Elmo Computer Hardware 1.1 User Manual

Encoder outputs 

See Auxiliary Encoder Outputs specifications  

Resolver format 

  Sine/Cosine 

  Differential 

Input resistance 

Differential 2.49 k

Ω 

Resolution 

Programmable: 10 ~ 15 bits 

Maximum electrical frequency  (RPS) 

512 revolutions/sec 

Resolver transfer ratio 

0.5 

Reference frequency 

1/Ts (Ts = sample time in seconds)  

Reference voltage 

Supplied by the Guitar  

Reference current 

up to ±50 mA 

Encoder outputs 

See Auxiliary Encoder Output specifications  

Tachometer format 

Differential 

Maximum operating differential 
voltage for TAC1+, TAC1- 

±20 V 

Maximum absolute differential input 
voltage for  TAC1+, TAC1- 

±25 V 

Maximum operating differential 
voltage for TAC2+, TAC2- 

±50 V 

Maximum absolute differential input 
voltage for  TAC2+, TAC2- 

±60 V 

Input resistance for TAC1+, TAC1- 

46 kΩ 

Input resistance for TAC2+, TAC2- 

100 kΩ 

Resolution 14 

bit 

* Only one Tachometer port can be used at a time (either TAC1+/TAC1- or TAC2+/TAC2-). 

TAC1+/TAC1- is used in applications with having a Tachometer of less than 20 V.  
TAC2+/TAC2- is used in applications with having a Tachometer of between 20 V and 
50 V. 

Guitar Installation Guide 

 

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