PLATE AS 5568097 - Caterpillar

Shielded Wiring
Shielded wiring is generally not required. The use of cable with individually shielded-twisted pairs is only required where indicated by the control wiring diagrams (Figure 2-1). However, some users may elect to run shielded wires for some I/O signals. Cable shields must be terminated as indicated in the control wiring diagram using the installation notes described below. DO NOT attempt to directly ground the shield at both ends since an undesired ground loop condition may occur. The TecJet 52 CAN shield connection pin is grounded through a high frequency capacitor (not directly grounded) and must be grounded in the wiring harness.Installation Notes* Wires exposed beyond the shield should be as short as possible, not exceeding 50 mm (2 inches).* The shield termination wire (or drain wire) should be kept as short as possible, not exceeding 50 mm (2 inches), and where possible the diameter should be maximized.* Installations with severe electromagnetic interference (EMI) may require additional shielding precautions. Contact Woodward for more information.Failure to provide shielding can produce future conditions which are difficult to diagnose. Proper shielding, when provided, at the time of installation is recommended to assure satisfactory operation of the product.Earth Ground
Ground Lug = Earth GroundIn order to ensure CE compliance, the connection to the earth ground needs to meet the following requirements. First, the connection must be less than 183 cm (6 ft) in length. Second, the wire that is used must be at least 3.3 mm2 (12 AWG) in size.
Figure 2-1. TecJet 52 Wiring Diagram Supply Voltage
W = Power-In (+)Z = Power-In (-)The supply voltage during normal operation must be 18 to 32 V, measured at the TecJet 52 connector. Steady state input current can reach 1.0 A, and transient input current may reach up to 4 A. The recommended power supply cable size is at least 1.3 mm2 or 16 AWG. The power supply wiring must be fused outside of the valve. The recommended fuse is a 6 A slow blow fuse.Recommended maximum wire length from power source to TecJet 52 based on a 24 V Power Supply: 2 51 m (167 ft) using 16 AWG (1.3mm stranded wire.Keyswitch Input
F = KeyswitchThe keyswitch input is used to switch the TecJet 52 in and out of the run state. A high signal (connected to AUX. Power Out) will allow the valve to operated in a normal mode, and a low signal (connected to supply [-] or open connection) will force the valve to minimum position (if possible) and then into a low power state. When the keyswitch input goes low, the valve will disable the driver circuitry after the software has gone through a shutdown procedure.PWM Input
K = PWM input (+)L = PWM input (-)The PMW input is configurable as the mass flow demand. The PMW input is designed for use with a push-type driver.
Figure 2-2. TecJet 52 PMW WiringCAN ID Inputs
H = CAN ID 1G = CAN ID 2J = Discreet/RS232 CommonThe CAN ID inputs are used to select which CAN identifiers