Manual
neuro 102 Plus
Figure 12.3 (c)
6
5
Power
Module
Figure 12.3 (b)
6
5
SSR
12VDC
Pulses
Figure 12.4(a)
Figure 12.4(b)
Figure 12.4(c)
SERIAL COMMUNICATION PORT
(Terminals : 14 , 15) Or
DIGITAL INPUT FOR AUXILIARY SP SELECTION
(Terminals : 14, 15)
Note :
If the Controller is ordered with Auxiliary Setpoint feature, the digital input for Main & Auxiliary Setpoint selection is provided on terminals 14
& 15. The Serial Communication Port option is thus not available.
If the Optional plug-in communication board is fitted, connect terminal 14 and 15 of the controller to (+) and (-) terminals of the
Master device as shown in figure 12.5 below. For reliable noise free communication, use a pair of twisted wires inside
screened cable as shown in Figure 12.5. The wire should have less than 100 ohms / km nominal DC resistance (Typically 24
AWG or thicker). Connect the terminating resistor (Typically 100 to 150 ohm) at one end to improve noise immunity.
Figure 12.5
Terminating Resistor
Screened Cable
Twisted
Wire Pair
(100 to 150 Ohms)
15 (B-)
HOST
B-
B+
Master Device
Serial Comm.
Terminals
14 (B+)
NO
C
L
N
12
11
10
NC
24
23
22
OUT2
OUT3
S
S
R
12
11
10
24
23
22
OUT2
OUT3
12
11
10
24
23
22
OUT2
OUT3
