Figure 9.1 - D-C Bus Voltage Terminals (1-25 Hp Drives) - Reliance electric GV3000 Instruction Manual

For 100-150HP drives, while standing on a non-conductive surface and wearing insulated
gloves (600V), removethe top two screwsof the regulator panel and tilt the panel forward.
See figure 9.4. Measure the D-C bus potential at the bottom of the fuse holders on the
Power Module Interface board on the backof the regulator panel. Take care not to touch
any conductive traces. Re-attach the regulator panel.
Step 5. Once the drive has been serviced, re-attach the drive's cover.
Step 6. Re-apply input power.
1-10 HP
> -B S|] BH] |S BH] -@ S|] >
+ _— + —
R/L1 S/L2 T/L3 10V. 10 COM U/T1 V/T2.~ W/T3
AC POWER
DC BUS
MOTOR LEADS
INPUT LEADS VOLTS
1O-25 HP
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[o]/ |fol) lol} jlel} jlel} lel} jlel} jt
@| |@| |e] |e] |e] |o| |oa| |e
U/T1 V/T2 W/T3 + - R/L1 S/L2 T/L3
MOTOR LEADS DC BUS AC POWER
VOLTS INPUT LEADS
Figure 9.1 - D-C Bus Voltage Terminals (1-25 HP Drives)