Service manual

The following pictures are intended to be helpful in the procedure for
correcting a malfunction of the E-Stop System.
1. Check the 24VDC at F1A, page 25, Figure 4, if no value check DC
power supply.
2. Check for blown fuse (F2A, 100ma SB, loop string) if blown, check for
a shorted interlock which may be grounded. (wire touching a ground
point)
3. Measure interlock loop resistance on the following terminal block
numbers:
Feeder: 205 to 208 = 2 ohms or lower
206 to 207 = 2 ohms or lower
Folder: 305 to 308 = 2 ohms or lower
306 to 307 = 2 ohms or lower
Conveyor 405 to 408 = 2 ohms or lower
406 to 407 = 2 ohms or lower
Inserter: 501 to 504 = 2 ohms or lower
Any open resistance means interlock contact not made by covers and
doors. Could also be a bad interlock.
If all interlock resistance check out, check and reset circuit.
E-Stop: 101 to 104 = 5 ohms or lower
102 to 103 = 5 ohms or lower
Reset: 105 to 108 = 5 ohms or lower
106 to 107 = 5 ohms or lower
PROBLEM ANALYSIS
420T V6LT OPERATOR & SERVICE MANUAL ISSUE 2009/06 Rev. 6/21/2011 SECTION C – PAGE 109
071-33370-400
Gate Module & E-Stop Terminals (E-Stop Term Blk 1)
Close-up of E-Stop Terminals (E-Stop Term Blk 2)