GEM 1434 mPos Manual

GEMÜ 1441
www.gemu-group.com
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Fail safe functions
Fail safe functions
Case Error Connection A1 (2) Connection A2 (4)
1 Power supply failure Single acting fail safe: Venting
Single acting fail freeze: Blocking
Double acting fail safe: Venting
Double acting fail freeze: Blocking
Single acting: - (No connection avail-
able)
Double acting fail safe: Venting
Double acting fail freeze: Blocking
2 Compressed air supply failure Single acting fail safe: Venting
Single acting fail freeze: Blocking
Double acting fail safe: Venting
Double acting fail freeze: Blocking
Single acting: - (No connection avail-
able)
Double acting fail safe: Venting
Double acting fail freeze: Blocking
However, the fail safe function does not replace the plant-specific safety devices.
Adjustable safety reactions
Error Connection A1 (2) Connection A2 (4)
Set value < 4 mA
(range below the set value under I Min W
can be adjusted 0–22 mA)
Single and double acting
Adjustable function
(Open, Close, Hold, Safe*)
Single acting: (Connection not available)
Double acting: Adjustable function
(Open, Close, Hold, Safe*)
Set value > 20 mA
(range below the set value I max can be
adjusted from 0–22 mA)
Single and double acting
:Adjustable function
(Open, Close, Hold, Safe*)
Single acting: (Connection not available)
Double acting: Adjustable function
(Open, Close, Hold, Safe*)
* Safe = default setting. In this case, the valve actuator is moved to its safety position (undefined for double acting)
Fail safe functions

GEM 1434 mPos Specifications

General

Brand	GEM
Model	1434 mPos
Category	Valve Positioners
Language	English