Pfeiffer Vacuum CENTERONE Instructions D'installation page 10

Installation
CONTROL terminal
(CenterTwo / Center-
Three)
10
Pin Signal
Error signal
9
10
11
Switch function 2
12
13
14
15 GND = housing
1) 300 mA fuse protection with a PTC element, self-resetting after the CenterOne is switched off or
the CONTROL connector is removed. Meets the requirements for grounded protective extra-low
voltage.
2) The variation between the analog output (pin 1) and the display on the device is a maximum of +/-
20 mV.
Fig. 12: Sub-D connector
This terminal contains:
● analog outputs for the signals from the individual measuring channels,
● logger output. This is a programmable analog output which can be assigned to any
measuring channel.
● HV-EMI. The high-vacuum measuring circuit for the PTR 225 transmitter can be
switched on and off here (On = +24 V / Off = 0 V).
Dangerous contact voltage
Voltages above 30 V AC or 60 V DC are deemed to be dangerous in the event of contact
in accordance with EN 61010.
 Only apply a grounded protective extra-low voltage (PELV).
 Connect peripheral components with a shielded connecting cable (electromagnetic
compatibility) to the CONTROL terminal on the back of the device.
Connector pin arrangement
The pins on the 9-pin sub-D connector are assigned as follows:
Pin Signal
1 Analog output 1 (-5 ... +13 V DC)
2 Analog output 3 (-5 ... +13 V DC)
3 Shield GND
4 HV_EMI 3
5 HV_EMI 1
6 Analog output 2 (-5 ... +13 V DC)
7 Logger output (0 ... +10 V DC)
8 Shield GND
9 HV_EMI 2
1) The variation between the analog outputs (pins 1, 2, 6) and the display on the device is a maximum
of +/- 20 mV.
No error
Pressure higher than
threshold or device
switched off
DANGER
1)
1)
1)
Error or device
switched off
Pressure lower than
threshold