![background image](http://html1.mh-extra.com/html/olympia/millennium-e/millennium-e_owners-manual_732546140.webp)
EnForcer™ SCR
Service Manual
I.B. 1561
26
SCR/DIODE BLOCK
WARNING: Faulty SCR/Diode Blocks may cause voltage to be present at the DC cables.
Physical Test
If you do not have a clamp-on meter to check for current in the 3 SCR/Diode Blocks, you can perform the following to
locate a fault in the secondary phase:
1) Start the charger, and run it for 5 minutes with a battery connected.
2) Turn off the charger and disconnect the battery.
3) Within 1 minute, check the temperature of the SCR/Diode Blocks. If an SCR/Diode Block is cold, then it is
defective.
WARNING: Heatsink and SCR/Diode Blocks may be very warm. Please exercise caution.
First SCR/Diode Block Test
Please follow these steps before testing the SCR/Diode Blocks:
Disconnect the battery.
Disconnect the AC power.
You will be testing the SCR/Diode Blocks to see whether there is continuity or forward leakage current (100K ohms or
less).
1) Disconnect the gate leads from SCR/Diode Blocks:
2) Remove the transformer-input connection to the SCR/Diode Block (anode).
3) Using an ohmmeter, set to its 1k scale, check for continuity between each SCR/diode Block (anode) input
connection and + bussbar. The ohmmeter should read infinity.
4) If continuity is shown, replace the SCR/diode Block.
5) If infinity (open) is measured in both directions, the SCR/Diode Block may be open. To prove the SCR/Diode
Block functions properly, you need to go to the next test (Second SCR/Diode Block Test) to check the gating
operation of the SCR/diode block.
Second SCR/Diode Block Test
Please follow these steps before testing the SCR/Diode Block:
Disconnect the battery.
Disconnect the AC power.
You can test a single SCR/Diode Block at a time. You will need a Flashlight tester or a Continuity tester with 2 AA
batteries in it to do this.
Please follow these steps:
1) Disconnect the three phase input wires to each of the SCR/Diode Blocks.
2) Disconnect the nylon connector from the SCR/Diode Block (gate drive).
Summary of Contents for Millennium-E
Page 1: ...Owner s Manual ...
Page 8: ...The Ultimate Ice Resurfacer ...
Page 96: ...The Ultimate Ice Resurfacer 88 8 9 10 11 12 13 14 18 15 16 17 ...
Page 100: ...The Ultimate Ice Resurfacer 92 ...
Page 101: ...The Ultimate Ice Resurfacer 93 ...
Page 105: ......
Page 106: ......
Page 107: ......
Page 108: ......
Page 109: ......
Page 110: ......
Page 115: ...I B 1561 Rev B Model ES3 EnForcer SCR Battery Charger Service Manual ...
Page 148: ...EnForcer SCR Service Manual I B 1561 34 ES3 REPLACEMENT PARTS SCHEMATICS ...
Page 156: ...EnForcer SCR Service Manual I B 1561 42 SCHEMATIC DIAGRAM ES3 ...
Page 157: ...EnForcer SCR Service Manual I B 1561 43 ES3 ASSEMBLY DRAWING ...
Page 159: ...EnForcer SCR Service Manual I B 1561 45 INTERIOR VIEWS ...
Page 160: ...EnForcer SCR Service Manual I B 1561 46 SINGLE EXTRUSION HEAT SINK ASSEMBLY ...
Page 162: ...EnForcer SCR Service Manual I B 1561 48 THREE EXTRUSION HEAT SINK ASSEMBLY ...
Page 164: ...EnForcer SCR Service Manual I B 1561 50 SUB ASSEMBLY PANEL ASSEMBLY ...
Page 167: ...EnForcer SCR Service Manual I B 1561 53 DOOR ASSEMBLY ...
Page 168: ...EnForcer SCR Service Manual I B 1561 54 PARALLEL CABLES OPTIONAL ...
Page 169: ...EnForcer SCR Service Manual I B 1561 55 DISCONNECT SWITCH OPTIONAL ...
Page 170: ...EnForcer SCR Service Manual I B 1561 56 CABINET ASSEMBLY ...
Page 171: ...EnForcer SCR Service Manual I B 1561 57 CABINET ASSEMBLY EXPLODED VIEW ...
Page 174: ...EnForcer SCR Service Manual I B 1561 60 SCHEMATIC DIAGRAM ...
Page 175: ...EnForcer SCR Service Manual I B 1561 62 ES3 LARGE CABINET ASSEMBLY DRAWINGS ...
Page 176: ...EnForcer SCR Service Manual I B 1561 63 CHARGER INTERIOR VIEW ...
Page 177: ...EnForcer SCR Service Manual I B 1561 64 TRANSFORMER CONNECTIONS ...
Page 178: ...EnForcer SCR Service Manual I B 1561 65 HEAT SINK ASSEMBLY ...
Page 179: ...EnForcer SCR Service Manual I B 1561 66 HEAT SINK ASSEMBLY CON T ...
Page 180: ...EnForcer SCR Service Manual I B 1561 67 SUB ASSEMBLY PANELS ...
Page 181: ...EnForcer SCR Service Manual I B 1561 68 CABINET ASSEMBLY ...
Page 182: ...EnForcer SCR Service Manual I B 1561 69 CABINET ASSEMBLY CON T ...
Page 183: ......
Page 184: ......
Page 185: ......
Page 186: ......
Page 187: ......
Page 188: ......
Page 189: ......
Page 190: ......
Page 191: ......
Page 192: ......
Page 193: ......
Page 194: ......
Page 195: ......
Page 196: ......
Page 197: ......