Manitowoc 777 User Manual

Reference Only
OPERATING CONTROLS AND PROCEDURES 777 OPERATOR’S MANUAL
3-50 Published 10-01-12, Control # 044-05 v2
1. Handle command in percent from neutral (+ up, – down).
2. Pump command in percent from neutral (+ up, – down).
3. Measured pump pressure (up) in psi.
4. Measured cylinder pressure (up) in psi.
5. Port 0 count – right cylinder position (+ retract, – extend)
6. Port 1 count – left cylinder position (+ retract, – extend)
7. Boom valves:
1 = raise holding valve on
2 = lower holding valve on
3 = both holding valves on
4 = pump enable valve on
5 = pump enable valve and raise holding valve on
6 = pump enable valve and lower holding valve on
7 = pump enable valve and both holding valves on
Swing
1. Handle command in percent from neutral (+ right, – left)*.
2. Pump command in percent from neutral (+ right, – left).
3. Measured pump pressure swing right (port A) in psi.
4. Measured pump pressure swing left (port B) in psi.
Track
1. Right handle/pedal command in percent from neutral (+
forward, – backward)*.
2. Left handle/pedal command in percent from neutral (+ forward,
– backward)*.
3. Right pump command in percent from neutral (+ forward, –
backward).
4. Left pump command in percent from neutral (+ forward, –
backward).
5. Measured system pressure right track in psi.
6. Measured system pressure left track in psi.
7. Parking brake command (1 release, 0 engage).
*For certain operating conditions the handle command can be set to
neutral by the controller even if the handle is not in neutral.
A1 (Handles)
The variable control handle output voltage is represented in
the controller by a number between 0 (0 Volts) and 255 (10
Volts). Diagnostic screen A1 displays this number for each of
the control handles/pedals. The normal operating outputs of
the handles range from:
• approximately 38 (1.5 Volts) to 120 (4.7 Volts) for lower/
reverse/right**
• approximately 136 (5.3 Volts) to 215 (8.5 Volts) for raise/
forward/left**
**Some dual-axis handles (joysticks) are internally limited and will
not put out the full range stated here.
A switch opens when the handle is in the neutral range (4.7 –
5.3 volts). In the neutral range, the screen reads 0 (0 volts).
1.
Handle 1 – Front Drum.
2. Handle 2 – Rear Drum.
3. Handle 3 – Boom Hoist.
4. Handle 5 – Right Track.
5. Handle 6 – Left Track.
6. Handle 4 – Swing.
7. Handle 7 – Auxiliary Drum.
8. Pedal 1 – Right Track.
9. Pedal 2 – Left Track.
D1 and D2 (Digital Outputs and Inputs)
The status of the digital outputs from the controller and the
inputs to the controller is displayed in several banks in
screens D1 and D2. Each bank can indicate the state of up to
eight individual digital inputs or outputs.
Items 1 through 8 are bank numbers.
X = Corresponding digital screen number (1 or 2) appears.
Each individual input/output is assigned a number (identifier)
in the binary system (powers of two). The identifiers of all
inputs/outputs that are ON (active), are added to a total in
each bank. Thus, the number displayed for each bank is the
sum of all identifiers of the inputs/outputs that are ON (0 –
255). With this system, each possible ON/OFF combination
per bank has a unique total.
1
3
2
4
SWING
1
5
2
6
3
7
4
TRACK
1
6
2
7
3
8
4
9
5
A1
X
1
6
2
7
3
8
4 5
D

Manitowoc 777 Specifications

General

Brand	Manitowoc
Model	777
Category	Construction Equipment
Language	English