Motion Control Engineering 2000 Manual page 54

Startup - Inspection Operation
Y-DELTA Starter
(dependent upon the "Y/D TRANSFER
54) the Y contactor should drop and the DEL contactor should
1. If the Y and DEL contactors do not pick when a demand up is present:
• Verify that there are no faults displayed on the HC-MPU board LCD display.
• Verify that relays SAFS and SAFL are picked (with Direction applied).
• If neither relay is picked, check fuse F2 and then verify that the voltage measured
between terminals 1 (1Bus) and 2 (2 Bus) is 120 VAC.
• If relays SAFS and SAFL pick but the motor does not spin, check the thermal overload
contact.
• If relay SAFS does not pick, briefly place a jumper between 2 Bus and the SAFC screw
terminal on the HC-CTL-2 board (bypasses the safety string). If direction is given and
relay SAFS does not pick with the jumper, verify there are no faults.
• If direction is given and relay SAFL does not pick, briefly place a jumper between 2 Bus
and the DLAB screw terminal on the HC-CTL-2 board (DLABR on the HC-CTL-2
board). Jumper 2 Bus to relay GS on the HC-CTL-2 board and (GSR on the HC-CTL-2
board) to ensure they pick. If relay SAFL does not pick with the jumpers, verify there
are no faults.
• Verify that the GS and GSR LEDs are ON. Otherwise, connect 2 bus to GS and GSR termi-
nals.
2. Adjust the Y-D TRANSFER TIMER to transfer from Y to DELTA just as the pump motor
reaches maximum RPM from a dead stop
54).
ATL Starter (Across The Line)
valves until after pump motor is running at speed
If the A contactor does not pick when a demand up is present:
• Verify that there are no faults displayed on the HC-MPU board LCD display.
• Verify that relays SAFS and SAFL are picked (with Direction applied).
• If neither relay is picked, check fuse F2 and then verify that the voltage measured
between terminals 1 (1Bus) and 2 (2 Bus) is 120 VAC.
• If relays SAFS and SAFL pick but the motor does not spin, check the thermal overload
contact.
• If relay SAFS does not pick, briefly place a jumper between 2 Bus and the SAFC screw
terminal on the HC-CTL-2 board (bypasses the safety string). If direction is given and
relay SAFS does not pick with the jumper, verify there are no faults.
• If direction is given and relay SAFL does not pick, briefly place a jumper between 2 Bus
and DLAB terminal on HC-CTL-2 board (DLABR on the HC-CTL-2 board). Jumper 2
Bus to relay GS on the HC-CTL-2 board and (GSR on the HC-CTL-2 board) to ensure
they pick. If relay SAFL does not pick with the jumpers, verify there are no faults.
• Verify that the GS and GSR LEDs are ON. Otherwise, connect 2 bus to GS and GSR termi-
nals.
Note
If the car needs to run at low speed to adjust the valves, set the HIGH SPEED INSPECTION
option to DISABLED
3-8 Manual # 42-02-1P21
The Y contactor picks first. Then, after a programmable delay,
TIMER",(see "Y-D OPEN TRANSN. TIMER" on page 5-
Adjust UP TO SPEED TIMER to delay energizing
(see "HIGH SPEED INSPECTION" on page
pick.
(see "Y-D OPEN TRANSN. TIMER" on page 5-
(see "UP TO SPEED TIMER" on page
5-66).
5-54).