Edwards XDD1 115 V AC, Instruction Manual

Page: 25 / 48

Page 17
A746‐03‐885A ‐ Replacing the fuse on the circuit board (only XDD1 24V)
Notes regarding the motor speed
Operating the pump at high motor speeds increases the pump throughput, this will also cause
the pump to generate more heat. Ensure there is adequate ventilation especially when using
the pump within confined spaces or enclosures.
Operating the pump at low motor speeds increases the ultimate vacuum performance, this
will also increase the lifetime of the diaphragm and valves.
Table 8 Pin connections for 15 way D connector
Pin Number
Internal wire in
Control Line from
back of 15 way
D connector
Assignment Use
2 Black Control/monitor: 0 V signal
GND Signal
4 XDD1 identity (with TIC)
9 White Speed (0‐10 V) of
PWM: 5 V to max 24 V or
voltage input: 0V to 10 V DC
(max 24 V) (depending on the
control signal input for motor
speed) To Control motor
speed
8, 13, 14 Blue Electrical supply 0 V Use all 3 pins for
connection
1, 6, 11 Red Electrical supply 24 V Use all 3 pins for
connection