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The solenoids are connected at terminal 22bdz (port A), terminal 28bdz (port B), terminal 24bdz (port
D) and 30bdz (port C). The terminals bdz are bridged on the amplifier. We recommend using all three
terminals.
Terminal 18d is the digital output of GND. This terminal is used as a point of reference for the serial
interface.
When using digital set values (S1.01 to S1.04 and S1.08) the recommendations in chapter “Digital Set
Values” on page 37 need to be considered. If the digital set values are not used, the terminals 8z, 4d,
6d, 6z, 2b, 4z and 2z have not been connected. Enable signal (18d) must be energized in SP control
mode.
When using analog set values, the recommendations in chapter “Analog Set Values” on page 37 need
to be considered. Analog set values can be activated by:
1. using a potentiometer (Set value S1.05, terminals 12z, 20z and 20d),
2. using an external voltage source
±
10 V (Set value 1.06, terminals 12d and 16d) or
3. using an external current source 4...20 mA (Set value S1.07, terminals 16z and 26z).
The swash plate sensor power supply is terminals 20z (+10 V to pin 1 of sensor) and 26z (analog
GND to pin 3 of sensor). The actual value (pin 2 on sensor) should be connected to terminal 10d of
the card holder.
Installation of Electronic Card
After correctly wiring the card, insert it carefully in the card holder. After switching on the power and
the enable signal, the power supply LED (PW) and the enable LED (EN) for should flash.
Verification of Parameters
Before using the electronic card and swash plate pump, compare the controller parameters C1.00 to
C1.26 and the extended parameters E00 to E20 to the values in Table 5 and Table 6. Correct any
differences in the parameters according to the table.
Switching on the Pump
Before switching on the pump, make certain that all hydraulic connections to the pump have free
conjunction with the tank. There should not be a closed valve, ball valve or other device between the
pump outlet port and the tank to prevent unallowable pressure during commissioning.
The set value of the pump is adjusted to zero first. If the pump is tilted out to maximum displacement
change the sign of the set value (C1.12) or change the solenoid connections.
Adjustment of Zero Point on Swash Plate Angle Sensor
During assembly and testing of the pump, the swash plate sensor neutral is calibrated to the zero
position (displacement and flow equal zero) of the pump. If mechanically loaded or remounted, the
swash plate sensor can lose its zero position. If this occurs it may be necessary to readjust the neutral
position of the swash plate sensor.
The actual value of the swash plate sensor can be observed by displaying parameter D1.11. If the
actual value D1.11 is more than 1V and the pump is tilted to its zero position, it is recommended that
the sensor be readjusted. If the actual value D1.11 is less than 1V, the zero position can also be
adjusted by the offset parameter C1.11.