Operation
16 300758785_002_C1 - 06/2019 - © Leybold
Table: Pin assignment X1
Customer plug (pro-
vided with pump)
SUB-D 9 (female)
ECODRY plus X1
SUB-D 9 (male)
Description Pin Pin Description Limits Function
1 1
Analog Frequency
Monitor output
0 … +10 Vdc (2 mA)
Analog signal proportional to cur-
rent rotation frequency
(10 V = 210 Hz)
2 2
Digital Input / Low
speed
low active input (ref. to Digital
Common)
Bridge to pin 4 for lower speed
(170 Hz),
open for full speed (210 Hz)
3 3
Voltage supply for
analog input
+10.5 V (max. 16 mA) Voltage supply for analog input A1
4 4 Digital Common
5 5
Digital Output
(Pump Status)
Optocoupler output open collec-
tor (supply by single resistor,
max. current 10 mA) (low active
ref. to optocoupler ground)
On: Frequency setting reached
Off: Frequency setting not reached
Jumper Pin 6
/ Pin 7: speed
control
deactivated
6 6
Analog Input
(Speed Control)
0 … +10 V
(20 kOhm)
Optional input, deactivated by
default*. Contact Leybold for
further information.
7 7 Analog Common
Jumper Pin 9
/ Pin 8: Run
Switch active
8 8 Digital Common
9 9
Digital Input /
RUN
low active input related to digi-
tal common
Bridge to pin 8 for RUN,
open for STOP
Hous-
ing
Hous-
ing
Pump housing,
PE
* When speed control is activated, operation is only possible if a voltage is applied between pins 6 and 7.
10 V correspond to maximum speed.
NOTICE: Do not apply external voltage to the digital input terminals because the internal optocouplers can be
damaged.
Do not exceed the stated voltage and current limits.
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