4/6
B 00
GB 02872 - Edition 03 - Oct 13
Safety instructions
Safety interlock.
The pump motor is protected against overload through the drive «start/stop»
and enable control circuitry of the variable speed controller. The drive start/
stop includes solid state components. If hazards due to accidental contact
with moving machinery or unintentional flow or liquid, gas or solids exist,
an additional hardwired stop circuit is required to remove AC input power
to the drive.
The response for loss of purge flow and lost of secondary exhaust should
place the point of hazard area in a safe-state.
This interlock must never be overridden during installation, use or
maintenance.
Once activated power will be switch off and the pump will be put in a safe
condition. When a fault occurs, the cause must be corrected before the fault
can be cleared. It is required to switch power off and on to clear the fault.
Manufacturer has no control over the types of gases passing through this
pump. Frequently, process gases are toxic, flammable, corrosive, explosive
or otherwise reactive. Since these gases can cause serious injury or death, it
is very important to plumb the exhaust of the pump to the facility’s hazardous
gas exhaust system which incorporates appropriates filters, scrubbers, etc.,
to insure that the exhaust meets all air regulation.
General (continued)
Check that the pump is correctly connected to the equipment
B 60
.
The pump is equipped with an emergency off (EMO) circuit.
When activated, it places the equipment into a safe shutdown condition.
For external use, one EMO dry contacts are provided on J1 «emergency
stop» connector pins 1 and 4
B 100
.
The pump EMO can also be externally monitored
A 50
through J1
«emergency stop» connector pins 2 and 3
B 100
.
The EMO circuit consists of electromechanical components, and resetting it
will not re-energize the pump.
adixen Vacuum Products - Operating instructions - A3P Series
