Mitek RoofTracker III, Сервисный бюллетень

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SB203
ORIGINAL INSTRUCTIONS
9
Rewiring for Software Change Compatibility
Some minor wiring changes must be made for the machine to accept the program changes.
1. Lockout/tagout out as previously described on page 4, and locate the VFD in the
main electrical enclosure. It is shown on page 10.
2. Make the wiring changes according to Figure 7
. All supplies needed are included.
3. Gently tug on newly installed wires to ensure they are securely attached.
4. Reinstall the VFD cover.
Figure 7: Wire Connection Points
It is easiest to connect the wires by removing the terminal block,
connecting the wires, then putting the terminal block back in place.
TIP:
16 -gauge wires are larger in diameter than 18 -gauge wires.
JUMPER A
Wire : 18 AWG cut as needed
Label : T1
Connect :
Ext. Relay LT, terminal 2 to
Ext Relay RT, terminal 2
shares terminals with existing wires
Jumper A
Jumper B
Main
Relays
R13
JUMPER B
Wire : 18 AWG cut as needed
Label : T1
Connect :
Ext. Relay RT, terminal 2 to
Main Relay R13
shares terminals with existing wires
SIGNAL WIRE S17
Wire : 16 AWG cut as needed
Label : SI7
Connect :
Ext. Relay LT, terminal 1 to
Safety Controller SI7
Signal Wire SI7 Signal Wire SI8
SIGNAL WIRE S18
Wire : 16 AWG cut as needed
Label : SI8
Connect :
Ext. Relay RT, terminal 1 to
Safety Controller SI8
Continue on to see proper
routing of signal wires
Ext Relay LT Ext Relay RT