User manual
1 
TDK-Lambda 
GWS 2
50 
Series 
INSTRUCTION MANUAL 
1. Model name identification method 
  GWS
GWSGWS
GWS 
 250
250250
250 
 –
––
– 
 12
1212
12 
 /
//
/ 
2. Terminal Explanation 
2-1.  Front Panel Explanation 
(1)  L : Input terminal Live line (Fuse in line) 
(2)  N : Input terminal Neutral line 
(3)  FG
: Frame Ground 
(4)  - V : - Output terminal 
(5)  +V : + Output terminal 
(6)  Output monitoring indicator (Green LED : ON) 
(7)  V.ADJ : Output voltage adjustable trimmer 
(The output voltage rises when the trimmer is turned clockwise.) 
(8)  CN1: DC_OK, 5VSB, Remote On/Off and PV signals (Refer to 2.2) 
(*1) 
blank:  Standard type 
/P:    Power up to 350W with system airflow of 
    20cfm minimum and air blowing in from 
    opposite side of input/output connectors 
/BAT:  Battery charging for 24V (21~29V/8.8A) 
  & 48V (42~58V/4.4A) only 
/T:    OTP autorecovery after unit cools down 
/RL:  Remote ON/OFF reverse logic (Active High) 
Option (*1) 
Rated Output Voltage 
Output Power type 
Series name 










