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SECTION 34 - DIAGNOSTICS AND TROUBLESHOOTING
RTD INPUTS
The voltage level of each RTD at the indicated input
terminals is displayed as X.XX VDC. An LED illumi-
nates to indicate an open RTD. All inputs are 100 Ohm
RTD's.
TB6-1,3
Motor Winding Phase
A1 Temperature
TB6-4,6
Motor Winding Phase
A2 Temperature
TB6-7,9
Motor Winding Phase B1
Temperature
TB6-10,12 Motor Winding Phase B2
Temperature
TB5-1,3
Motor Winding Phase C1
Temperature
TB5-4,6
Motor Winding Phase C2
Temperature
TB5-7,9
Motor Bearing Opposite
Shaft End Temperature
TB5-10,12 Motor Bearing Shaft End
Temperature
Digital inputs
The state of each Digital Input is depicted by an LED.
TB7 accepts +5 VDC inputs. TB8 accepts 24 VAC or
DC inputs. When the input is high (24 VAC/DC or +5
VDC), the LED is illuminated. Otherwise, it is extin-
guished.
TB7-5
Motor Cooling Coil Leak
Detector (low voltage optical)
TB7-2
Not used
TB8-5,6
Motor Cooling Coil
Leak Detector (float switch)
TB8-2,3
Not used
310
MODBUS COMMUNICATION COUNTERS
The following error counts are displayed. Pressing the
RESET COUNTERS key resets them to zero.
• ID Faults
• Checksum Errors
• Error Packets
• Timeout Faults
PROGRAMMABLE
Change Gain
Access Level Required: ADMIN
This key can be used to change the input gain of the
accelerometer vibration inputs. This key is only shown
when Microboard switch SW1-3 is set to ON. Pro-
grammable as 1:1, 11:1 or 21:1. Gain of individual
inputs cannot be changed. When any one is changed,
they are all changed to the same value.
1. Begin with Microboard switch SW1-3 in the OFF
position.
2. Login at VIEW access level.
3. Place Microboard switch SW1-3 in the ON posi-
tion.
4. After reboot, on DIAGNOSTICS LOGIN Screen,
login at ADMIN access level.
5. Press CHANGE VIBRATION key. A green box
appears around the first Vibration Input Gain
setpoint.
6. Press ENTER () key. A dialog box appears with
the range of allowed values.
7. Use ◄ and ► keys to select desired value.
8. Press ENTER () key.
9. Press CANCEL (X) key to exit.
JCI COMPANY CONFIDENTIAL
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
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