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EnForcer™ SCR
Service Manual
I.B. 1561
27
3) Connect the negative potential of your tester to the positive buss bar.
4) Connect the positive potential of your tester to the input connection of the SCR/Diode Block under test. Then by
using a jumper wire touch the SCR/Diode Block gate pin (white lead connects there) to the SCR/Diode Block
input connection. The tester will light.
NOTE: If your tester lights before connecting to the SCR/Diode Block input, then the SCR/Diode Block is
defective. Test one SCR/Diode Block at a time to find the faulty one(s).
5) Disconnect the jumper wire to the SCR/Diode Block gate pin. The tester should remain lit.
6) The SCR/Diode Block is defective if the tester did not remain lit.
DIODE TEST
Please follow these steps before testing the diode:
Disconnect the battery.
Disconnect the AC power.
You will be testing the diode to see if it is shorted.
1) Disconnect the three phase input wires to the SCR/Diode Blocks.
2) Use an analog meter set to its X1 scale, or use a DVM set to its diode scale.
3) Connect the meter’s negative lead to the input connection of the SCR/Diode Block.
4) Connect the meter’s positive lead to the (-) buss bar.
5) If you are using an analog meter, it should read close to 0 ohms.
6) If you are using a DVM, it should read a .7V drop on the diode scale.
7) Reverse the wires on the meter.
8) The needle should not move on the analog scale (measurement of infinity). The DVM should not get a reading.
9) The SCR/Diode Block is shorted if the meter measures zero current for both directions (polarities).
10) The SCR/Diode Block is open if the meter reads infinity for both directions (polarities).
AC AND DC FUSES
Please follow these steps before testing the fuses:
Disconnect the battery.
Disconnect the AC power.
You will be testing each fuse to see whether there is continuity across it.
1) Using an ohmmeter, set to its X1 scale, test each fuse.
2) If a fuse tests as an open circuit (infinity), replace it.
3) If there is continuity across the fuse (less than 1 ohm), it is working properly.
PRINTED CIRCUIT BOARD FUSES AND VOLTAGES
Measure the voltages on the bottom terminals of the circuit board fuses with the charger AC power connected
and the battery disconnected.
Measurement
Expected voltage (VAC)
F5-F8
10 ± 10%
F6-F8
10 ± 10%
F7-F8
10 ± 10%
Please note that these voltages are dependent on the line voltage.
PRINTED CIRCUIT BOARD
The printed circuit board is not field calibrated. No pots or jumpers are contained on the control board. In order to verify
proper operation, insure that all
USER
and
SERVICE
parameters are set properly, especially the charger/battery cell size
and amp hour ratings. Please follow these steps before testing the PC Board:
Set correct control board battery and charger cell size and amp hour ratings in
USER/SERVICE
parameters.
1) Connect appropriate size battery to charger. Battery terminal voltage should be at around 2 volts/cell.
2) Charger should detect battery and start a charge cycle. If charger does not respond, check wiring and ensure that
DC battery voltage is being read at the control board..
3) Faulty control boards cannot be field modified. Replace faulty control boards and return to factory for evaluation.
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 ...
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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 ...
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