Zepro Z 1500 Technical Manual page 26

Control cards
Right next to the control device input block, there is a single LED and a strip with ten LED's. The single LED is
the status light for the input fuse. Unlit LED means a short circuit or that the card is switched off. Lit LED means
that there is voltage to the ouput section.
The LED strip indicates that the card is receiving a signal from a sensor and/or a control device. Each function
has its own dedicated LED on the strip. Sensors S2 through S4 have their own dedicated LED's as well while S5
and S1 are grouped together into one LED.
2.2.6 Card configuration
The card configuration block is a block with three switches that determines the configuration of the card. For
the Z 1500/2000 tail lift family, only the 000 configuration is used which means that all three switches are in
their OFF position as shown below.
2.2.7 Outputs
The output section is used for power delivery to the solenoid and the coils that control the valves and thereby
the motion of the tail lift. The output block consists of 22 pins in total split into 2 rows. The top row consists
of 11 ground points used for the coils and the solenoid. Four of these pins are interconnected in two pairs for
cases where two coils need the same signal. The bottom row consists of 11 pins for power delivery to the
coils, solenoid and in some cases warning lights. On the right side of the output block there is a square white
quick connector that is sometimes used for output to U0 through U3 instead of the output pins on the output
block. To the right of the output block there is a single LED used for output fuse status indication. It lights up
green when there is voltage to outputs. Unlit LED means a short circuit or that the relay card is switched off.
To the left of the output block there is a LED strip with 10 LED's used for active output indication. The bottom
LED lights up when the control card is powered. It should stay lit constantly during normal operation. The top
9 LED's are used to indicate active output with each output having its own dedicated LED.
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