Nidec SI-Encoder V2 User Manual page 17

Safety information Introduction
mm.035 Supply Voltage
Minimum 5 V (0)
Decimal places 0
Type 8 Bit User Save
Value Text
0 5 V
1 8 V
2 15 V
This parameter sets the level for the encoder power supply output voltage on terminal 5. To ensure that the maximum voltage for the position
feedback device is not accidentally exceeded, the device should be disconnected from the module when the level is being adjusted.
If the output voltage is set to greater than 5 V and the signals from the encoder are also greater than 5V then the input terminations should be
disabled, by setting Termination Select (mm.039) to 0, to prevent PSU Overload (102) trips or overloading of the termination resistors. If standby
mode is enabled in the drive, i.e. Standby Mode Enable (06.060) = 1 and the appropriate mask bit set in Standby Mode Mask (06.061), the power
supply output is turned off when standby mode becomes active.
mm.038 Device Type
Minimum AB (0)
Decimal places 0
Type 8 Bit User Save
Value Text
0 AB
1 SMART-ABS
2 Sankyo
This parameter should be set up to match the device connected to the option module. If Auto-configuration Select (mm.041) = Full (1) an attempt will
be made to automatically detect the encoder that is connected to this option module. See Auto-configuration Select (mm.041) for more details.
NOTE
If this option module is fitted to a general purpose drive it can only be used with an AB type encoder. If a SMART-ABS or Sanko encoder is selected
then a Compatibility (117) trip is initiated and the interface for an AB type encoder will remain active.
AB
This is an incremental encoder, and only the A and B quadrature signals can be connected. The position is zero at power-up (or encoder re-
initialisation) and accumulates the change of position from that point on, and so the position is incremental and not absolute. These devices are
suitable for motor control in RFC-A mode. They can also be used for RFC-S mode, but some form of phasing auto-tune is required each time the
position feedback is initialised.
SMART-ABS
This setting should be used for both Tamagawa SMART-ABS and SMART-INC encoders. SMART-ABS encoders use digital communications to
provide absolute multi-turn position feedback using a back-up battery to retain the turns information. SMART-INC encoders operate in the same way,
but do not use battery back-up and only provide absolute position within one turn. These encoders use an identification byte (ENID) so that the option
module can automatically detect which device is connected during auto-configuration. The table below gives the identification bytes that can be
recognised and the format of the device.
ENID Type
0x06 SMART-INC
0x17 SMART-ABS
0x00 SMART-INC
0x11 SMART-ABS
For these encoders to function correctly Additional Configuration (mm.074) must be set up to indicate if the encoder is single or multi-turn, and to give
the position padding related to the resolution. If Auto-configuration Select (mm.041) is left at its default value of Full (1) or set to Partial (2) then this
parameter is set-up automatically for a supported device on power-up and each time the device is re-initialised when one of the supported devices is
connected.
Sankyo
Sankyo AP05001 communication encoder provides absolute multi-turn position feedback using battery back-up to retain the turns information. The
ENID value for this device is 0x00. Additional Configuration (mm.074) must be set up to indicate this is a multi-turn device, and to give the position
padding related to the resolution. If Auto-configuration Select (mm.041) is left at its default value of Full (1) or set to Partial (2) then this parameter is
set-up automatically if an AP05001 encoder is connected on power-up and each time the device is re-initialised.
SI-Encoder V2 User Guide
Mechanical Installation Electrical Installation
Maximum 15 V (2)
Units
Display format Standard
Maximum Sankyo (2)
Units
Display format Standard
Turns
Single
16
Single
16
Getting Started Parameters
Default
Update rate
Coding
Default
Update rate
Coding
Resolution within a turn
23
23
17
17
Diagnostics
5 V (0)
Background read
RW, TE
AB (0)
Background read
RW, TE
Example devices
TS5700N8401
TS5711N240
17