Graco 334130A, Instructions-Parts List Manual

Page: 28 / 108

Setup
2. Open the electrical enclosure door.
3. Route I/O cables through strain relief.
4. Remove power from the PLC.
5. Connect the PLC to connectors H1 and H2.
Note
Each connector has four signals. The
MZLP board specifies the input range for
each signal. See the following table for
pin assignments.
Figure 15
H1 Customer Input H2 Customer Output
Signal
Pin
Signal
Pin
1 1,2 1 1,2
2 3,4 2 3,4
3 5,6 3 5,6
4 7,8 4 7,8
Inputs: High: 10–30 VDC, Low: 0–5 VDC. Inputs
function without concern for polarity. Applying “high”
voltage will turn the heaters on and enable setback.
Removing voltage will turn the heaters off and disable
setback.
Outputs: 0–250 VAC, 0–30 VD C, 2A Maximum.
28 334130A