Danfoss VLT series Programming Guide

7.2.1.6 Controlword in Gear Mode
Table 7.17 shows the structure of the Controlword. Table 7.18 denes the values for the available synchronization modes (bits
5 and 6). Table 7.19 denes the values for bit 9 of the Controlword.
15 10 9 8 7 6 5 4 3 0
See Table 7.2
Master sync
direction
Reserved
(0)
See Table 7.2 Synchronization mode
Reserved
(0)
See Table 7.2
MSB LSB
Table 7.17 Controlword in Gear Mode
Bit 6 Bit 5 Denition
0 0 Synchronize shortest way.
0 1 Synchronize according to slow down mode.
1 0 Synchronize according to catch up mode.
1 1 Velocity-controlled synchronization (during gear in).
Table 7.18 Denition of Bits 5 and 6 (Synchronization Modes)
Bit Value Denition
9 0 Not relevant for synchronization mode 11;
For all other modes: Master start distance is in the positive direction of the guide value.
1 Not relevant for synchronization mode 11;
For all other modes: Master start distance is in the negative direction of the guide value.
Table 7.19 Denition of Bit 9
7.2.1.7 Controlword in ISD Inertia Measurement Mode
Table 7.17 shows the structure of the Controlword. A value of 1 in bit 4 starts the inertia measurement procedure. It must
remain high as long as the procedure is running, otherwise it is aborted. Table 7.21 denes the values for bits 4 and 8 of the
Controlword.
15
1
0
9 8 7 6 5 4 3 0
See Table 7.2 Reserved (0) Halt See Table 7.2 Reserved (0)
Measurement
start
See Table 7.2
MSB LSB
Table 7.20 Controlword in ISD Inertia Measurement Mode
Bit Value Denition
4 0 Do not start the measurement or stop an ongoing measurement.
1 Start measurement.
8 0 Enable bit 4.
1 Stop axis according to halt option code (see chapter 7.20.7 Parameter 50-47: Halt Option Code (0x605D)).
Table 7.21 Denition of Bits 4 and 8
7.2.1.8 Controlword in Cyclic Synchronous Position Mode
The operation mode-specic bits and the Halt bit in the Controlword are ignored by the servo drive. The Halt function is
controlled by the control device.
Servo Drive Parameter Descr...
VLT
®
Integrated Servo Drive ISD
®
510 System
236 Danfoss A/S © 01/2017 All rights reserved. MG36D102
77

Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)