Blodgett HV-100EM - Page 33

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Maintenance
Troubleshooting
TEST POINTS USING CONTROL DIAGNOSTIC OUTPUTS
KEY FAN CONTROL COMPONENTS
TEST POINTS TO RELAY BOARD
VOLTAGE
AC + DC
Black Lead Red Lead
Combi Fan Speed Gentle Forward (20 Hz) J2 9-12
See Chart Below
Terminal Block 4
Pin #4
24VDC
Fan Fan Speed Low Forward (30 Hz) J2 9-12
See Chart Below
Terminal Block 4
Pin #4
24VDC
Prog Fan Speed High Forward (40 Hz) J2 9-12
See Chart Below
Terminal Block 4
Pin #4
24VDC
1 Fan Speed Turbo Forward (50 Hz) J2 9-12
See Chart Below
Terminal Block 4
Pin #4
24VDC
4 Fan Speed High Reverse (-40 Hz) J2 9-12
See Chart Below
Terminal Block 4
Pin #4
24VDC
OUTPUT COMPONENTS J2.9 (BIT 0) J2.10 (BIT 1) J2.11 (FWD) J2.12 (REV)
Gentle Forward Outputs (20 Hz) 0v 0v 23Vdc Rtn 0v
Low Forward Outputs (30 Hz) 23Vdc Rtn 0v 23Vdc Rtn 0v
High Forward Outputs (40 Hz) 0v 23Vdc Rtn 23Vdc Rtn 0v
Turbo Forward Outputs (50 Hz) 23Vdc Rtn 23Vdc Rtn 23Vdc Rtn 0v
Gentle Reverse Outputs (-20Hz) 0v 0v 0v 23Vdc Rtn
Low Reverse Outputs (-30Hz) 23Vdc Rtn 0v 0v 23Vdc Rtn
High Reverse Outputs (-40Hz) 0v 23Vdc Rtn 0v 23Vdc Rtn
Turbo Reverse Outputs (-50Hz) 23Vdc Rtn 23Vdc Rtn 0v 23Vdc Rtn