Electrical Connection; Bosch Voltage Stabilizer 1 687 022 873; Voltage Stabilizer (Commercially Available) - Bosch CRR 120 Instrucciones De Funcionamiento

Example 2
The Fig. 4 shows the test set-up with the required
components for mechanical measurement on Bosch
common-rail injectors with solenoid valve. The measur-
ing device connected to the CRR 120 applies a defined
measuring force (+/- 1 N) to the components to be
tested.
Fig. 4: Mechanical measurement on
Bosch common-rail injectors
1 Digital gauge CRR 420
2 Pneumatic control unit CRR 120
3 Fitting tool
4 Bosch solenoid valve injector
5 Measuring device
A Connection A
B Connection B
Robert Bosch GmbH
CRR 120 equipment | CRR 120 | 13
5.2

Electrical connection

Fig. 5: Electrical connection
1 CRR 120
2 CRR 220 (connection optional)
3 Voltage stabilizer (24 V DC / ≥ 20 A) e.g. Bosch 1 687 022 873
i
The illustration shows a schematic view of the elec-
trical connection of the CRR 120.
As an option, the CRR 220 can be connected as
well. To do this, refer to the instructions specific to
the device.
5.2.1 Bosch voltage stabilizer 1 687 022 873
1. Use washers and an M4 nut to attach connecting
cable 1 684 466 078 to the protective-conductor
(PE) connection.
2. Use an M6 screw, spring washer and nut to at-
tach connecting cables 1 684 466 077 and
1 684 466 078 to the 24-V connection (-).
3. Connect the banana jack (black) to connecting
cable 1 687 466 077.
4. Use an M5 screw, spring washer and nut to attach
connecting cable 1 684 466 083 to the 24-V con-
nection (+).
5. Connect the banana jack (red) to connecting cable
1 687 466 083.
6. Use the connection cables (red/black) to connect
the CRR 120 to the banana jacks (red/black) on the
voltage stabilizer.
7. Use the connection cable (yellow) to connect the
CRR 120 to the banana jack (black) on the voltage
stabilizer.
!
Do not operate the CRR 120 while the protective
conductor (PE) is not connected.
5.2.2

Voltage stabilizer (commercially available)

Use the connection cables (red/black/yellow) includ-
ed in the accessory set to connect the CRR 120 to
the voltage stabilizer as pictured.
!
Do not operate the CRR 120 while the protective
conductor (PE) is not connected.
en
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0 986 629 504 2020-08-24