Graco 334130A, Инструкция-перечень запасных частей

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Setup
Connect PLC
A PLC can control and monitor all items
shown in the Customer Digital Inputs and
Outputs shown on the Diagnostics screen. See
Appendix A— ADM, page 96 .
When the PLC has control of the system:
• Functionality is restricted from the ADM
• Automatic crossover is disabled. Rely on the PLC
and machine state indicators to know when to
cross over using the I/O.
Table 5 Customer Input
Signal Number
Unit A Description – Unit A Unit B Description – Unit B
1 Heat On Request Turn on the Heat Heat On Request Turn on the Heat
2
Setback Request
Put the Unit in
Setback
Setback Request
Put the Unit in
Setback
3 Pump On Request Turn on the Pump Pump On Request Turn on the Pump
4 PLC Control
Request
Unit A - Control the
TOF from the PLC
instead of the ADM
Unit B Control
Request
Unit B – High make
Unit B the active
unit. Low Unit A is
active
Table 6 Customer Output
Signal Number Unit A Description – Unit A Unit B Description – Unit B
1 Run State Bit Low See Run State Chart Run State Bit Low See Run State Chart
2 Run State Bit High See Run State Chart Run State Bit High See Run State Chart
3 Error State Bit Low See Error State
Chart
Unit B IS Active Unit Unit B is the Active
Unit
4 Error State Bit High See Error State
Chart
Inactive Unit
Drum Empty
The drum is empty
on the inactive unit
Table 7 Output Error States
Error State Bit
High
Error State Bit
Low
0 0 Machine is
good, no errors
are present
0 1 Active Unit
Drum Low
1 0 Active Unit
Drum Empty
1 1 Alarm Present
in System
Table 8 Output Run States
Run State Bit
High
Run State Bit
Low
0 0 Pump Off/ Heat
Off
0 1 Pump Off/ Heat
On
Run State Bit
High
Run State Bit
Low
1 0 Pump Off/ Heat
At Temp
1 1 Pump On/ Heat
At Temp
Note
All outputs are normally open when power is
OFF. For error (alarm) output, the contacts
open when an alarm occurs. For all others,
contacts close.
Note
The TOF system ships with two screw
terminal connectors that plug into MZLP
connectors H1 and H2. Connectors are
located in a bag on the inside of the electrical
enclosure. To replace the connectors, order
kit 24P176.
1. Turn main power switch off.
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