Specifications

Maintenance
32
Troubleshooting
TEST POINTS USING CONTROL DIAGNOSTIC OUTPUTS
Key
Fan Control Components
Test Points to Relay Board Voltage
AC+DC
Key Fan Control Components
Black Lead Red Lead
AC + DC
Combi Fan Speed Gentle Forward (20 Hz) J2 9Ć12 See Chart
Below
Terminal Block 4
Pin #4
24VDC
Fan Fan Speed Low Forward (30 Hz) J2 9Ć12 See Chart
Below
Terminal Block 4
Pin #4
24VDC
Prog Fan Speed High Forward (40 Hz) J2 9Ć12 See Chart
Below
Terminal Block 4
Pin #4
24VDC
1 Fan Speed Turbo Forward (50 Hz) J2 9Ć12 See Chart
Below
Terminal Block 4
Pin #4
24VDC
4 Fan Speed High Reverse (Ć40 Hz) J2 9Ć12 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 (Ć20Hz) 0v 0v 0v 23Vdc Rtn
Low Reverse Outputs (Ć30Hz) 23Vdc Rtn 0v 0v 23Vdc Rtn
High Reverse Outputs (Ć40Hz) 0v 23Vdc Rtn 0v 23Vdc Rtn
Turbo Reverse Outputs (Ć50Hz) 23Vdc Rtn 23Vdc Rtn 0v 23Vdc Rtn