SPA3

The SPA3 is a servo power amplifier with enhancements for higher power and category 2 E-STOP.

SPA3 can be used with the current range of Renishaw controllers
The high power capability combined with a compact enclosure enables use of the SPA3 across a wide range of machines
The SPA3 CMM amplifier has the capability to:
- power three axes of a CMM
- accept input signals from air pressure, crash detection and all axis inner and outer travel limit switches
- accept two uncommitted general purpose input signals and generate one uncommitted general purpose output signal
- provide a +24 V supply for use by the CMM switches
- support the MCUlite-2 joystick, and also support the MCU5, MCU5-2, MCU W and MCU W-2
- provide power output of up to 800 W continuous and 960 W for up to 1 second
- set the voltage of each axis independently allowing differing motor voltages to be used
- support dc motors in the range 12 V to 80 V and currents up to 10 A
- support encoder / tacho or linear encoders (torque mode) for velocity feedback
- provide category 2 E-STOP

Technical specification

SPA comparison

■ Standard specification

- Not available

(1) Peak power of 600 W can be drawn for a maximum of 50 seconds

* SPA2-2 4-axis, 5-axis and 6-axis versions also available (for use with UCC2-2 only)

	SPA2-2 (3-axis) *	SPA3
UCC controller compatibility	UCC2-2	UCC2-2, UCC T3-2, UCC T3 PLUS, UCC S3 or UCC T5
Servo amplifier channels	3	3
Additional servo amplifier channels	1 (UCC2-2 systems only)	-
Total output power	600 W	960 W max. (PSU dependent)
Maximum continuous power per channel	300 W (1)	800 W (PSU dependent)
Peak power per channel (dependent on application)	600 W	960 W (PSU dependent)
Amplifier output (motor) voltage	12 V to 60 V variable	12 V to 80 V variable
Amplifier current	0 A to 10 A programmable	0 A to 10 A programmable
Emergency stop compatibility	Category '2' E-STOP	Category '2' E-STOP
Tuning method	Digital	Digital
DC brushed motor compatibility	■	■
Tacho motor velocity feedback	■	■
Tacholess velocity feedback	■	■
Encoder velocity feedback	■	■
AC power supply	Integral	External
Power supply - input	85 V to 132 V ac, 170 V to 264 V ac, 47 Hz to 63 Hz, 650 W	PSU dependent
Environment - storage	-10 °C to +70 °C (+14 °F to +158 °F)	-10 °C to +70 °C (+14 °F to +158 °F)
Environment - operation	+10 °C to +50 °C (+50 °F to +122 °F) local to UCC	+5 °C to +50 °C (+41 °F to +122 °F) local to UCC
Dimensions:
Width	435 mm (19 in enclosure)	440 mm (19 in enclosure)
Height	3U (127 mm)	1U (44 mm)
Depth	330 mm	180 mm
Weight	9.48 kg (20 lb 14 oz) (maximum - 7-axis system)	2.84 kg (6 lb 4 oz)

UCC retrofit

Renishaw has formed a technical partnership with some of the industry's leading software companies and retrofitters to provide powerful CMM retrofit solutions using Renishaw's UCC controllers.