6.1.5 Restart the pump aer a con
trolled stop or automac shut down
Note:
If the sys
tem has automacally shut down because of high pump power, check that the
pump is free to rotate before restarng the system. Contact your supplier.
If the controlled stop buon on the front panel has been used to shut down the system,
reset the controlled stop buon before restarng the system. Turn the controlled stop
buon to reset it, then restart the system as described in Start-up on page 59 .
If the system has been automacally shut down because of an alarm condion, the
alarm condion must be corrected before restarng the system. Restart the system as
described in Start-up on page 59.
6.2 Shut down
WARNING: SYSTEM CONTROL MODULE
Risk of injury or damag
e to equipment. If the system is shut down and is not isolated
from the electrical supply, do not disconnect the Pump Display Terminal. Do not
release control from the Pump Display Terminal or front panel. This can result in the
system being started by another module.
WARNING: ROTATING PARTS
Risk of injury. Do not remove the inlet connecons unl the pump stops and the
power and N
2
supply has been isolated. The pump can take up to three minutes to
completely stop.
CAUTION: CONDENSIBLE BYPRODUCTS
Risk of damag
e t
o equipment. If the pump is stopped without the nitrogen purge
cycle (for example by using the EMS buon) on processes that have condensible or
solid byproducts the pump will possibly not restart.
The pump can only be stopped through the module in control of the pump. The pump
can be shut down by one of:
▪ The MicroTIM
▪ The PDT
▪ The front panel controls
Note:
The EMS buon will always s
t
op the pump. It does not maer which item has
control. Refer to Controlled stop on page 63
If the pump is not required for some me, switch o the electrical supply and the
cooling water supply.
10/2020 - ©Edwards Limited
Page 62M56635880_D
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