Resolver (RW) Module (RMC150)

See the Resolver (R) module for standard resolver interface specifications. The Resolver (RW) module described in this topic is for a specific resolver configuration.

Two Control Outputs and Two Resolver Inputs

The Resolver (RW) module for the RMC150 interfaces to resolvers that operate at 400 Hz and 26 V RMS. The Resolver module front bezel is labeled RES.

Features

Two axes of resolver feedback per module
14 or 16 bit resolution
Reference frequency 400 Hz
Resolver Transformation Ratio: 0.45
Two isolated, ±10 V, 14-bit drive outputs per module
Current output up to ±200 mA with VC2124 or VC2100 converter options
Custom options available – contact Delta

Part Number

The part number of this Resolver module is RWn, where n is the number of Resolver modules.

For example, RMC150E-RW1 is an RMC150E with one Resolver (RW) module. RMC150E-RW3-Q1 is an RMC150E with three Resolver (RW) modules and one Quadrature module.

Setting Up the Resolver Module

Wire the resolver according to the RMC150 Resolver Wiring topic.
Set the Resolver Resolution.
Scale the axis. Typically, resolvers will use Rotary Scaling. Notice that one revolution of the resolver will always consist of 65,536 counts on the RMC, regardless of the resolver resolution parameter.

Specifications

For general specifications on the RMC150, see the RMC150 Overview topic.

Resolver (RW) Interface
Axes	Two per module
Reference Frequency	400 Hz
Reference Input Voltage	26 V RMS
Resolver Transformation Ratio (SINMAX/Reference)	0.45
Resolver Input Voltage	11.8 V RMS ±15%
Resolution	14 or 16 bits
Maximum Speed	14 bits: 360 RPM 16 bits: 90 RPM
Maximum Acceleration	14 bits: 30 RPS per second 16 bits: 4 RPS per second
Accuracy	4 Minutes + 1 LSB
Control Outputs
Range	±10 V @ 5 mA (2 kΩ or greater load) (For current output, use the VC2124 accessory:±10 mA to ±200 mA in 10mA steps)
Tolerance	At 10 V: +200 mV, -100 mV At 0 V: ±50 mV At -10 V: +100 mV, -200 mV
Resolution	14 bits
Output Isolation	500VAC

LEDS

Axis 0 LED

Axis LED applies to the Drive 0 output or feedback input 0 as described below:

If Drive 0 is assigned to an axis that has an input (i.e. isn't output-only), then that axis will own the Axis 0 LED.
Otherwise, if a reference input axis (no output) uses input 0, then that axis will own the Axis 0 LED.
Otherwise, if Drive 0 is assigned to an output-only axis, then that axis will own Axis 0 LED.

Axis 1 LED

Axis 1 LED applies to the Drive 1 output or feedback input 1 as described below:

If Drive 1 is assigned to an axis that has an input (i.e. isn't output-only), then that axis will own the Axis 1 LED.
Otherwise, if a reference input axis (no output) uses input 1, then that axis will own the Axis 1 LED.
Otherwise, if Drive 1 is assigned to an output-only axis, then that axis will own the Axis 1 LED.

LED Colors

State	Description
Steady Off	No power or the output/input is not assigned to an axis.
Steady Green	The axis is either in closed loop control or is a reference axis. The axis is not halted.
Flashing Green	The output is in open loop and the axis is not halted (not possible for reference axes).
Flashing Red	A Closed Loop Halt or External Halt has occurred because an error bit is set (not possible for reference axes). The LED will not turn red due to a halt caused by a halt command.
Steady Red	An Open Loop Halt or Direct Output Halt has occurred because an error bit is set (for reference axes, any halt has occurred). The LED will not turn red due to a halt caused by a halt command.