Pre-Operation Checklist
Check of Electrical Items
CAUTION:
AFTER COMPLETING THE INSTALLATION STEPS AND BEFORE APPLYING
LINE POWER TO THE SYSTEM, DOUBLE CHECK THE FOLLOWING ITEMS:
1.
Verify AC line voltage at source matches control rating.
2.
Inspect all power terminations for accuracy, workmanship and tightness.
3.
Verify control and motor are grounded to each other and the control is connected to earth
ground.
4.
Check all signal wiring for accuracy.
5.
Be certain all brake coils, contactors and relay coils have noise suppression. This should be
an R-C filter for AC coils and reverse polarity diodes for DC coils. MOV type transient
suppression is not adequate.
WARNING: MAKE SURE THAT UNEXPECTED OPERATION OF THE MOTOR SHAFT
DURING START-UP WILL NOT CAUSE INJURY TO PERSONNEL OF
DAMAGE TO EQUIPMENT.
Check of Motors and Couplings
1.
Verify freedom of motion for all motor shafts and that all motor couplings are tight without
backlash.
2.
Verify the holding brakes if any, are properly adjusted to fully release and set to the desired
torque value.
Temporary Application of Power
1.
Double check electrical and mechanical connections before applying power to the control.
2.
Verify that any Enable inputs to J1-8 are open.
3.
Temporarily apply power and observe that the display is on. If this indication does not occur,
double check all connections and verify input voltage. If fault indication occurs, refer to the
fault table in Section 4 of this manual.
2-41
INSTALLATION
MN723H-10/95 11/28/95 1:11 AM Page 53 (Black plate)
Summary of Contents for 23H Series
Page 11: ...1 8 GENERAL INFORMATION MN723H 10 95 11 28 95 1 07 AM Page 12 Black plate...
Page 83: ...3 30 KEYPAD PROGRAMMING AND OPERATION MN723H 10 95 11 28 95 1 13 AM Page 84 Black plate...
Page 99: ...4 16 DIAGNOSTIC INFO AND TROUBLESHOOTING MN723H 10 95 11 28 95 1 14 AM Page 100 Black plate...
Page 125: ...5 26 APPENDIX G MN723H 10 95 11 28 95 1 21 AM Page 126 Black plate...
Page 126: ...MN723H 10 95 11 28 95 1 21 AM Page 127 Black plate...
