Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 30)

30
In the following procedures, changing the equipment
between drive mode and bypass mode is required.
Be familiar with the operation of these devices in both
modes prior to start up.
Drive Power Up
E
quipmEnt
H
azard
!
d
rivE and option panEls contain dangErous voltagEs
wHEn connEctEd to linE voltagE
. i
nstallation
,
start
-
up
and maintEnancE sHould bE pErformEd only by qualifiEd
pErsonnEl
. f
ailurE to pErform installation
,
start
-
up and
maintEnancE by qualifiEd pErsonnEl only could rEsult in
dEatH or sErious injury
.
1. Perform pre-start up procedure.
2. Ensure that all operator devices are in OFF
position. Panel door(s) closed.
3. Keep main disconnect switch in OFF
position. Apply voltage to unit. DO NOT
operate drive or bypass at this time.
4. Confirm input line voltage is balanced within
3%. If not, correct input voltage imbalance
before proceeding. Repeat procedure after
voltage correction, when applicable.
5. Identify master drive in multi-unit
configurations.
6. Confirm wiring matches installation diagram
supplied with unit.
7. Ensure sensor wiring matches installation
application.
8. Turn main panel disconnect into ON
position.
9. Turn main disconnect on Master drive to ON
position.
10. Turn main disconnect on Follower drive(s) to
ON position.
Start Up Procedure
WARNING !