Construction Mode
2-20 Manual # 42-02-7223
2. Power up the controller. The system will take about 60 seconds to boot.
3. If the controller fails to power up, refer to the job prints and check supply connections
and fuses.
Inside the controller cabinet, 120VAC and 110VDC output buses are presented at the lower left
corner of the iBox as shown in the illustration below.
4. Measure from any #2 bus terminal to a Common (#1) terminal and verify 120VAC (+/-
10%).
5. Measure from any #3 bus terminal to a Common (#1) terminal and verify 110VDC (+/-
10%).
Power for PC board circuitry is provided through a 5-position, pluggable connector on the right
side of the iBox (near the Computer and Drive Reset buttons) as shown below.
6. Measure from each of the voltage terminals to GND to verify -15VDC, +15VDC, and
+5VDC respectively (+/- 2%). Note: Place meter on AC range and check each supply to
ensure AC voltage does not exceed 0.050 VAC.
7. If any bus voltage is missing, check the associated fuse. The fuses are labeled with the
bus numbers and are located at the top and bottom of the iBox.
8. Check voltages at panel mounted terminals L1X, L2X, and L3X (if present).
9. Check voltages:
• on the System 12 SCR Drive - at terminals X1, X2, X3, and Y1, Y2, and Y3.
• on the Quattro DC Drive - at terminals L1, L2 and L3.
They must be within -5% to +8% of the value shown on page -SCR (or -D1) of the job
prints. If they are not, contact MCE Technical Support.
10. Power the controller down (in preparation to continue wiring equipment).
-1
-1
-1
-1
-2PI
-2PI
-2
-2
-3HA
-3HA
-3
-3
COM120 VAC110 VDC
#1 is the system common bus
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