INFICON STM-100/MF Thin Film Deposition Monitor - Manual (Page 37)

I/O INTERFACE CONNECTION
This connector provides the user interface to the 4 sets of relay output
contacts as well as the 4 remote input command lines.
RELAY CONTACT RATINGS
2.5 AMPS - 120VAC MAX. - 120VA
Normally Open - SPST CONTACTS
I/O CONNECTOR DEFINITIONS
TYPE
15 Pin "D" Male
MATING CONNECTOR AMPHENOL 117-DA15S OR EQUIVALENT
FUNCTION PIN NUMBER
Crystal Fail 1, 2
Elapsed Timer 3, 4
Shutter Relay 5, 6
Thickness Setpoint 7, 8
Ground 13, 14, 15
Shutter Open 12
Shutter Close 11
Zero Thickness 10
Zero Timer 9
Ground 13, 14, 15
RELAY OUTPUTS
The STM-100 / MF is standard equipped with four SPST 2.5 AMP relays
rated to 120VAC and to 120VA. These contacts are normally open and become
active when their respective function is true. Continuous display of the status of
each relay is provided by legends on the LCD display. The available relay
functions are:
1. CRYSTAL FAIL - This relay provides a contact closure whenever the sensor
crystal fails to operate properly or has exceeded its operating range.
The LCD legend for this relay status is (XTAL FAIL). The legend will
also flash as a warning to the user.
2. ELAPSED TIMER - This relay provides a contact closure when the elapsed
timer has counted down to a value of zero from a setpoint value other
than zero. A setpoint value of zero disables this relay function. The
display will continue to count in an upward fashion after a count of
zero is reached. The relay contacts will remain closed until the front
panel ZERO button or a remote TIMER ZERO event occurs, or a new
timer number is entered. The LCD legend for this relay is (SP TIME).
SECTION 3.4
I/O Connector
RELAYS
INPUTS
Relay Outputs
Crystal Fail
Elapsed Timer
Page 3 - 3 INSTALLATION