Technical Manual
FT420
– Iss 2.4
73
Module
Feature
Multimeter Probe +
Multimeter Probe -
Expected Resistance
Range (Ohm)
Result
Optional Supervised
output 2
TB2
– 3, O+
TB2
– 4, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 4, O-
TB2
– 3, O+
24V output: 40K
– 54K
Optional Supervised
output 3
TB2
– 5, O+
TB2
– 6, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 6, O-
TB2
– 5, O+
24V output: 40K
– 54K
Optional Supervised
output 4
TB2
– 7, O+
TB2
– 8, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 8, O+
TB2
– 7, O+
24V output: 40K
– 54K
Optional
Supervised
output
Expansion
Board 4
Optional Supervised
output 1
TB2
– 1, O+
TB2
– 2, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 2, O-
TB2
– 1, O+
24V output: 40K
– 54K
Optional Supervised
output 2
TB2
– 3, O+
TB2
– 4, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 4, O-
TB2
– 3, O+
24V output: 40K
– 54K
Optional Supervised
output 3
TB2
– 5, O+
TB2
– 6, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 6, O-
TB2
– 5, O+
24V output: 40K
– 54K
Optional Supervised
output 4
TB2
– 7, O+
TB2
– 8, O-
Speaker: 40K
– 54K
24V output: > 14
TB2
– 8, O-
TB2
– 7, O+
24V output: 40K
– 54K
Table 44 Pre-Commissioning Battery Voltage Measurement Record
Battery
Multimeter Probe +
Multimeter Probe -
Expected Voltage
Multimeter Readings (V)
Battery 1
B
Battery -
> 10.5V
Battery 2
B
Battery -
> 10.5V
Battery 3 (If any)
B
Battery -
> 10.5V
Battery 4 (If any)
B
Battery -
> 10.5V
Table 45 Power ON AC/DC Power Supply Calibration Record
Multimeter Probe +
Multimeter Probe -
Expected
Voltage
Measured Voltage
(V)
Calibrated
Voltage (V)
TB1
– 3 of the battery
charger current limiting
board (B)
TB1
– 4 of the battery
charger current limiting
board (Battery -)
27.0V
– 27.6V