Edwards iTIM E73/A1/T1 - Outputs

D374-20-880 Issue E
Page 14 © Edwards Limited 2007. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Parallel Interface Operation
4.3 Outputs
The parallel interface has 11 outputs; use these to monitor the status of the dry pumping system, as shown in Table 5.
In Table 5, the terms ‘set’ and ‘reset’ are used as follows:
z ‘Set’ means that the output relay is closed (short circuit).
z ‘Reset’ means that the output relay is open (open circuit).
Table 5 - Parallel Interface Outputs
Input Pins Function Use
1
Contact Output
E73 - 7 & 15 Remote /
Local Control
Status
If the output is set, the iTIM may control the pumping system.
2
Contact Output
E73 - 3 & 11 Dry pump
running status
If the output is set, the dry pump is on.
3
Contact Output
E73 - 4 & 12 Booster
running status
If the output is set, the booster pump is on.
4
Contact Output
A1 - 3 & 4
T1 - 8 & 20
L1 - 2 & 15
MCM - 3 & 4
Both pumps
running status
If the output is set, the both pumps are on.
If no booster pump is fitted, the output is set when the dry
pump is on.
5
Contact Output
A1 - 13 & 14 Final Valve
Signal
If the output is set, then the pumps are running and no gas
purge flow warning exists.
6
Contact Output
A1 - 7 & 8
T1 - 9 & 21
E73 - 5 & 13
MCM - 7 & 8
General
Warning
The signal will be set if no warning exists for any of the
configured parameters listed in the ‘alerts to tool’
configuration (object 135). The default parameters are:
Dry pump current (3)
Dry pump power (4)
Exhaust pressure (39)
Dry pump motor temperature (55)
Dry pump body temperature (57)
Gate valve not closed (152)
Gate valve not opened (153)
7
Contact Output
A1 - 11 & 12
T1 - 11 & 23
MCM - 11 & 12
Gas flow
warning
If the output is set, no gas purge flow warning condition
exists.
8
Contact Output
L1 - 3 & 16 LAM Warning If the output is set, no general or gas flow warnings exsist.
9
Contact Output
T1 - 13 & 25 Exhaust
pressure
warning
If the output is set, no exhaust pressure warning condition
exists.
10
Contact Output
T1 - 12 & 24 Water flow
warning
If the output is set, there is sufficient cooling water flowing
through the pumping system.