Operational Principle And Settings; Terminals Description; Operation Mode - WEG CPA-D Series User Manual

4 OPERATIONAL PRINCIPLE AND SETTINGS

4.1 TERMINALS DESCRIPTION

Voltages
Inputs
Outputs
Start
Alongside, the schematic of the frontal label, with led indicators and screw terminals.
To use the automatic start, you must connect terminals Y1 and Y2.

4.2 OPERATION MODE

After connecting the inputs as described on
with nominal voltage. Thus, and with the inputs not being actuated (S11-S12/S21-S22 inputs opened)
the outputs remain off.
When the inputs (S11-S12/S21-S22) are actuated, and the automatic reset input (Y1-Y2) are
connected, the outputs are activated promptly.
If one of the inputs or both are deactuated (S11-S12/S21-S22 inputs opened), all the outputs
will be shut off (contacts returning to a halt state) immediately.
For a new activation, both the inputs should be deactuated (S11-S12/S21-S22 inputs opened)
and again actuated (S11-S12/S21-S22 inputs closed).
ATTENTION!
According to EN 60204-1 automatic restart is not allowed after an emergency
stop. For this reason the machine control must prevent an automatic start after
emergency stop.
A1
A2
S11-S12
S21-S22
13-14
23-24
33-34
41-42
Y1-Y2
Voltage presence indicator LED
Supervision indicator LED of channel S1
Supervision indicator LED of channel S2
Section 3.2 INPUTS on page
Operational Principle and Settings
+24 Vdc / 24 Vac
0 Vdc / 24 Vac
Positive input channel 1
Negative input channel 2
First safety enabling circuit
2 safety enabling circuit
nd
3 safety enabling circuit
rd
Auxiliary NC contact
Automatic external reset
3-1, supply the device
4
CPA-D | 4-1